INXPECT SRE 200 Series Safety Radar System IO User Manual

: May 15, 2024
: INXPECT

INXPECT SRE 200 Series Safety Radar System IO

INXPECT-SRE-200-Series-Safety-Radar-System-IO-image

Product Information

Specifications

Product Name: Inxpect SRE 200 Series
Type: Safety Radar Equipment
Range: 5 meters sensors
Instruction Manual Version: v1.5 – EN

Product Usage Instructions

1. Safety

Before using the Inxpect SRE 200 Series, it is crucial to understand and adhere to the safety guidelines outlined in the manual.

2. Get to Know Inxpect SRE 200 Series

The Inxpect SRE 200 Series consists of control units, inputs, outputs, sensors, safety applications, and communication interfaces like PROFIsafe and MODBUS.

3. Functioning Principles

Understand the functioning principles of the sensors and detection fields to effectively utilize the system.

4. Safety Functions

Learn about the safety working modes, access detection, restart prevention functions, and features like static object detection.

5. Other Functions

Explore additional functions such as muting, anti-tampering features, auto- resume (for 5.x sensors), and electromagnetic robustness.

6. Sensor Position

Understand the sensor’s field of view, dangerous area calculation, range of distances, and recommendations for sensor positioning in various scenarios.

7. Installation and Use Procedures

Follow the steps for installation, configuration, validation of safety functions, managing configurations, and other related procedures.

8. Troubleshooting

If you encounter issues, refer to the troubleshooting procedures, event log management, and specific error events for control units, sensors, and CAN bus.

9. Maintenance

Learn about planned and extraordinary maintenance tasks to ensure the optimal performance of the Inxpect SRE 200 Series.

Frequently Asked Questions

Can the range of the sensors be adjusted?

The range of the sensors on the Inxpect SRE 200 Series is fixed at 5 meters and cannot be adjusted.

Is outdoor installation supported?

Yes, outdoor installations are supported. Refer to section 7.8 for specific guidelines on outdoor installations.

How can I request additional copies of the manual?

To request additional copies of the manual or technical information, contact Inxpect SpA via the provided email or phone number.

Inxpect SRE 200 Series
SRE – Safety Radar Equipment
5 meters range sensors
Instruction manual v1.5 – EN
Original instructions WARNING! Anyone who uses this system must read the instruction manual to ensure safety. Read and adhere to the “Safety information” chapter in its entirety before using the system for the first time.

Copyright © 2021-2023, Inxpect SpA
All rights reserved in all countries.
Any distribution, alteration, translation or reproduction, partial or total, of this document is strictly prohibited unless with prior authorization in writing from Inxpect SpA, with the following exceptions:
l Printing the document in its original format, totally or partially. l Transferring the document on websites or other electronic systems. l Copying contents without any modification and stating Inxpect SpA as
copyright owner.
Inxpect SpA reserves the right to make modifications or improvements to the relative documentation without prior notice.
Requests for authorizations, additional copies of this manual or technical information about this manual must be addressed to:
Inxpect SpA Via Serpente, 91 25131 Brescia (BS) Italy safety- support@inxpect.com +39 030 5785105

Glossary of terms

A
Activated output (ON-state) Output that switches from OFF to ON-state.
Angular coverage Property of the field of view that corresponds to the coverage on the horizontal plane.
D
Dangerous area Area to be monitored because it is dangerous for people.
Deactivated output (OFF-state) Output that switches from ON to OFF-state.
Detection distance x Depth of the field of view configured for detection field x.
Detection field x Portion of the field of view of the sensor. Detection field 1 is the field closer to the sensor.
Detection signal x Output signal that describes the monitoring status of the detection field x.
E
ESPE (Electro-Sensitive Protective Equipment) Device or system of devices used for the safety-related detection of people or parts of the body. ESPEs provide personal protection at machines and plants/systems where there is a risk of physical injury. These devices/systems cause the machine or plant/system to switch over to a safe status before a person is exposed to a dangerous situation.
F
Field of view Sensor area of vision characterized by a specific angular coverage.
Fieldset Structure of the field of view which can be composed of up to four detection fields.
FMCW Frequency Modulated Continuous Wave

Glossary of terms
I
Inclination Sensor rotation around the x-axis. The sensor inclination is the angle between a line perpendicular to the sensor and a line parallel to the ground.
M
Machinery The system for which the dangerous area is monitored.
Monitored area Area that is monitored by Inxpect SRE 200 Series. It is composed of all the fields of all the sensors.
O
OSSD Output Signal Switching Device
R
RCS Radar Cross-Section. Measure of how detectable an object is by radar. It depends, among other factors, on the material, dimension and position of the object.
T
Tolerance area Area of the field of view where detection or not of a moving object/person depends on the characteristics of the same object itself.

This manual

1.1 Information on this manual

1.1.1 Objectives of this instruction manual
This manual explains how to integrate Inxpect SRE 200 Series with 5 meters range sensors to safeguard the machinery operators and how to install, use and maintain them safely.
This document includes all the information as Safety Manual according to IEC 61508-2/3 Annex D. Please refer in particular to “Safety parameters” on page 105 and to “System software” on page 132.
The functioning and safety of the machinery to which Inxpect SRE 200 Series is connected is out of the scope of this document.

1.1.2 Obligations with regard to this manual
NOTICE: this manual is an integral part of the product and must be kept for its entire working life. It must be consulted for all situations related to the life cycle of the product, from its delivery to decommissioning.
It must be stored so that it is accessible to operators, in a clean location and in good condition.
In the event of manual loss or damage, contact Technical Support (see “Technical Support” on page 133).
Always make the manual available for consultation when the equipment is sold.

1.1.3 Provided documentation

Document Instruction manual – 5 meters range sensors (this manual)
Instruction manual – 9 meters range sensors
Installation instructions
PROFIsafe communication Reference guide
FSoE communication Reference guide
MODBUS communication Reference guide
National configuration addendum
Cable validator

Code
Inxpect SAF-IM-200S_5m7 00047_en

Date DEC 2023

Inxpect SAF-IM-200S_9m7 00240_en

DEC 2023

Inxpect SAF-MI-100S-200S_ 26000041_7_00046_multi

MAY 2023

Inxpect 100S_200S PROFIsafe MAY 2023 RG_7_00067_en

Inxpect 100S_200S FSoE RG7 MAY 2023 00237_en

Inxpect 100S200S MODBUS RG MAY 2023 7_00075_en

Inxpect 200S National

–

configurations addendum7

00079_multi

Inxpect 100S_200S Cable

–

Validator tool_7_00066_en

Distribution format
online PDF
PDF downloadable from the site https://tools.inxpect.com
online PDF
PDF downloadable from the site https://tools.inxpect.com
printed
PDF downloadable from the site https://tools.inxpect.com
online PDF
PDF downloadable from the site https://tools.inxpect.com
online PDF
PDF downloadable from the site https://tools.inxpect.com
online PDF
PDF downloadable from the site https://tools.inxpect.com
online PDF
PDF downloadable from the site https://tools.inxpect.com
online Excel
Excel downloadable from the site https://tools.inxpect.com

1. This manual

1.1.4 Instruction manual updates

Publication date
DEC 2023 MAY 2023
APR 2022

Code Inxpect SAF-IM-200S_ 5m_7_00047_env1.5
Inxpect SAF-IM-200S 5m_7_00047_en_v1.4
SAF-UM-SBVBus-env1.3

Hardware version Firmware version

Updates

Control units: l Type A: 2.2

Control units: l Type A: 2.0

l Type B: 2.4

l Type B: 2.0

Sensors: l S201A model: 2.2
l S203A model : 1.0

Sensors: l S201A: 3.2 l S201A-W: 5.0 l S203A-W: 5.0

Control units: l Type A: 2.2

Control units: l Type A: 2.0

l Type B: 2.4

l Type B: 2.0

Sensors: l S201A model: 2.2
l S203A model : 1.0

Sensors: l S201A: 3.2 l S201A-W: 5.0 l S203A-W: 5.0

l C201A-PNS, C202A and C203A: 2.1
l S201A: 2.1
l S201A-MLR: 2.1

l C201A-PNS, C202A and C203A: 1.6.0
l S201A: 3.1
l S201A-MLR: 3.1M

Changed the total maximum length of the CAN bus line into 80 m (262.5 ft). Changed control unit maximum power into 11.2 W. Changed values for Case 4 in “Dynamic configuration through the digital inputs” on page 35.
Added control units: C201A-F, C201B-P, C201B-F, C202B, C203B. Added sensors: S201A-W, S201A-WL, S203A-W, S203A-WL. Updated procedures in “Validate the safety functions” on page 77. Added sensor configuration error details (“Sensor configuration error (SENSOR CONFIGURATION ERROR)” on page 97. Added multi-user management for the Inxpect Safety application. Changed name of digital input function: Activate dynamic configuration > Dynamic configuration switch New input functions: Restart signal on a single channel (cat 2), System recondition on a single channel (cat.2), and Fieldbus controlled on a single channel (cat.2). New inputs options: Redundancy mode, Encoded channel. New output functions: Detection signal group, Fieldbus controlled on a single channel. Updated Factory reset procedure (“Restore factory default settings” on page 82). Added Electromagnetic robustness parameter (“Electromagnetic Robustness” on page 52). Added Static object detection sensitivity. Updated “Dangerous area calculation” on page 58. Added “OSSD diagnostic checks” on page 25. Other minor changes.
Changed system, control unit, and sensors denomination. Renamed safety working modes (“Always restart prevention” > “Always-on restart prevention”; “Always access detection” > “Always-on access detection”).
Added S201A-MLR sensor.
Updated standard list in “Standards and Directives” on page 13. Updated the anti-rotation around axes function (disabled by default, can be enabled for each axis of each sensor) in “Anti-tampering functions: anti-rotation around axes” on page 49. Updated the anti-masking function (can be disabled for each axis of each sensor) in “Anti-tampering functions: anti-masking” on page 50. Updated parameters list and organization in “Configuration application parameters” on page 118. Updated K value in “Formula for stationary application” on page 58. Minor changes.

Note: the firmware of the control unit can be updated through the Inxpect Safety application. The latest firmware version available contains the features described in the manual at the system level. The sensor firmware cannot be
updated.

1.1.5 Intended users of this instruction manual
The recipients of the instruction manual are:
l the machinery manufacturer onto which the system will be installed l system installer l machinery maintenance technician

1. This manual

SAFETY

2.1 Safety information

2.1.1 SAFETY MESSAGES
Warnings related to the safety of the user and of the equipment as envisaged in this document are as follows: WARNING! Indicates a hazardous situation which, if not avoided, may cause death or serious injury.

NOTICE: indicates obligations that if not observed may cause harm to the equipment.
2.1.2 SAFETY SYMBOLS ON THE PRODUCT
This symbol marked on the product indicates that the manual must be consulted. In particular, pay attention to the following activities: l wiring of the connections (see “Terminal blocks and connector pin-outs” on page 109 and “Electrical
connections” on page 111) l cable operating temperature (see “Terminal blocks and connector pin-outs” on page 109) l control unit cover, which was subjected to a low energy impact test (see “Technical data” on page 105)

2.1.3 PERSONNEL SKILLS

The recipients of this manual and the skills required for each activity presented herein are as follows:

Recipient
Machinery manufacturer

Assignments
l defines which protective devices should be installed and sets the installation specifications

Protection

l installs the system

system installer l configures the system

l prints configuration reports

Machinery maintenance technician

l performs maintenance on the system

Skills
l knowledge of significant hazards of the machinery that must be reduced based on risk assessment
l knowledge of the entire machinery safety system and the system on which it is installed
l advanced technical knowledge in the electrical and industrial safety fields
l knowledge of the dimensions of the dangerous area of the machinery to be monitored
l receives instructions from the machinery manufacturer
l advanced technical knowledge in the electrical and industrial safety fields

2.1.4 SAFETY ASSESSMENT
Before using a device, a safety assessment in accordance with the Machinery Directive is required.
The product as an individual component fulfills the functional safety requirements in accordance with the standards stated in “Standards and Directives” on page 13. However, this does not guarantee the functional safety of the overall plant/machine. To achieve the relevant safety level of the overall plant/machine’s required safety functions, each safety function needs to be considered separately.

2. Safety
2.1.5 INTENDED USE
Inxpect SRE 200 Series is a human body detection system, certified SIL 2 according to IEC/EN 62061, PL d according to EN ISO 13849-1 and Performance Class D according to IEC TS 62998-1.
It performs the following safety functions:
l Access detection function: access of one or more persons to a hazardous area deactivates the safety outputs to stop the moving parts of the machinery.
l Restart prevention function: prevents unexpected starting or restarting of the machinery. Detection of motion within the dangerous area maintains the safety outputs deactivated to prevent machinery starting.
It performs the following additional safety-related functions:
l Stop signal (Category 3, according to EN ISO 13849-1): it forces all the safety outputs to OFF-state. Only on C201A and C201B models, it signals a stop request status with a specific safety message on the Fieldbus output interface.
l Restart signal: it enables the control unit to switch to ON-state the safety outputs related to all the detection fields with no motion detected. Only on C201A and C201B models, it makes disappear a stop request status with a specific safety message on the Fieldbus output interface. It can be performed: o using single channel inputs/OSSDs (Category 2, according to EN ISO 13849-1) o using dual channel inputs/OSSDs (Category 3, according to EN ISO 13849-1)
l Muting (Category 3, according to EN ISO 13849-1): it inhibits the detection capability of one or a group of sensors (see “Muting” on page 48).
l Dynamic configuration switch (Category 3, according to EN ISO 13849-1): it allows the dynamic switch among previously set configurations (see “System configuration” on page 34).
l Fieldbus controlled: it monitors the input status through Fieldbus communication. It can be performed: o using single channel inputs/OSSDs (Category 2, according to EN ISO 13849-1): it provides the capability to safely redirect the value of the input data exchanged with the Fieldbus master to a physical status of the OSSDs. o using dual channel inputs/OSSDs (Category 3, according to EN ISO 13849-1): it provides the capability to safely redirect the status of the digital inputs to the output data exchanged with the Fieldbus master. WARNING! the following faults makes the Fieldbus controlled safety-related function unavailable: POWER ERROR, TEMPERATURE ERROR, FIELDBUS ERROR, PERIPHERAL ERROR, FEE ERROR and FLASH ERROR. WARNING! only for Stop signal, Restart signal, Muting and Dynamic configuration switch. Any fault on the sensors or the control unit brings the system to the safe state and makes the safety-related functions unavailable.
Inxpect SRE 200 Series is suitable for protecting the human body in the following scenarios:
l dangerous area protection in stationary and mobile applications l indoor and outdoor applications
Inxpect SRE 200 Series meets requirements of applications safety functions that require a risk reduction level of:
l up to SIL 2, HFT = 0 according to IEC/EN 62061 l up to PL d, Category 3 according to EN ISO 13849-1 l up to Performance Class D according to IEC TS 62998-1
Inxpect SRE 200 Series, in combination with additional risk reduction means, can be used for applications safety functions that require higher risk reduction levels.
2.1.6 IMPROPER USE
The following is deemed improper use in particular:
l any component, technical or electrical modification to the product l use of the product outside the areas described in this document l use of the product outside the technical details, see “Technical data” on page 105
2.1.7 EMC-COMPLIANT ELECTRICAL INSTALLATION
NOTICE: The product is designed for use in an industrial environment. The product may cause interference if installed in other environments. If installed in other environments, measures should be taken to comply with the applicable standards and directives for the respective installation site with regard to interference.

2. Safety
2.1.8 GENERAL WARNINGS
l Incorrect installation and configuration of the system decreases or inhibits the protective function of the system. Follow the instructions provided in this manual for correct installation, configuration and validation of the system.
l Changes to the system configuration may compromise the protective function of the system. After any changes made to the configuration, validate correct functioning of the system by following the instructions provided in this manual.
l If the system configuration allows access to the dangerous area without detection, implement additional safety measures (e.g., guards).
l The presence of static objects, in particular metallic objects, within the field of view may limit the efficiency of sensor detection. Keep the sensor field of view unobstructed.
l The system protection level (SIL 2, PL d) must be compatible with the requirements set forth in the risk assessment.
l Check that the temperature of the areas where the system is stored and installed is compatible with the storage and operating temperatures indicated in the technical data of this manual.
l Radiation from this device does not interfere with pacemakers or other medical devices.
2.1.9 WARNINGS FOR THE RESTART PREVENTION FUNCTION
l The restart prevention function is not guaranteed in blind spots. If required by the risk assessment, implement adequate safety measures in those areas.
l Machinery restarting must be enabled only in safe conditions. The button for the restart signal must be installed: o outside of the dangerous area o not accessible from the dangerous area o in a point where the dangerous area is fully visible
2.1.10 RESPONSIBILITY
The machinery manufacturer and system installer are responsible for the operations listed below: l Providing adequate integration of the safety output signals of the system. l Checking the monitored area of the system and validating it based on the needs of the application and risk assessment. l Following the instructions provided in this manual.
2.1.11 LIMITS
l If the static object detection option is disabled, the system cannot detect the presence of people who are immobile and not breathing or objects within the dangerous area.
l The system does not offer protection from pieces ejected from the machinery, from radiation, and objects falling from above.
l The machinery command must be electronically controlled.
2.1.12 DISPOSAL
In safety-related applications, comply with the mission time reported in “General specifications” on page 105. For decommissioning follow the instructions reported in “Disposal” on page 133.

2. Safety

2.2 Conformity

2.2.1 STANDARDS AND DIRECTIVES

Directives Harmonized standards
Non-harmonized standards

2006/42/EC (MD – Machinery) 2014/53/EU (RED – Radio equipment) EN ISO 13849-1: 2015 PL d EN ISO 13849-2: 2012 IEC/EN 62061: 2021 ETSI EN 305 550-2 V1.2.1 IEC/EN 61010-1: 2010, A1:2019 ETSI EN 301 489-1 v2.2.3 (only emissions) ETSI EN 301 489-3 v2.1.1 (only emissions) IEC/EN 61000-6-2:2019 IEC/EN 62061: 2005, A1:2013, A2:2015, AC:2010 SIL 2 IEC/EN 61326-3-1:2017 IEC/EN 61496-1: 2013 (section 5.4.2 and 5.4.4), AC:2015 IEC/EN 61496-1: 2020 (section 5.4.2 and 5.4.4) IEC/EN 61508: 2010 Part 1-7 SIL 2 ETSI EN 305 550-1 V1.2.1 IEC TS 62998-1:2019 UL 61010-1 CAN/CSA 61010-1 UL 61496-1 CRD of IEC 61496-3 IEC/EN 61784-3-3:2016 for the PROFIsafe Fieldbus IEC/EN 61784-3-12:2010, A1:2019 for FSoE Fieldbus

Note: no type of failure has been excluded during the system analysis and design phase. All updated certifications can be downloaded from https://www.inxpect.com/en/downloads.

2.2.2 CE
The manufacturer, Inxpect SpA, states that Inxpect SRE 200 Series (Safety Radar Equipment) complies with the 2014/53/EU and 2006/42/EC directives. The full EU Declaration of Conformity text is available on the company’s website: https://www.inxpect.com/en/downloads.

2.2.3 UKCA
The manufacturer, Inxpect SpA, states that Inxpect SRE 200 Series (Safety Radar Equipment) complies with Radio Equipment Regulations 2017 and Supply of Machinery (Safety) Regulations 2008. The full UKCA Declaration of Conformity text is available on the company’s website: https://www.inxpect.com/en/downloads.

2.2.4 OTHER CONFORMITIES AND NATIONAL CONFIGURATIONS
For a complete, up-to-date list of product conformities and any national configurations, please refer to the National configuration addendum document. The PDF can be downloaded from the site https://tools.inxpect.com.

Get to know Inxpect SRE 200 Series

Product label description
The following table describes the information contained in the product label:

Part SID DC SRE Model Type S/N

Description Sensor ID “yy/ww” : year and week of the product manufacture Safety Radar Equipment Product model (e.g., S201A, C201A) Product variant, used for commercial purposes only Serial number

3.1 Inxpect SRE 200 Series
3.1.1 Definition
Inxpect SRE 200 Series is an active protection radar system that monitors the dangerous areas of machinery.
3.1.2 Special features
Some of the special features of this protection system are the following:
l detection of current distance and angle of the targets detected by each sensor l customization of the detection field with advanced shapes (if available) l up to four safe detection fields to define different behaviors of the machines l programmable coverage angle for each detection field l rotation around three axes during installation to allow better coverage of detection areas l Safety Fieldbus to safely communicate with the PLC of the machinery (if available) l possibility to switch dynamically between different preset configurations (max. 32 through Fieldbus, if
available, and max. 8 with digital inputs) l muting on the entire system or only on some sensors l immunity to dust and smoke l reduction of undesired alarms caused by the presence of water or processing waste l communication and data exchange through MODBUS (if available)

3. Get to know Inxpect SRE 200 Series
3.1.3 Main components
Inxpect SRE 200 Series is composed of a control unit and up to six sensors. The Inxpect Safety application allows system operation configuration and checks.

3.1.4 Control unit and sensor compatibility
The models and types of control unit and sensors are shown below, with their compatibility.

Each control unit, updated to firmware version 2.0.0, can communicate with any sensor.
NOTICE: do not connect the control unit with other types of sensors (e.g., 9 meters range sensors).
The control unit can be simultaneously connected to both 3.x sensors and 5.x sensors. For more details about the available features, see ” Sensors” on page 26.
3.1.5 Control unit – sensor communication
The sensors communicate with the control unit via CAN bus using diagnostic mechanisms in compliance with standard EN 50325-5 to guarantee SIL 2 and PL d. For correct functioning, each sensor must be assigned an identification number (Node ID). Sensors on the same bus must have different Node IDs. By default, the sensor does not have a pre-assigned Node ID.

3. Get to know Inxpect SRE 200 Series

3.1.6 Control unit – machinery communication
The control units communicate with the machinery via I/O (see “Control unit inputs” on page 21 and “Control unit outputs” on page 23).
Moreover, according to the model-type, the control unit is provided with:
l a safe communication on a Fieldbus interface. The Fieldbus interface allows the control unit to communicate in real-time with the PLC of the machinery to send information about the system to the PLC (e.g., the position of the detected target) or to receive information from the PLC (e.g., to change the configuration dynamically). For details, see “Fieldbus communication (PROFIsafe)” on page 30 or see “Fieldbus communication (Safety over EtherCAT® – FSoE)” on page 32.
l an Ethernet port that allows unsafe communication on a MODBUS interface (see “MODBUS communication” on page 33).
3.1.7 Applications
Inxpect SRE 200 Series integrates with the machinery control system: when performing safety functions or detecting failures, Inxpect SRE 200 Series deactivates the safety outputs and keeps them deactivated, so the control system can put the area into a safe condition and/or prevent restarting of the machinery.
In the absence of other control systems, Inxpect SRE 200 Series can be connected to the devices that control the power supply or machinery start-up.
Inxpect SRE 200 Series does not perform normal machinery control functions.
For connection examples, see “Electrical connections” on page 111.

3.2 Control units

3.2.1 Interfaces
The Inxpect SRE 200 Series supports different control units. The main difference among them is the connection ports, and therefore the communication interfaces available, and the presence of the microSD slot:

Type A Type B

Model Type C201A -PNS C201A -F C202A C203A C201B -P C201B -F C202B C203B –

micro-USB port x x x x x x x x

Ethernet port
x x x x x x –

Fieldbus port x (PROFIsafe)
x (FSoE) –
x (PROFIsafe) x (FSoE) –

microSD slot x x x x

3.2.2 Communication architecture
According to the model-type, this is the communication architecture between the control unit, PLC and PC.

3. Get to know Inxpect SRE 200 Series
3.2.3 Functions
The control unit performs the following functions: l Collects information from all the sensors via CAN bus. l Compares the position of detected motion with the set values. l Deactivates the selected safety output when at least one sensor detects motion in the detection field. l Deactivates all the safety outputs if a failure is detected in one of the sensors or the control unit. l Manages the inputs and outputs. l Communicates with the Inxpect Safety application for all configuration and diagnostic functions. l Allows dynamically switching between different configurations. l Communicates with a safety PLC through the safe Fieldbus connection (if available). l Communicates and exchanges data through MODBUS protocol (if available). l Performs a backup and a restore system configuration and password to/from microSD card (if available).
3.2.4 Type A control units

C201A-PNS, C201A-F

C202A

C203A

Part A B C D E
F

Description
I/O terminal block
System status LEDs
Network parameter reset button / Factory reset button
Reserved for internal use. Output reset button
Micro-USB port (micro-B type) for connecting the PC and communicating with the Inxpect Safety application
Micro-USB port, if mounted (reserved)

C201A-PNS x x x
x
x

C201A-F x x x
x
x

C202A x x x x x
–

C203A x x x x x
–

3. Get to know Inxpect SRE 200 Series

Part G
H I J K L
M1
M2
N O

Description
Fieldbus status LEDs
See “PROFIsafe Fieldbus status LEDs” on page 20 or “FSoE Fieldbus status LEDs” on page 20.
Ethernet port with LEDs for connecting the PC, communicating with the Inxpect Safety application, and for MODBUS communication
Power supply terminal block
Power supply LEDs (steady green)
CAN bus terminal block for connecting the first sensor
DIP switch to turn on/off the bus termination resistance:
l On (top position, default) = resistance included
l Off (bottom position) = resistance excluded
Status LED of hardware functions of the secondary micro-controller:
l slow flashing orange: normal behavior
l other status: contact Technical Support
Status LED of hardware functions of the primary micro-controller:
l off: normal behavior l steady red: contact
Technical Support
Fieldbus port no.1 with LEDs (PROFIsafe or EtherCAT® IN)
Fieldbus port no.1 with LEDs (PROFIsafe or EtherCAT® OUT)

C201A-PNS x
x x x x x
x
x
x x

C201A-F x
x x x x x
x
x
x x

C202A –
x x x x x
x
x
–

C203A –
x x x x
x
x
–

Note: only for C201A-F: the processing direction is from the N connection to the O connection. In normal operation, the device receives the data from the controller on N and sends the outgoing data on O.

3.2.5 Type B control units

C201B-P, C201B-F

C202B

3. Get to know Inxpect SRE 200 Series

C203B

Part A B C D
E
F G H
I J K L
M1

Description
I/O terminal block
System status LEDs
Network parameter reset button / Factory reset button
Micro-USB port (micro-B type) for connecting the PC and communicating with the Inxpect Safety application
Fieldbus status LEDs
See “PROFIsafe Fieldbus status LEDs” on the next page or “FSoE Fieldbus status LEDs” on the next page.
SD Restore button
MicroSD slot
Ethernet port with LEDs for connecting the PC, communicating with the Inxpect Safety application, and for MODBUS communication
Power supply terminal block
Power supply LEDs (steady green)
CAN bus terminal block for connecting the first sensor
DIP switch to turn on/off the bus termination resistance:
l On (top position, default) = resistance included
l Off (bottom position) = resistance excluded
Status LED of hardware functions of the secondary micro-controller:
l slow flashing orange: normal behavior
l other status: contact Technical Support

C201B-P x x x x
x
x x x
x x x x
x

C201B-F x x x x
x
x x x
x x x x
x

C202B x x x x
–
x x x
x x x x
x

C203B x x x x
–
x x –
x x x x
x

3. Get to know Inxpect SRE 200 Series

Part M2
N O

Description
Status LED of hardware functions of the primary micro-controller:
l off: normal behavior l steady red: contact
Technical Support
Fieldbus port no.1 with LEDs (PROFIsafe or EtherCAT® IN)
Fieldbus port no.1 with LEDs (PROFIsafe or EtherCAT® OUT)

C201B-P x
x x

C201B-F x
x x

C202B x
–

C203B x
–

Note: only for C201B-F: the processing direction is from the N connection to the O connection. In normal operation, the device receives the data from the controller on N and sends the outgoing data on O.

3.2.6 System status LEDs
The LEDs are each dedicated to a sensor, and can display the following statuses:

Status Steady green Orange Flashing red Steady red Flashing green

Meaning Normal sensor function and no motion detected Normal sensor function and some motion detected Sensor in error (see “Control unit LED” on page 85) System error (see “Control unit LED” on page 85) Sensor in boot status (see “Control unit LED” on page 85)

3.2.7 PROFIsafe Fieldbus status LEDs
The LEDs reflect the status of the PROFIsafe Fieldbus, and their meanings are reported below.

Note: F1 is the LED at the top, F6 is the LED at the bottom.

LED F1 (power) F2 (boot) F3 (link) F4 (not used) F5 (diagnosis)
F6 (not used)

Status

Meaning

Steady green

Normal behavior

Flashing green or Contact Technical Support off

Off

Normal behavior

Steady or flashing Contact Technical Support yellow

Off

Data exchange is running with the host

Flashing red

No data exchange

Steady red

No physical link

–

Off

Normal behavior

Flashing red

DCP signal service is initiated via the bus

Steady red

diagnostic error at PROFIsafe layer (wrong F Dest Address, watchdog timeout, wrong CRC) or diagnostic error at PROFINET layer (watchdog timeout; channel, generic or extended diagnosis present; system error)

–

3.2.8 FSoE Fieldbus status LEDs
The LEDs reflect the status of the FSoE Fieldbus as described below.
Note: F1 is the LED at the top, F6 is the LED at the bottom.

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LED F1 SYS F2 F3 (not used) F4 RUN F5
ERR
F6 (not used)

Status

Meaning

Steady green Flashing green or off Off Steady or flashing yellow Off Flashing green Single flash green Steady green Off Flashing red
Single flash red
Double flash red
–

Normal behavior Contact Technical Support
Normal behavior Contact Technical Support
INIT state Pre-Operational state Safe-Operational state Operational state Normal behavior Invalid configuration: General Configuration Error. Possible reason: State change commanded by the master is impossible due to register or object settings Local error: slave device application has changed the EtherCAT® state autonomously. Possible reasons: l a host watchdog timeout has occurred l synchronization error, the device enters the Safe-
Operational state automatically Application watchdog timeout: an application watchdog timeout has occurred. Possible reason: Sync Manager watchdog timeout –

3.3 Control unit inputs
3.3.1 Introduction
The system has two type 3 dual channel digital inputs (according to IEC/EN 61131-2). Alternatively, the four channels can be used as single channel digital inputs (category 2). The ground reference is common for all the inputs (see “Technical references” on page 104).
When using digital inputs, it is mandatory that the additional SNS input “V+ (SNS)” is connected to 24 V DC and that the GND input “V- (SNS)” is connected to the ground in order to:
l perform the correct input diagnostic l assure the system safety level
3.3.2 Input functions
The function of each digital input must be programmed through the Inxpect Safety application. The available functions are the following:
l Stop signal: additional safety-related function, which manages a specific signal to force all the safety outputs (detection signals, if present) to OFF- state.
l Restart signal: additional safety-related function, which manages a specific signal which enables the control unit to switch to ON-state the safety outputs related to all the detection fields with no motion detected.
l Muting group “N”: additional safety-related function, which manages a specific signal, allowing the control unit to ignore the information from a selected sensor group.
l Dynamic configuration switch: additional safety-related function, which allows the control unit to select a specific dynamic configuration.
l Fieldbus controlled (if available): additional safety-related function monitors the input status through Fieldbus communication. For example, a generic ESPE can be connected to the input, respecting electrical specifications.

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l System recondition: configures the system without changing any settings.
l Restart signal + System recondition: according to the input signal duration, performs the Restart signal function or the System recondition function.
For details about digital input signals, see “Digital input signals” on page 122.

3.3.3 Single or dual channel option
By default, each digital input function needs a signal on both channels to provide the redundancy required by Category 3.
The following digital input functions can also be used as a single channel (Category 2):
l Restart signal l Fieldbus controlled l System recondition l Restart signal + System recondition
In the Inxpect Safety application in Settings > Digital Input-Output, set the digital input function to Single channel (Category 2) and then choose the input function for each channel.

3.3.4 Redundancy mode
Two types of redundancy mode are available for the dual channels input functions: l Coherent redundancy

Input Channel 1 0 1 0 1

Input Channel 2 0 1 1 0

Input logic value Low High Error Error

l Inverted redundancy

Input Channel 1 0 1 0 1

Input Channel 2 1 0 0 1

Input logic value Low High Error Error

By default, the redundancy mode is coherent. For the following input functions, the inverted redundancy mode can be set to guarantee compatibility with different connected devices:
l Muting group “N” (only if pulse width = 0) l Restart signal l Fieldbus controlled l Dynamic configuration switch l System recondition l Restart signal + System recondition

3.3.5 SNS input
The control unit is provided with an SNS input (high logic level (1) = 24 V) needed to check the correct functioning of the inputs.
NOTICE: if at least one input is connected, the SNS input “V+ (SNS)” and the GND input “V- (SNS)” must also be connected.

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3.4 Control unit outputs
3.4.1 Outputs
The system has four digital OSSD short-circuit protected outputs that can be used individually (non safe) or can be programmed as dual channel safety outputs (safe) in order to ensure the system safety level.
An output is activated when it switches from OFF to ON-state and it is deactivated when it switches from ON to OFF-state.
3.4.2 Output functions
The function of each digital output must be programmed through the Inxpect Safety application.
The available functions are the following:
l System diagnostic signal: switches the selected output to OFF-state when a system fault is detected. l Muting enable feedback signal: switches the selected output to ON-state in the following cases:
o when a muting signal is received over the configured input and at least one group is in muting o when a muting command is received through Fieldbus communication (if available) and at least one
sensor is in muting l Detection signal 1: (e.g., alarm signal) switches the selected output to OFF-state when a sensor detects a
motion in detection field 1, receives a stop signal from the related input, or when there is a system failure. The selected output remains in OFF-state for at least 100 ms. Note: when an OSSD is configured as detection signal 1, a second OSSD is automatically assigned to it to provide a safe signal.
l Detection signal 2: switches the selected output to OFF-state when a sensor detects a motion in detection field 2, receives a stop signal from the related input, or when there is a system failure. The selected output remains in OFF- state for at least 100 ms. Note: when an OSSD is configured as detection signal 2, a second OSSD is automatically assigned to it to provide a safe signal.
l Detection signal 3: switches the selected output to OFF-state when a sensor detects a motion in detection field 3, receives a stop signal from the related input, or when there is a system failure. The selected output remains in OFF- state for at least 100 ms. Note: when an OSSD is configured as detection signal 3, a second OSSD is automatically assigned to it to provide a safe signal.
l Detection signal 4: switches the selected output to OFF-state when a sensor detects a motion in detection field 4, receives a stop signal from the related input, or when there is a system failure. The selected output remains in OFF- state for at least 100 ms. Note: when an OSSD is configured as detection signal 4, a second OSSD is automatically assigned to it to provide a safe signal.
l Fieldbus controlled (if available): allows the specific output to be set through the Fieldbus communication. l Restart feedback signal: switches the selected output to ON-state when it is possible to manually restart
at least one detection field (Restart signal). It can be set as Standard or Pulsed. o If all the used detection fields are configured as Automatic restart (in Settings > Restart function), the
selected output is always in OFF-state; o If at least one detection field in use is configured as Manual or Safe manual restart (in Settings >
Restart function), the behavior depends on the option selected (see “Restart feedback signal option settings” on the next page. l Static object detection feedback signal: switches the selected output to ON-state when at least one sensor detects a static object in one of its detection fields. The selected output remains in ON-state for at least 100 ms. If, at the same time, a moving target is detected in the detection field, the Static object detection feedback signal will switch its selected output to OFF-state for the duration of the movement. l Detection signal group 1 or Detection signal group 2: switches the selected output to OFF-state when at least one sensor detects a motion in a detection field belonging to the group (see “Detection signal group settings” on the next page), receives a stop signal from the related input, or when there is a system failure. The selected output remains in OFF- state for at least 100 ms.
Note: when an OSSD is configured as Detection signal group 1 or Detection signal group 2, a second OSSD is automatically assigned to it to provide a safe signal.
Each output status can be retrieved by Fieldbus communication (if available).

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3.4.3 Restart feedback signal option settings
If at least one detection field in use is configured as Manual or Safe manual restart (in Settings > Restart function), the behavior of the Restart feedback signal depends on the option selected:

Option Standard
Pulsed

Restart feedback signal behavior
l The selected output is activated (ON-state) if there is no more motion within at least one detection field configured as Manual or Safe manual restart. The ON-state lasts as long as there is an absence of motion within one or more detection fields (configured as Manual or Safe manual restart) and until the restart signal is activated on the selected input.
l The selected output remains in OFF-state if: o none of the detection fields (configured as Manual or Safe manual restart) are ready to be restarted, and as long as a motion (or a fault) is detected within at least one detection field (configured as Manual or Safe manual restart), or o as long as no motion is detected within any detection fields configured as Manual or Safe manual restart, but none can be restarted yet.
l The selected output is activated (ON-state) if there is no more motion within at least one detection field configured as Manual or Safe manual restart. The ON-state lasts as long as there is an absence of motion within one or more detection fields (configured as Manual or Safe manual restart) and until the restart signal is activated on the selected input.
l The selected output switches continuously between ON-state and OFF-state if none of the detection fields (configured as Manual or Safe manual restart) are ready to be restarted, and as long as a motion (or a fault) is detected within at least one detection field (configured as Manual or Safe manual restart)
l The selected output remains in OFF-state as long as no motion is detected within any detection fields configured as Manual or Safe manual restart, but none can be restarted yet.

3.4.4 Detection signal group settings
Each detection field of each sensor can be assigned to a group to associate them with the same safety output.
Through the Inxpect Safety application (in Settings > Detection field groups), each detection field of each sensor can be associated with a group or both groups. By default, a detection field does not belong to any group.
WARNING! Consider the detection field dependency choice during the group’s configuration. See “Detection fields dependency and detection signal generation” on page 39

Example
It is possible to configure that the following detection fields belong to group 1:
– Detection field 1 of Sensor 1
– Detection field 1 of Sensor 3
– Detection field 2 of Sensor 1
By doing so, a specific output assigned to Detection signal group 1 will switch to the OFF-state when a movement is detected in one of these detection fields.
3.4.5 Output configurations
The system installer can decide to configure the system as follows:
l two dual channel safety outputs (e.g., Detection signal 1 and Detection signal 2, usually alarm and warning signals)
l one dual channel safety output (e.g., Detection signal 1) and two single channel output (e.g., System diagnostic signal and Muting enable feedback signal)
l each output as a single output (e.g., System diagnostic signal, Muting enable feedback signal and Restart feedback signal)
WARNING! To use Inxpect SRE 200 Series for a category 3 safety system, both the channels of a safety output must be connected to the safety system. Configuring a safety system with only one channel safety output may result in serious injuries due to an output circuit fault and a failure of the machine to stop.

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3.4.6 Dual channel safety output configuration
The dual channel safety output is automatically obtained by the Inxpect Safety application and it only matches the single OSSD outputs as follows:
l OSSD 1 with OSSD 2 l OSSD 3 with OSSD 4
In the dual channel safety output, the output status is the following: l activated output (24 V DC): no motion detected and normal functioning l deactivated output (0 V DC): motion detected in the detection field or failure detected in the system
The idle signal is 24 V DC, periodically shortly pulsed to 0 V for the receiver to detect short-circuits to either 0 V or 24 V. The pulse duration at 0 V (TL) can be set at 300 s or 2 ms through the Inxpect Safety application (Settings > Digital Input-Output > OSSD Pulse width).
Note: the devices connected to the OSSD should not respond to these temporary, self-diagnostic 0 V pulses of the signal.

For details, see “Technical references” on page 104.
3.4.7 OSSD diagnostic checks
Per default, the OSSD Diagnostic check (e.g., for short-circuits) is deactivated. This check can be activated through the Inxpect Safety application (Settings > Digital Input-Output).
If activated, the control unit will monitor:
l short-circuit between OSSDs l 24 V short-circuit l open circuit (only trips on demand, i.e., when the safety function is activated on the transition from 24 V to
GND)
Note: the short-circuit to GND (fail-safe fault) is always monitored even if the OSSD diagnostic check is deactivated.
WARNING! If an external common cause failure leads to a 24 V short-circuit on both the OSSDs, the control unit cannot communicate the safe state condition via OSSD. The integrator is responsible for avoiding this condition by monitoring the test pulses generated periodically on the OSSDs.

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3.4.8 External resistor for OSSD outputs
To guarantee the correct connection between the OSSDs of the control unit and an external device, it may be necessary to add an external resistor.
If the pulse width set (OSSD Pulse width) is 300 s, it is strongly recommended to add an external resistor to guarantee the discharge time of the capacitive load. If it is set at 2 ms, an external resistance must be added if the resistor of the external load is greater than the maximum resistive load allowed (see “Technical data” on page 105).
Below are some standard values for the external resistor:

300 s 2 ms

OSSD Pulse width value

1 k 10 k

External resistor (Re)

3.5 Sensors

3.5.1 5 meters range sensors
These are the main characteristics of the sensors:

NOTICE: the sensors connected to the control unit must all be of the same type (e.g., all 5 meters range sensors or all 9 meters range sensors).

Model Type Access maximum distance

S201A

– 5 m (16.4 ft)

S201A -W

S203A -W

Restart maximum distance
5 m (16.4 ft)

Detection speed (Access detection function)

Angular coverage

(horizontal)

l Stationary use: [0.1, 1.6] m/s ([0.33, From 10° to

5.25] ft/s)

100°

l Mobile use:

o for detection distance less than

or equal to 4 m (13.12 ft): [0.1, 3]

m/s ([0.33, 9.84] ft/s)

o for detection distance greater

than 4 m (13.12 ft): [0.1, 2] m/s

([0.33, 6.56] ft/s)

Angular coverage
(vertical)
20° (Downward offset 2.5°)
20° (Downward offset 2.5°)
12° (Downward offset 1°)

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3.5.2 Comparison between 3.x sensors and 5.x sensors
Based on the firmware version, the sensors can be grouped as follows:

3.x sensors
5.x sensors

Model Type S201A –
S201A -W S203A -W

Configuration of the field of view
l detection field (from 1 to 4) l angular coverage l detection distance
l detection field (from 1 to 4) l angular coverage l detection distance l classic and corridor shape, see “Advanced field of view (5.x sensors only)” on
page 57.

3.5.3 Functions
The sensors perform the following functions: l Detect motion in their field of view. l Send the motion detection signal to the control unit through CAN bus. l Signal to the control unit through CAN bus the failures or faults detected on the sensor during diagnostics.
3.5.4 2-axes bracket

Part A B C D E F

Description Sensor Status LED Tamper-proof screws to position the sensor at a specific angle around x-axis (tilt 10° steps) Mounting bracket Screw to position the sensor at a specific angle around y-axis (pan 10° steps) Connectors for connecting the sensors in a chain and to the control unit

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3.5.5 3-axes bracket

Part A B C D E F G

Description Sensor Status LED Tamper-proof screws to position the sensor at a specific angle around x-axis (tilt 10° steps) Mounting bracket Tamper-proof screw to position the sensor at a specific angle around y-axis (pan 10° steps) Connectors for connecting the sensors in a chain and to the control unit Tamper-proof screw to position the sensor at a specific angle around z-axis (roll 10° steps)

3.5.6 Status LED
Status Steady blue Flashing blue Purple Red

Meaning Sensor is working. No motion detected. Sensor is detecting motion. Not available if the sensor is in muting. Firmware update conditions (see “Sensor LED” on page 87) Error conditions (see “Sensor LED” on page 87)

3.6 Inxpect Safety application
3.6.1 Functions
The application permits the following main functions to be performed:
l Configure the system. l Create the configuration report. l Check system functioning. l Download system log.
3.6.2 Inxpect Safety application usage
To use the application, the control unit must be connected to a computer with a data USB cable or, if the Ethernet port is available, an Ethernet cable. The USB cable allows to configure the system locally, whereas the Ethernet cable allows to do it remotely.
The Ethernet communication between the control unit and the Inxpect Safety application is secured by the most advanced security protocols (TLS).

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3.6.3 Authentication
The application can be downloaded free of charge at https://tools.inxpect.com.
Different user levels are available. The Admin user is in charge of user management. All the passwords can be set through the application and then saved on the control unit.

3.6.4 User levels
These are the functions available for each user level:

Read system configuration
Validation
Download log files
Sensor setup (e.g., Node ID) and configuration
Digital I/O configuration
Backup / Restore configuration
Network and Fieldbus settings (Network and MODBUS parameters, PROFIsafe F-addresses and endianness, FSoE Safe Address), and System labels
Control unit firmware upgrade
User management
SD Backup and SD Restore (if available)
Technical support and maintenance
Debug and statistical information

Observer x –
–

Expert x x x –
–
–

Engineer x x x x x x
–
–

Admin x x x x
x x
x

Service* x x x –
–
–

–

Note*: Service user can be enabled/disabled by the administrator. Since only Inxpect technicians are allowed to access as Service, the Service user is protected by an activation code.

3.6.5 Main menu

Page Dashboard
Configuration

Function
Display main information on the configured system.
Note: the messages show the same information in the log files. For the meanings of the messages, see the chapters on logs in “Troubleshooting” on page 85.
Define the monitored area.

Configure the sensors, their shape (for 5.x sensors), and the detection fields.

Configure the sensors and the detection fields. Define the dynamic configurations. Choose the safety working mode. Enable the static object detection option. Set the restart timeout.

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Page Settings
Admin
Validation REFRESH CONFIGURATION
User Control unit

Function Configure the sensor groups. Choose the detection fields dependency. Enable the anti-tampering functions. Synchronize more control units. Configure the inputs and outputs function. Perform the configuration backup and load a configuration. Download the log. Perform the sensor Node ID assignment. Other general functions. Configure and manage the users. Enable the SD Backup and the SD Restore. Perform a factory reset. Configure, show, and change the Network parameters (if available). Configure, show and change the MODBUS parameters (if available). Configure, show and change the Fieldbus parameters (if available). Set labels for control units and sensors. Start the validation procedure. Note: the messages shown are those in the log file. To know the meaning of the messages, see the chapters on logs in “Troubleshooting” on page 85. Refresh configuration or ignore unsaved changes.
Change user profile. Modify account settings. Retrieve control unit information. Close the connection with the control unit and allow it to connect to another control unit. Change the language.

3.7 Fieldbus communication (PROFIsafe)
3.7.1 PROFIsafe support
The safety communication using PROFIsafe is available on all the control units provided with the PROFIsafe interface. For details, see “Control units” on page 16.
3.7.2 Communication with the machinery
The Fieldbus makes the following actions possible: l Choose from 1 to 32 preset configurations dynamically. l Read the status of the inputs. l Control the outputs. l Read the target data. l Mute the sensors. l Enable the restart signal. l Enable the system recondition signal.
For details, see the PROFIsafe communication Reference guide.

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3.7.3 Input data coming from the PLC
If neither digital input nor OSSD is configured as Fieldbus controlled, the behavior of the input data coming from the PLC is as described below:

Condition IOPS (PLC provider status) = bad Connection loss
After power-up

Input data coming from the PLC
the last valid value of the input variable is retained
the last valid value of the input variable is retained
the initial values (set to 0) are used for the input variables

System behavior
the system keeps working in its normal operating state
the system keeps working in its normal operating state
the system keeps working in its normal operating state

If at least one digital input or OSSD is configured as Fieldbus controlled, the behavior of the input data coming from the PLC is as described below:

Condition IOPS (PLC provider status) = bad Connection loss
After power-up

Input data coming from the PLC the last valid value of the input variable is retained the last valid value of the input variable is retained
the initial values (set to 0) are used for the input variables

System behavior
the system keeps working in its normal operating state
the system transits to safe state, deactivating the OSSDs, until the connection is re-established.
the system remains in a safe state with the OSSDs deactivated, until the input data are passivated.

3.7.4 Data exchanged through PROFIsafe
The following table details the data exchanged through the Fieldbus communication:
WARNING! The system is in the safe state if the control unit status byte of the System configuration and status module PS2v6 or PS2v4 is different from “0xFF”.

Data type Safe
Safe
Safe

Description
SYSTEM STATUS DATA Control unit: l internal status l status of each of the four OSSDs l status of each single channel and dual channel input

Communication direction
from the control unit

Sensor:
l status of each detection field (target detected or not) or error status
l status of static object detection option l muting status
SYSTEM SETTING COMMAND
Control unit:
l set the ID of the dynamic configuration that shall be activated l set the status of each of the four OSSDs l save the reference for the anti-rotation around axes l enable the restart signal l enable the system recondition signal

to the control unit

Sensor:
l set the muting status DYNAMIC CONFIGURATION STATUS
l ID of the dynamic configuration currently active l signature (CRC32) of the dynamic configuration ID currently active

from the control unit

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Data type Safe Unsafe
Unsafe

Description
TARGET DATA l Current distance and angle of the targets detected by each sensor.
For each detection field of each sensor, only the closest target to the sensor is considered. DIAGNOSTIC DATA Control unit: l internal status with an extended description of the error condition

Communication direction
from the control unit
from the control unit

Sensor: l internal status with an extended description of the error condition SYSTEM STATUS AND TARGET DATA

from the control unit

3.8 Fieldbus communication (Safety over EtherCAT® – FSoE)
3.8.1 FSoE support
The safety communication using FSoE is available on all the control units provided with the FSoE interface. For details, see “Control units” on page 16.
3.8.2 Communication with the machinery
The Fieldbus makes the following actions possible: l Choose dynamically from 1 to 32 preset configurations. l Read the status of the inputs. l Control the outputs. l Mute the sensors. l Enable the restart signal. l Enable the system recondition signal.
For details, see the FSoE communication Reference guide.
3.8.3 Data exchanged through FSoE
The following table details the data exchanged through the Fieldbus communication:
WARNING! The system is in the safe state if Byte 0 of the selected TxPDO has at least one of its bits equal to 0, except for bit 4, which can assume any value.

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Data type Safe
Safe
Safe Unsafe Unsafe

Description
SYSTEM STATUS DATA Control unit: l internal status l status of each of the four OSSDs l status of each of single channel inputs and dual channel inputs

Communication direction
from the control unit

Sensor:
l status of each detection field (target detected or not) or error status
l status of Static object detection for each detection field l muting status
SYSTEM SETTING COMMAND
Control unit:
l set the ID of the dynamic configuration that shall be activated l set the status of each of the four OSSDs l enable the system recondition signal l enable the restart signal

to the control unit

Sensor:
l set the muting status
DYNAMIC CONFIGURATION STATUS
l ID of the dynamic configuration currently active l signature (CRC32) of the dynamic configuration ID currently
active
DIAGNOSTIC DATA
Control unit:
l internal status with an extended description of the error condition

from the control unit from the control unit

Sensor:
l internal status with an extended description of the error condition
SYSTEM STATUS

from the control unit

3.9 MODBUS communication
3.9.1 MODBUS support
The safety communication using MODBUS is available on all the control units provided with the MODBUS interface. For details, see “Control units” on page 16.
3.9.2 MODBUS communication enabling
In the Inxpect Safety application, click on Admin > MODBUS Parameters and check that the feature is enabled (ON). Within the Ethernet network, the control unit acts like a server. The client must send requests to the IP address of the server on the MODBUS listening port (default port is 502). To show and change the address and the port, click on Admin > Network Parameters and Admin > MODBUS Parameters.

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3.9.3 Data exchanged through MODBUS
The following table details the data exchanged through the MODBUS communication:

Data type Unsafe
Unsafe Unsafe Unsafe

Description
SYSTEM STATUS DATA
Control unit:
l internal status l status of each of the four OSSDs l status of each single channel and dual channel input l revision information

Communication direction
from the control unit

Sensor:
l status of each detection field (target detected or not) or error status
l muting status l revision information
DYNAMIC CONFIGURATION STATUS
l ID of the dynamic configuration currently active l signature (CRC32) of the dynamic configuration ID currently active
TARGET DATA
l Current distance and angle of the targets detected by each sensor. For each detection field of each sensor, only the closest target to the sensor is considered.
DIAGNOSTIC DATA
Control unit:
l internal status with an extended description of the error condition

from the control unit
from the control unit
from the control unit

Sensor: l internal status with an extended description of the error condition

3.10 System configuration
3.10.1 System configuration
The control unit parameters have their own default values that can be modified via the Inxpect Safety application (see “Configuration application parameters” on page 118). When a new configuration is saved, the system generates the configuration report.
Note: after a physical change of the system (e.g., new sensor installed), the system configuration must be updated and a new configuration report must be generated, too.
3.10.2 Dynamic system configuration
Inxpect SRE 200 Series allows a real-time adjustment of the most important system parameters, providing the means to switch dynamically among different preset configurations. Via the Inxpect Safety application, once the first system configuration (default configuration) has been set, it is possible to set alternative presets to allow a dynamic real-time reconfiguration of the monitored area. The alternative presets are 7 through digital input and 31 through Fieldbus (if available).
3.10.3 Dynamic system configuration parameters
These are the programmable parameters for each sensor:
l detection field (from 1 to 4)
These are the programmable parameters for each detection field: l angular coverage l detection distance

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l safety working mode (Access detection and restart prevention or Always-on access detection) (see “Safety working modes and safety functions” on page 42)
l only for 5.x sensors: classic and corridor shapes (see “Advanced field of view (5.x sensors only)” on page 57)
l static object detection option (see “Restart prevention function: static object detection option” on page 44) l restart timeout
All the remaining system parameters cannot be changed dynamically and are considered static.
3.10.4 Dynamic system configuration switch
One of the preset configurations can be activated dynamically either through the digital inputs (Dynamic configuration switch) or through the safety Fieldbus (if available).
WARNING! If one or more digital inputs are configured as “Dynamic configuration switch”, a switch through the safety Fieldbus is not considered.

3.10.5 Dynamic configuration through the digital inputs
To activate one of the preset configurations dynamically, one or both the digital inputs of the control unit can be used. The result is the following:

If…
only one digital input is configured as Dynamic configuration switch
both digital inputs are configured as Dynamic configuration switch and the encoded channel option is disabled
both digital inputs are configured as Dynamic configuration switch and the encoded channel option is enabled

Then it is possible to switch dynamically between… two preset configurations (see “Case 1” below and “Case 2” below) four preset configurations (see “Case 3” on the next page)
eight preset configurations (see “Case 4” on the next page)

Note: the configuration change is safe because two-channel inputs are used.
Note: if the encoded channel option is enabled, any invalid combination that lasts more than 33 ms results in a fault on the inputs that brings the system to a safe state.

Case 1 The first digital input has been configured as Dynamic configuration switch.

Dynamic configuration
number

1

2

Input 1 (CH1 and CH2)
0 1

Input 2
–

0 = signal deactivated; 1 = signal activated

Case 2 The second digital input has been configured as Dynamic configuration switch.

Dynamic configuration
number

1

2

Input 1
–

Input 2 (CH1 and CH2)
0 1

0 = signal deactivated; 1 = signal activated

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Case 3
Both digital inputs have been configured as Dynamic configuration switch, and the encoded channel option is disabled.

Dynamic configuration
number

1

2

3

4

Input 1 (CH1 and CH2)
0 1 0 1

Input 2 (CH1 and CH2)
0 0 1 1

0 = signal deactivated; 1 = signal activated

Case 4
Both digital inputs have been configured as Dynamic configuration switch, and the encoded channel option is enabled.
The valid combinations are only those that differ at least by two values, and they are listed below:

Dynamic configuration
number #1 #2 #3 #4 #5 #6 #7 #8

Input 1

CH1

CH2

Input 2

CH1

CH2

0 = signal deactivated; 1 = signal activated

3.10.6 Dynamic configuration through the safety Fieldbus
To activate one of the preset configurations dynamically, connect an external safety PLC that communicates through the safety Fieldbus to the control unit. This makes it possible to dynamically switch between all the preset configurations, therefore up to 32 different configurations. For all the parameters used for each configuration, see “Dynamic system configuration” on page 34.
For details about the supported protocol, please refer to the Fieldbus manual.
WARNING! Before activating one of the preset configurations through the safety Fieldbus, ensure that none of the digital inputs is configured as Dynamic configuration switch; otherwise, the Inxpect SRE 200 Series ignores all the switches made through the safety Fieldbus.
3.10.7 Safe configuration change
The change of the configuration takes place safely both on stationary and moving machinery. The sensor always monitors the entire monitored area and when it receives a request to change to a configuration with a longer detection field, it immediately reverts to safe state if people are present in such a field.

Functioning principles

Contents
This section includes the following topics:

4.1 Sensor functioning principles

4.2 Detection fields

4.1 Sensor functioning principles
4.1.1 Introduction
The sensor is an FMCW (Frequency Modulated Continuous Wave) radar device based on a proprietary detection algorithm. It is also a multi-target sensor that sends pulses and receives information, analyzing the reflection of the nearest moving target that it encounters within each detection field. The sensor can detect the current distance and the angle of each target. Each sensor has its own fieldset. The fieldset corresponds to the structure of the field of view, which is composed of detection fields (see “Detection fields” below).
4.1.2 Factors that influence the sensor field of view and object detection
WARNING! The presence of conductive material on the sensor could affect its field of view and, thus, object detection. For proper and safe system operation, validate the system under this condition.
4.1.3 Factors that influence the reflected signal
The signal reflected by the object depends on several characteristics of the same object: l Metallic objects have a very high reflection coefficient, while paper and plastic reflect only a small portion of the signal l The greater the surface exposed to the radar, the greater the reflected signal l All other factors being equal, objects positioned directly in front of the radar generate a more significant signal than objects to the side l Motion speed l Inclination
All these factors have been analyzed for a human body during the safety validation of Inxpect SRE 200 Series and cannot lead to a dangerous situation. These factors may occasionally influence the behavior of the system causing spurious activation of the safety function.
4.1.4 Detected and missed objects
The signal analysis algorithm considers only those objects that move within the field of view, ignoring completely static objects (if the static object detection option is disabled). Furthermore, a falling objects algorithm allows ignoring undesired alarms generated by small work waste products that fall in the first part of the sensor’s field of view.
4.1.5 Interference with pacemakers or other medical devices
Radiation from Inxpect SRE 200 Series does not interfere with pacemakers or other medical devices.
4.2 Detection fields
4.2.1 Introduction
The field of view of each sensor can be composed of up to four detection fields. Each of the four detection fields has a dedicated detection signal.

4. Functioning principles
WARNING! Configure the detection fields and associate them with the dual channel safety outputs according to the risk assessment requirements.
4.2.2 Detection field parameters
These are the programmable parameters for each detection field: l angular coverage l detection distance l safety working mode (Access detection and restart prevention or Always-on access detection) (see “Safety working modes and safety functions” on page 42) l restart timeout l static object detection option l only for 5.x sensors, Advanced field of view shape
4.2.3 Angular coverage
The angular coverage is in a range from 10° to 100° for the entire field of view.
The angular coverage of the detection field must be wider than, or equal to, the angular coverage of the following detection fields.

4.2.4 Detection distance
The detection distance of the first detection field starts from the sensor. The detection distance of one field starts where the one of the previous field ends.

4. Functioning principles
The detection distance of one or more fields can be 0 (e.g., detection field 3). The first detection field with a detection distance other than 0 (e.g., detection field 1) must have a minimum detection distance of 500 mm (for 3.x sensors) or 200 mm (for 5.x sensors).

4.2.5 Detection fields dependency and detection signal generation
If a sensor detects motion within a detection field, its detection signal changes status and, when configured, the related safety output is deactivated. The behavior of the outputs related to the following detection fields depends on the detection field dependency set:

If…

Then…

the Dependent mode is set and if a sensor detects motion within a detection field, all the outputs related to

thus detection fields are

its following detection fields are deactivated too.

dependent on each other

Example

Detection field configured: 1, 2, 3

Detection field with target detected: 2

Detection field in alarm status: 2, 3

the Independent mode is set and thus detection fields are
independent from each other

if a sensor detects motion within a detection field, only the output related to that detection field is deactivated.
Example Detection field configured: 1, 2, 3 Detection field with target detected: 2 Detection field in alarm status: 2

WARNING! If detection fields are independent, an evaluation of the safety of the monitored area must be performed during the risk assessment. The blind area generated by a target can prevent the sensor from detecting targets in the following detection fields.

4. Functioning principles
In this example, both detection field 1 and 2 generate a detection signal, for target [A] and [B] respectively.
In this example, detection field 1 generates a detection signal for target [A] but target [B] could not be detected.
In the Inxpect Safety application, click on Settings > Advanced > Detection field dependency to set the dependency mode of the detection fields.

4. Functioning principles
4.2.6 Independent detection fields: a use case
It can be useful to set the detection fields as independent, for example, if there is a scheduled temporary motion of an object in a detection field. An example can be a robotic arm moving from right to left within the detection field 1 only during a specific phase of the operative cycle.
In this case, it is possible to ignore the detection signal in the detection field 1, thus avoiding unnecessary downtime.
WARNING! Evaluate the safety of the monitored area during risk assessment before deciding to ignore the detection signal of the detection field 1. WARNING! The blind area generated by the moving robotic arm can prevent the sensor from detecting targets in the following other detection fields for a time interval. This time must be considered when defining the detection distance for detection field 2.

Safety functions

Contents
This section includes the following topics:

5.1 Safety working modes and safety functions

5.2 Safety working mode: Access detection and restart prevention (default)

5.3 Safety working mode: Always-on access detection

5.4 Restart prevention function: static object detection option

5.5 Features of the restart prevention function

5.1 Safety working modes and safety functions

5.1.1 Introduction
Each detection field of each sensor can perform the following safety working modes: l Access detection and restart prevention l Always-on access detection
Each safety working mode is composed of one or both of the following safety functions:

Function

Description

Access detection The machinery is reverted into a safe status when one or more persons enter the dangerous area.

Restart prevention

The machinery is prevented from restarting if people are in the dangerous area.

5.1.2 Safety working modes
Via the Inxpect Safety application, you can select which safety working mode each sensor will employ for each of its detection fields:
l Access detection and restart prevention (default): o The sensor performs the access detection function when it is in normal operation (No alarm status). o The sensor performs the restart prevention function when it is in alarm status (Alarm status).
l Always-on access detection: o The sensor always performs the access detection function (No alarm status + Alarm status).
5.1.3 Access detection speed limits
The speed limits of the movements detected by the access detection function are reported below:

Application type
Stationary
Mobile

Minimum speed

Maximum speed

0.1 m/s (0.33 ft/s)
0.1 m/s (0.33 ft/s)

1.6 m/s (5.25 ft/s)
l for detection distance less than or equal to 4 m (13.12 ft): 3 m/s (9.84 ft/s)
l for detection distance greater than 4 m (13.12 ft): 2 m/s (6.56 ft/s)

5. Safety functions

5.2 Safety working mode: Access detection and restart prevention (default)

5.2.1 Introduction
This safety working mode is composed of the following safety functions:
l access detection l restart prevention

5.2.2 Safety function: access detection
Access detection allows what follows:

When…
no motion is detected in the detection field
motion is detected in the detection field (see “Access detection speed limits” on the previous page)

Then…
the safety outputs remain active
l the safety outputs are deactivated l the restart prevention function is activated

5.2.3 Safety function: restart prevention
The restart prevention function remains active and the safety outputs deactivated as long as motion is detected in the detection field, or, with the static object detection option enabled (see “Restart prevention function: static object detection option” on the next page), as long as a static object is detected in the detection field.
The sensor can detect micro-movements of just a few millimeters, such as breathing movements (with normal breathing or a short apnea) or the movements necessary for a person to remain in balance in an upright or squatting position.
The system sensitivity is higher than the sensitivity that characterizes the access detection function. For this reason, the system reaction to vibrating and moving parts is different.
The sensor guarantees the detection of people moving at any speed from 0 up to 1.6 m/s (5.25 ft/s), provided that the guidelines described in “Sensor positioning guidelines” on the next page are fulfilled.
Note: a stationary person still has static residual movements that the radar can detect.
WARNING! When the restart prevention function is active the monitored area may be affected by the position and inclination of the sensors, as well as by their installation height and angular coverage (see “Sensor position” on page 53).

5.2.4 Restart timeout parameter
When the system does not detect motion anymore or, with static object detection option enabled, no static object is detected, the OSSD outputs remain in OFF-state for the time set in the Restart timeout parameter.
The default and minimum certified value is 4 s (Certified Restart Timeout, CRT) while the maximum value is 60 s.
WARNING! The static object detection option allows reducing the value of the Restart timeout parameter and therefore it might affect the reliability of the restart prevention function (see “Restart timeout parameter” on the next page).

5.3 Safety working mode: Always-on access detection

5.3.1 Safety function: access detection
This is the only safety function available for the Always-on access detection. Access detection allows what follows:

When… no motion is detected in the detection field motion is detected in the detection field

Then…
the safety outputs remain active
l the access detection function remains active l the safety outputs are deactivated l the sensitivity remains as it was before the motion
detection

5. Safety functions
WARNING! If the Always-on access detection is selected, additional safety measures must be introduced to ensure the restart prevention function.
5.3.2 TOFF parameter
If the safety working mode is Always-on access detection, when the system does not detect motion anymore, the OSSD outputs remain in OFF-state for the time set in the TOFF parameter. The TOFF value can be set from 0.1 s to 60 s.
5.4 Restart prevention function: static object detection option
5.4.1 Introduction
The static object detection option allows the restart prevention function also to detect static objects in the dangerous area.
NOTICE: the ability to detect an object depends on the RCS of the object. The static object detection option does not guarantee 100% detection of static objects.
5.4.2 Availability
The static object detection option is available for: l control unit firmware version 1.5.0 or later, and l sensor firmware version 3.0 or later.
5.4.3 Possible applications
This option can be useful if the sensor is installed on moving elements (see “Installations on moving elements (Mobile application)” on page 63) or to prevent the restart of a robot that could bump into a static object in the area temporarily.
5.4.4 Operation
The option can be enabled for each detection field of each sensor with the safety working mode set to Access detection and restart prevention. Enable the option only if the detection field is free of static objects; otherwise, the system would never reactivate the detection signals after a motion is detected in the area.
5.4.5 Settings
It is possible to increase or decrease the sensitivity of the static object detection of the sensors through the Inxpect Safety application (Settings > Advanced > Static object detection sensitivity)
5.4.6 Restart timeout parameter
With the static object detection option enabled, the Restart timeout parameter’s minimum value is 0.1 s.
WARNING! If the Restart timeout is set to a value less than 4 s, the sensor is no longer able to detect breathing movement or the movements necessary for a person to remain in balance in an upright or a squatting position. Set a value less than 4 s only for areas where people have no access.
5.5 Features of the restart prevention function
5.5.1 Sensor positioning guidelines
The restart prevention function is effective if the sensor can detect a person’s movements or their static residual movements. To detect people who are not standing or squatting, it is important that the sensor can clearly detect the person’s chest. Particular attention should be paid to the following situations:
l There are objects that limit or prevent the sensor from detecting motion. l The risk assessment requires the detection of a lying person and the sensor is installed at a height below
2.5 m (8.2 ft) or with an inclination lower than 60° downward. l The sensor does not detect a sufficient portion of the body or does not properly detect the person’s chest.

5. Safety functions
A validation procedure (see “Validate the safety functions” on page 77) must be performed when one or more of the above conditions are met. If the conditions described above limit the performance of the sensor, take the following steps to reach an appropriate level of performance:
l Increase the Restart timeout parameter. l Change the position of the sensors. l Add more sensors.
If one or more of the above actions are taken, it is recommended to perform a validation procedure (see “Validate the safety functions” on page 77). Below are some examples of situations where the above conditions are not met (X) and how to properly position the sensor (). These examples are not meant to be exhaustive.

5.5.2 Types of managed restart
NOTICE: it is the responsibility of the machinery manufacturer to assess if automatic restart can guarantee the same level of safety as manual restart (as defined in standard EN ISO 13849-1:2015, section 5.2.2).
For each detection field independently, the system manages three types of restart:

Type Automatic Manual Safe manual

Conditions for enabling machinery restart

Safety working mode allowed

The time interval set through the Inxpect Safety application (Restart All timeout) has passed since the last motion detection*.

The Restart signal was received correctly** (see “Restart signal (dual channel, redundancy mode coherent)” on page 125).

Always-on access detection

l The time interval set through the Inxpect Safety application

Access detection

(Restart timeout) has passed since the last motion detection* and restart

and

prevention

l The Restart signal was received correctly** (see “Restart signal

+ System recondition (dual channel, redundancy mode coherent)”

on page 128).

WARNING! If the Automatic restart is set with the Safety working mode Always- on access detection, the restart prevention safety function is not performed, and consequently, the system does not guarantee the detection of a person within the monitored area.
Note*: machinery restart is enabled if no motion is detected up to 35 cm (13.8 in) beyond the detection field.
Note**: (for all types of restart) other dangerous system statuses may prevent the restart of the machinery (e.g., diagnostic fault, sensor masking, etc.)

5. Safety functions

5.5.3 Precautions for preventing unexpected restarting
To prevent unexpected restarting, if the sensor is installed at a height of less than 15 cm (5.9 in) from the ground to its center, a minimum distance of 50 cm (20 in) from the sensor must be guaranteed.
Note: if the sensor is installed at a height of less than 15 cm (5.9 in) from the ground to its center, an option is to enable the masking function to generate a system error if a person stands in front of the sensor.
5.5.4 Configure the restart function
WARNING! If the Restart signal function has been enabled both through the safety Fieldbus and the digital inputs, the functionality can be activated from both of them.

Type Automatic Manual
Safe manual

Procedure
1. In the Inxpect Safety application in Settings > Restart function, select Automatic. 2. In the Inxpect Safety application, in Configuration for each detection field in use with
automatic restart, select the desired Safety working mode and set the Restart timeout (or the TOFF parameter, if present).
1. In the Inxpect Safety application in Settings > Restart function, select Manual. 2. If there is a digital input configured as Restart signal (Settings

Digital Input-
Output), connect the machinery button for the restart signal as convenient (see “Electrical connections” on page 111). 3. To use the Fieldbus communication for the restart signal, make sure that no digital input is configured as Restart signal (Settings > Digital Input-Output). See the Fieldbus protocol for details. 4. In the Inxpect Safety application, in Configuration for each detection field in use with manual restart, set the TOFF parameter value.
Note: the Safety working mode is automatically set to Always-on access detection for all the detection fields in use with manual restart.
1. In the Inxpect Safety application in Settings > Restart function, select Safe manual. 2. If there is a digital input configured as Restart signal (Settings > Digital Input-
Output), connect the machinery button for the restart signal as convenient (see “Electrical connections” on page 111). 3. To use the Fieldbus communication for the restart signal, make sure that no digital input is configured as Restart signal (Settings > Digital Input-Output). See the Fieldbus protocol for details. 4. In the Inxpect Safety application, in Configuration for each detection field in use with safe manual restart, select the Safety working mode among those allowed and set the Restart timeout parameter value.

Other functions

Contents
This section includes the following topics:

6.1 Muting

6.2 Anti-tampering functions: anti-rotation around axes

6.3 Anti-tampering functions: anti-masking

6.4 Auto-resume (5.x sensors only)

6.5 Electromagnetic Robustness

6.1 Muting

6.1.1 Description
The muting function is an additional safety-related function that inhibits the sensing capability of the sensor on which it is activated. It can be activated for a specific sensor or for a group of sensors. This results in keeping the ON-state of the OSSD or the safety Fieldbus even when the muted sensors detect motion.
When the muting function is enabled, its effective activation on one or more sensors occurs only as soon as the conditions permit (see “Muting” above).
6.1.2 Muting enabling
The muting function can be enabled through digital input (see “Enable muting signal characteristics” on the next page) or safety Fieldbus (if available).
WARNING! If the muting function has been enabled through the safety Fieldbus and the digital inputs, only the digital inputs enabling is considered for the function.

WARNING! When the sensor is in muting, no sensor error is available (see” ERROR events (sensor)” on page 97).

Through the safety Fieldbus (if available) the muting function can be enabled for each sensor individually.
Through digital inputs the muting function can be enabled for all the sensors simultaneously or only for a group of sensors. Up to two groups can be configured, each associated with a digital input.
Through the Inxpect Safety application, the following must be defined:
l for each input, the group of managed sensors l for each group, the sensors that belong to it l for each sensor, whether it belongs to a group or not
Note: if the muting function is enabled for one sensor, it is enabled for all the detection fields of the sensor, regardless if the detection fields are dependent or independent and the anti-tampering functions are disabled for that sensor.
See “Configure the inputs and outputs” on page 76.

6.1.3 Muting activation conditions
The muting function is activated on a specific sensor only in the following conditions:
l All the detection fields involved have no active detection signal, no active static object detection signal, and the restart timeout has expired for all of them.
l There is no tampering signal or fault signal for that sensor.
When the muting is enabled for a group of sensors, the function is activated for each sensor as soon as there is no detection in its monitored area, regardless of the status of the other sensors.
WARNING! Enable the muting signal on sensors monitoring the same dangerous area once the whole area is safe and nobody can access it. If the muting is enabled when some of the sensors are still detecting a movement, a person could move to a space monitored by a muted sensor, compromising the safety of the whole area.

6. Other functions
6.1.4 Enable muting signal characteristics
The muting function is enabled only if both logic signals of the dedicated input meet certain characteristics. Below is a graphic representation of the signal characteristics.

In the Inxpect Safety application, in Settings > Digital Input-Output it is necessary to set the parameters that define the signal characteristics. Note: with pulse duration = 0, it is sufficient that the input signals are at high logic level (1) to enable muting.
6.1.5 Muting status
Any output dedicated to the muting status (Muting enable feedback signal) is activated if at least one of the groups of sensors is in muting. NOTICE: it is the responsibility of the machinery manufacturer to assess whether the indication of the muting status is necessary (as defined in section 5.2.5 of EN ISO 13849-1:2015 standard).
6.2 Anti-tampering functions: anti-rotation around axes
6.2.1 Anti-rotation around axes
The sensor detects rotation around its axes. Note: the axes are those represented in the figure below, regardless of the installation position of the sensor.

When the system configuration is saved, the sensor also saves its position. Later, if the sensor detects changes in rotation around these axes, it sends a tamper alert to the control unit. Upon reception of a tampering signal, the control unit deactivates the safety outputs.

6. Other functions

Note: when the position is modified with respect to the saved references (i.e., when a sensor is rotated) and the anti-rotation around axes function is enabled, the Inxpect SRE 200 Series detects the tampering and sends the message within 5 s.
The sensor can detect changes in rotation around the x-axis and the z-axis even if it is switched off. The tamper alert is sent to the control unit at the following switch on.
A change in rotation around the y-axis is detected only if it is faster than 5° every 10 s and if the system is on.
WARNING! The tamper alert due to a rotation around the y-axis is reset at the next switch on. For proper and safe operation of the system, validate the system again.

6.2.2 Enable the anti-rotation around axes function
The anti-rotation around axes function is disabled by default.
WARNING! If the function is disabled, the system cannot signal a change in the rotation of the sensor around the axes and, therefore, any changes in the monitored area. See “Checks when the anti-rotation around axes function is disabled” below.
WARNING! Take precautions to prevent tampering, if the function is disabled for at least one axis of one sensor and if the rotation around that axis is not protected with tamper-proof screws.

The function can be enabled and configured for each axis of each sensor individually. In the Inxpect Safety application, in Settings > Anti-tampering, click on the specific option to enable the function for a sensor.

6.2.3 When to enable
Enable the anti-rotation around axes function only if it is necessary to detect a change in the rotation of a sensor around a specific axis.
It is strongly suggested not to enable the function if the sensor is installed on a moving object (e.g., carriage, vehicle) whose motion could change the sensor inclination (e.g., motion on a slope or in a curve).

6.2.4 Checks when the anti-rotation around axes function is disabled
When the anti-rotation around axes function is disabled, perform the following checks.

Safety function Access detection function
Restart prevention function

Schedule

Action

Before each machinery restart Check that the sensor is positioned as defined in the configuration.

Check that the monitored area is the same as defined Each time the safety outputs are by the configuration. deactivated
See “Validate the safety functions” on page 77.

6.3 Anti-tampering functions: anti-masking
6.3.1 Masking signal
The sensor detects the presence of objects that could obstruct the field of view. When the system configuration is saved, the sensor memorizes the surrounding environment. If the sensor subsequently detects variations in the environment that could influence the field of view, it sends a masking signal to the control unit. The sensor monitors from -50° to 50° on the horizontal plane regardless of the angular coverage set. Upon receiving a masking signal, the control unit deactivates the safety outputs.
Note: the masking signal is not guaranteed in the presence of objects which cause reflection effects that bring their RCS below the minimum detectable threshold.
Note: when the position is modified with respect to the saved references (i.e., when a sensor is masked) and the anti-rotation around axes function is enabled, the Inxpect SRE 200 Series detects the tampering and notifies it within 5 s.

6. Other functions

6.3.2 Environment memorization process
The sensor starts the surrounding environment memorization process when the Inxpect Safety application configuration is saved. From that moment, it waits for the system to exit the alarm status and for the scene to be static up to 20 seconds, then scans and memorizes the environment.
NOTICE: if the scene is not static during the 20 seconds interval, the system remains in a fault status (SIGNAL ERROR) and the system configuration must be saved again.
It is recommended to start the memorization process after at least 3 minutes from turning on the system to guarantee that the sensor has reached the operating temperature.

Only at the conclusion of the memorization process it is possible for the sensor to send masking signals.

6.3.3 Causes of masking
Possible causes of masking signals are the following:
l An object that obstructs the field of view of the sensor has been placed in the detection field. l The environment in the detection field changes significantly, for example, if the sensor is installed on
moving parts or if there are moving parts inside of the detection field. l The configuration was saved with sensors installed in an environment that is different from the working
environment. l There were temperature fluctuations.

6.3.4 Masking signal when the system is turned on
If the system was off for several hours and there were temperature fluctuations, the sensor might send a false masking signal when it is turned on. The safety outputs activate automatically within 3 minutes when the sensor reaches its working temperature. This does not happen if this temperature is still very far from the reference temperature.

6.3.5 Settings
For each sensor, the anti-masking settings are the following:
l maximum distance from the sensor (range [20 cm/7.87 in, 100 cm/3.28 ft], 10 cm/3.94 in steps) in which the function is active
l sensitivity
These are the four levels of sensitivity:
Note: the function has a tolerance area where the actual detection of a masking object depends on the RCS of the object and on the sensitivity level set. The high sensitivity level has the largest area, about 10-20 cm (3.94-7.87 in).

Level High
Medium Low
Disabled

Description

Example application

The sensor has the highest sensitivity to changes in the environment. (Suggested level when the field of view is empty up to the set masking distance)

Installations with an empty environment and a height of less than one meter, where objects could occlude the sensor.

The sensor has low sensitivity to changes in Installations with a height of more than one

the environment. Occlusion must be

meter, where masking is likely to occur only

evident (deliberate tampering).

if voluntary.

The sensor detects masking only if the sensor occlusion is complete and the objects are highly reflective (e.g., metal, water) near the sensor.

Installations on moving parts, where the environment is changing continuously, but where static objects may be near the sensor (obstacles on the route).

The sensor does not detect changes in the See “When to disable” on the next page. environment.

WARNING! If the function is disabled the system cannot signal the presence of objects that might impede normal detection (see “Checks when the anti-masking function is disabled” on the next page).

6. Other functions

To change the sensitivity level or disable the function, in the Inxpect Safety application, click Settings > Antitampering and search for Anti-masking sensitivity.
To set the distance, in the Inxpect Safety application, click Settings > Anti- tampering and search for Antimasking distance.

6.3.6 Checks when the anti-masking function is disabled
When the anti-masking function is disabled, perform the following checks.

Safety function Access detection function
Restart prevention function

Schedule Before each machinery restart
Each time the safety outputs are deactivated

Action
Remove any objects that obstruct the field of view of the sensor.
Reposition the sensor according to the initial installation.

6.3.7 When to disable
The anti-masking function should be disabled under the following conditions:
l (With restart prevention function) The monitored area includes moving parts that stop in different and unpredictable positions.
l The monitored area includes moving parts that vary their position while the sensors are in muting. l The sensor is positioned on a part that can be moved. l The presence of static objects is tolerated in the monitored area (e.g., loading/unloading area).

6.4 Auto-resume (5.x sensors only)
6.4.1 Introduction
Some transient faults cause a permanent lock-out condition that prevents normal operation from being restored. While the safe state is maintained, this behavior represents a limitation, especially for remote systems that are not easily accessible. The Auto-resume function tries to restore the normal functioning of the sensor for five consecutive attempts: if the fault condition persists, the block condition is preserved. Otherwise, the normal functioning condition is automatically restored.
6.4.2 Function limitations
The following faults are not subjected to auto-resume: l POWER ERROR l SIGNAL ERROR l TAMPER ERROR l TEMPERATURE ERROR
The function is not performed when the sensor is muted.

6.5 Electromagnetic Robustness
6.5.1 Electromagnetic robustness parameter
With the Electromagnetic robustness parameter, it is possible to increase the robustness of the system to electromagnetic interference (e.g., due to sensors of different systems installed too close to each other or problems on the CAN bus).
In the Inxpect Safety application in Settings > Advanced, the following levels of robustness can be set:
l Standard (default) l High l Very High
WARNING! The parameter impacts the system response time for the access detection safety function. According to the chosen level, the maximum guaranteed response time is 100 ms (Standard), 150 ms (High), or 200 ms (Very High).

Sensor position

Contents
This section includes the following topics:

7.1 Basic concepts

7.2 Sensor field of view

7.3 Advanced field of view (5.x sensors only)

7.4 Dangerous area calculation

7.5 Calculation of range of distances

7.6 Sensor position recommendations

7.7 Installations on moving elements (Mobile application)

7.8 Outdoor installations

7.1 Basic concepts
7.1.1 Determining factors
The sensor installation height and inclination should be decided together with the angular coverage and the detection distances in order to have optimal coverage of the dangerous area.
7.1.2 Sensor installation height
The installation height (h) is the distance between the center of the sensor and the ground or reference plane of the sensor.

7.1.3 Sensor inclination
Sensor inclination is the rotation of the sensor around its x-axis. Inclination is defined as the angle between a line perpendicular to the sensor and a line parallel to the ground. Three examples are presented as follows:
l sensor tilted upwards: positive l straight sensor: = 0 l sensor tilted downwards: negative

7.2 Sensor field of view
7.2.1 Types of field of view
During the configuration phase, for each sensor it is possible to select the angular coverage (see “Angular coverage” on page 38). The actual detection field of the sensor also depends on the sensor installation height and inclination (see “Calculation of range of distances” on page 60).

7. Sensor position
The standard shapes of the field of view are described below. For 5.x sensors, the Classic and Corridor shapes are available (see “Advanced field of view (5.x sensors only)” on page 57).
7.2.2 Areas and dimensions of the field of view
The sensor field of view is composed of two areas: l detection field [A]: where detection of objects similar to humans in any position is guaranteed l tolerance area [B]: where the actual detection of a moving object/person depends on the characteristics of the object itself (see “Factors that influence the reflected signal” on page 37)
7.2.3 Dimensions for the access detection function
Note: the tolerance area dimensions described are related to the detection of humans. The horizontal tolerance area is 20° greater than the angular coverage set.

Top view

Side view S201A model Side view S203A model

7.2.4 Dimensions for the restart prevention function
Note: the tolerance area dimensions described are related to the detection of humans. The horizontal tolerance area is 40° greater than the angular coverage set.

7. Sensor position

Side view S201A model

Top view

Side view S203A model

7.2.5 Position of the field of view
The field of view is tilted of the following degrees:
l 2.5° for S201A model l 1° for S203A model
To understand the actual position of the sensor field of view consider the LED position:
l left with sensor LED on the right (with respect to the sensor center, facing the sensor) l right with sensor LED on the left (with respect to the sensor center, facing the sensor) l downward with sensor LED up

7. Sensor position
Offset 2.5°

Top view with sensor inclination 0°.

Side view with sensor inclination 0°.
Offset 1°

Top view with sensor inclination 0°.

7. Sensor position
Side view with sensor inclination 0°.
7.3 Advanced field of view (5.x sensors only)
7.3.1 Introduction
For each sensor, two field of view shapes are available: l Classic l Corridor
7.3.2 Classic field of view
The classic shape allows you to choose the standard shape of the field of view and, if desired, to make it asymmetric. Each detection field can have its own symmetric/asymmetric angular coverage.
Conditions: l The sensor axis must always be included in all the detection fields. l The angular coverage of each detection field must be wider than, or equal to, the angular coverage of the following detection fields. l The minimum field of view width is 10°.
7.3.3 Corridor field of view
The corridor shape allows to customize the shape of the field of view. Starting from the standard shape with maximum angular coverage, it is possible to crop it on the side with two flat surfaces parallel to the axis of the sensor. Each detection field can have its own corridor width.

7. Sensor position
Conditions: l The sensor axis must always be included in all the detection fields. l The angular coverage of each detection field must be wider than, or equal to, the angular coverage of the following detection fields. l The minimum corridor width is 20 cm (7.87 in).
7.4 Dangerous area calculation
7.4.1 Introduction
The dangerous area of the machinery to which Inxpect SRE 200 Series is applied must be calculated according to the formulas described in this section, which are defined considering the guidelines and requirements of the ISO 13855:2010 (and ISO DIS 13855) standard.
7.4.2 Formula for stationary application
To calculate the depth of the dangerous area (S) for stationary applications, use the following formula:

Where:

Variable

Description

Value

K Maximum dangerous area access 1600 speed

T Total system stopping time (Inxpect SRE 200 Series +
machinery)

0.1 + Machinery stopping time (calculated in accordance with standard ISO 13855:2010)

C Corrective value

If H 1000, C = 1200

If 1000 < H < 1400, C = 1200 – [(H – 1000) * 0.875]

If H 1400, C = 850

For more details about H, see “H dimension definition” below.

Measurement unit
mm/s
s
mm mm
mm

Note: when using Fieldbus, add the communication and processing time required for the signal to reach the machine after the safety output is activated.
Example 1 l Machinery stopping time = 0.5 s l H 1400
T = 0.1 s + 0.5 s = 0.6 s S = 1600 0.6 + 850 = 1810 mm
Example 2 l Machinery stopping time = 0.3 s l H = 1200
T = 0.1 s + 0.3 s = 0.4 s C = 1200 – [(1200-1000) 0.875] = 1025 mm S = 1600 * 0.4 + 1025 = 1665 mm

7.4.3 H dimension definition
According to the approach, the H dimension has to be considered in the following way:
l for the parallel approach, H is the upper edge of the detection field [A] l for the orthogonal approach, H is the highest point of intersection between the detection field and the body
of a standing person, defined in the worst-case penetration position [B], [C], [D]

7. Sensor position
Note: [A], [B], [C] and [D] are examples to define H and not suggestions on how to install the sensor. For details about the calculation of H, please refer to the application notes downloadable from the site https://tools.inxpect.com. For details about the difference between the two approaches, please refer to standard ISO 13855.

[A] [B] [C] [D]

7.4.4 Formula for mobile application
To calculate the depth of the dangerous area (S) for mobile applications, use the following formula:

Where:

Variable

Description

K Maximum vehicle/part of machinery speed *.

T Total system stopping time (Inxpect SRE 200 Series + machinery)
C Corrective value

Value
For detection distance 4 m (13.12 ft): K 3000 For detection distance > 4 m (13.12 ft): K 2000 0.1 + Machinery stopping time (calculated in accordance with standard ISO 13855:2010)
200

Measurement unit
mm/s
s
mm

Note*: only the speed of the vehicle or of the part of machinery is considered. This is based on the assumption that the person recognizes the hazard and stands still.
Note: when using Fieldbus, add the communication and processing time required for the signal to reach the machine after the safety output is activated.

7. Sensor position

Example 1 l maximum vehicle speed = 2000 mm/s l machinery stopping time = 0.5 s
T = 0.1 s + 0.5 s = 0.6 s S = 2000 * 0.6 + 200 = 1400 mm

7.5 Calculation of range of distances
7.5.1 Introduction
The range of detection distances for a sensor depends on the inclination () and the installation heights (h) of the sensor. The detection distance of each detection field (Dalarm) depends on a distance d that must be within the range of distances allowed. The formulas for calculating the distances are reported as follows.
WARNING! Define the optimum sensor position according to the risk assessment requirements.

7.5.2 Legend

Element h d
Dalarm D1 D2

Description

Sensor inclination

degrees

Sensor installation height

Detection distance (linear)

Must be within the range of distances allowed (see “Installation configurations” below).

Detection distance (real)

Start detection distance (for configuration 2 and m 3); end detection distance (for configuration 1)

End detection distance (for configuration 3)

Measurement unit

7.5.3 Installation configurations
For the S201A model, three configurations are possible based on the inclination of the sensor ():
l +13°: configuration 1, the field of view of the sensor never intersects the ground l -7° +12°: configuration 2, the upper portion of the field of view of the sensor never intersects the
ground l -8°: configuration 3, the upper portion and the bottom portion of the field of view always intersect the
ground
For the S203A model, three configurations are possible based on the inclination of the sensor ():
l +8°: configuration 1, the field of view of the sensor never intersects the ground l -5° +7°: configuration 2, the upper portion of the field of view of the sensor never intersects the
ground l -6°: configuration 3, the upper portion and the bottom portion of the field of view always intersect the
ground
Note: the positive sign (+) indicates the tilt up, while the negative sign (-) the downward tilt.

7.5.4 Calculate the range of distances
The range of detection distances for a sensor depends on the configuration:

Configuration 1 2 3

Range of distances From 0 m to D1 From D1 to 5 m From D1 to D2

For S201A model: For S203A model: Below is an example for configuration 3, with D1 = 0.9 m and D2 = 1.6 m.

7. Sensor position

S201A model

S203A model

7.5.5 Calculate the real detection distance
The actual detection distance Dalarm is the value to be entered on the Configuration page of the Inxpect Safety application.
Dalarm indicates the maximum distance between the sensor and the object to be detected.

7.6 Sensor position recommendations
7.6.1 For access detection function
Below are some recommendations for the sensor positioning for the access detection function:
l If the distance between the ground and the bottom portion of the field of view is greater than 20 cm (7.9 in), take precautions to make sure that even a person entering the dangerous area below the volume monitored by the field of view is still detected.
l If the height above the ground is less than 20 cm (7.9 in), install the sensor with an inclination of minimum 10° upwards.
l The installation height (from the ground to the center of the sensor) must be greater than or equal to 15 cm (5.9 in).

7. Sensor position
7.6.2 For access control of an entrance
Below are some recommendations for the sensor positioning if it is installed for controlling an entrance: l The installation height (from the ground to the center of the sensor) must be greater than or equal to 20 cm (7.9 in). l The angular coverage must be 90°. l The inclination must be 40° upwards. l The rotation around the z-axis must be 90°.
Below is an example:

WARNING! The angular coverage in the first 800 mm (31.5 in) of the field of view must be at least 60°. If this specification cannot be respected, take precautions to avoid the access of a human in the first 800 mm (31.5 in) of the field of view.

7.6.3 For restart prevention function
Below are some recommendations for the sensor positioning for the restart prevention function:
l The installation height (from the ground to the center of the sensor) must be greater than or equal to 15 cm (5.9 in).

7. Sensor position
7.7 Installations on moving elements (Mobile application)
7.7.1 Introduction
The sensors can be mounted on moving vehicles or moving machinery parts.
The characteristics of the detection field and the response time are the same as in stationary installations.
7.7.2 Speed limits
The detection is guaranteed only if the speed of the vehicle or part of the machinery is:
l for detection distance less than or equal to 4 m (13.12 ft), from 0.1 m/s (0.33 ft/s) to 3 m/s (9.84 ft/s) l for detection distance greater than 4 m (13.12 ft), from 0.1 m/s (0.33 ft/s) to 2 m/s (6.56 ft/s)
Note: only the speed of the vehicle or of the part of machinery is considered. This is based on the assumption that the person recognizes the hazard and stands still.
7.7.3 Detection signal generation conditions
When the sensor is mounted on moving parts, it will detect static objects as moving objects.
The sensor will trigger a detection signal if the following conditions are met:
l The RCS (Radar Cross-Section) of static objects is greater than or equal to the RCS of a human body. l The relative speed between the objects and the sensor is greater than the minimum speed necessary for
detection.
7.7.4 Prevention of unexpected restart
As for stationary installations, when the moving part where the sensor is installed is arrested because of detection, the system will switch to restart prevention safety function (if Safety working mode is not Always-on access detection), and the sensor will detect the presence of a human body (see “Sensor positioning guidelines” on page 44). Static objects are then automatically filtered out and no longer detected.
The restart of the moving vehicle or moving part of the machinery in the presence of static objects can be prevented using the following methods:
l Static object detection option enabled (see “Restart prevention function: static object detection option” on page 44).
l Anti-masking function: if the function is enabled, an error will occur when the static object will be close enough to limit the detection of the sensor. Note: if the anti-masking function is active when the sensor is moving also, this could generate false alarms since the environment change during movement could be detected as tampering.
l Manual restart: the restart is triggered externally and only once the static object is removed from the trajectory of the moving vehicle or moving part.
l Application logic on PLC/control unit that permanently stops the moving part if multiple stops occur immediately after the restart of the part. If the vehicle or the part stops very quickly after the restart, this probably means that there is a static obstacle. Once the moving part is stopped, the sensor does not detect the object anymore and therefore the part moves but it stops again as soon as it detects the object again.
7.7.5 Recommendations for positioning the sensor
In mobile applications, the sensor moves with the vehicle or moving machinery parts. Position the sensor so the floor is excluded from its detection field to avoid undesired alarms.
For driverless industrial trucks in indoor environments, it is recommended to use a S203A model sensor and install it so that the center of the sensor is positioned at a height of 15 cm (5.9 in) from the ground, with an inclination of no more than 7° upward.

7. Sensor position
7.8 Outdoor installations
7.8.1 Position exposed to precipitation
If the sensor installation position might be exposed to precipitation that can cause undesired alarms, it is recommended to take the following precautions:
l Make a cover to protect the sensor from rain, hail or snow. l Position the sensor so that it does not frame the ground where puddles might form. NOTICE: Weather conditions outside specifications can prematurely age the device.
7.8.2 Recommendations for covering the sensor
Below are some recommendations for creating and installing a sensor cover: l height from sensor: 15 cm (6 in) l width: minimum 30 cm (11.8 in), maximum 40 cm (15.7 in) l protrusion from the sensor: minimum 15 cm (6 in), maximum 20 cm (7.9 in) l water outflow: at the sides or behind but not in front of the sensor (the cover should be arched and/or tilted backwards)
7.8.3 Recommendations for positioning the sensor
Below are some recommendations for defining the sensor position: l installation height (from the ground to the center of the sensor): minimum 15 cm (5.9 in) l suggested inclination: minimum 15° for S201A model, 10° for S203A model
Before installing a sensor facing downwards, make sure there are neither liquids nor radar reflective materials on the floor. Note: if the above recommendations are followed and the monitored area is free of static objects, the system is robust against a rainfall rate up to 45 mm/h.
7.8.4 Position not exposed to precipitation
If the installation position of the sensor is not exposed to precipitation, no special precautions are required.

Installation and use procedures

Contents
This section includes the following topics:

8.1 Before installation

8.2 Install Inxpect SRE 200 Series

8.3 Set the sensor inclination with a 1° precision

8.4 Configure Inxpect SRE 200 Series

8.5 Validate the safety functions

8.6 Manage the configuration

8.7 Other procedures

8.1 Before installation
8.1.1 Materials required
l Two tamper-proof screws (see “Tamper-proof screws specifications” on page 108) to mount each sensor. l Cables to connect the control unit to the first sensor and the sensors to one another (see “CAN bus cables
recommended specifications” on page 108). l A data USB cable with a micro-USB connector (micro-B type) or, only if the Ethernet port is available, an
Ethernet cable to connect the control unit to the computer. l A bus terminator (product code: 07000003) with resistance of 120 for the last sensor of the CAN bus. l A screwdriver for tamper-proof screws (see “Tamper-proof screws specifications” on page 108) to be used
with the Hex pin security bit supplied in the control unit package.
8.1.2 Operating system required
l Microsoft Windows 10 or later l Apple OS X 11.0 or later
8.1.3 Install the Inxpect Safety application
Note: if the installation fails, the dependencies needed by the application may be missing. Update your operating system or contact our Technical Support to receive assistance.
1. Download the application from the https://tools.inxpect.com website and install it on the computer. 2. With Microsoft Windows operating system, download and install from the same site also the driver for
USB connection.
8.1.4 Initiate Inxpect SRE 200 Series
1. Calculate the position of the sensor (see “Sensor position” on page 53) and the depth of the dangerous area (see “Dangerous area calculation” on page 58).
2. ” Install Inxpect SRE 200 Series”. 3. “Configure Inxpect SRE 200 Series”. 4. “Validate the safety functions”.
8.2 Install Inxpect SRE 200 Series
8.2.1 Install procedure
1. “Install the control unit”. 2. Optional. “Mount 3-axes bracket”. 3. “Install the sensors”. 4. “Connect the sensors to the control unit”.
Note: connect the sensors to the control unit off-site if access to the connectors becomes difficult once installed.

8. Installation and use procedures
8.2.2 Install the control unit
WARNING! To prevent tampering, make sure the control unit is only accessible to authorized personnel (e.g., key-locked electrical panel)
1. Mount the control unit on the DIN rail. 2. Make electrical connections (see “Terminal blocks and connector pin-outs” on page 109 and “Electrical
connections” on page 111). NOTICE: if at least one input is connected, the SNS input “V+ (SNS)” and the GND input “V- (SNS)” must also be connected. NOTICE: when powered, the system takes about 20 s to start.During that period, the outputs and the diagnostic functions are deactivated, and the green sensor status LEDs of the connected sensors in the control unitflash. NOTICE: make sure to avoid any EMC interference during the control unit installation. Note: to correctly connect the digital inputs, see “Voltage and current limits for digital inputs” on page 110.

8. Installation and use procedures

8.2.3 Mount 3-axes bracket

Note: for an example of sensor installation, see “Examples of sensor installation” on page 70.

The bracket that allows rotation around the z-axis (roll) is an accessory in the package. To mount it:

1. Unscrew the screw at the bottom and remove the bracket with the sensor and the aligning ring.

2. Attach the roll bracket to the base. Use the tamper-proof screw provided with the bracket.

3. Mount the bracket with the sensor and the aligning ring. Use the tamper- proof screw provided with the bracket.

8. Installation and use procedures

8.2.4 Install the sensors

Note: for an example of sensor installation, see “Examples of sensor installation” on page 70.

Note: the usage of a thread-locking fluid on the threads of fasteners is suggested, especially when the sensor is installed on a moving or vibrating part of the machinery.

Note: if no bracket is used for sensor installation, use tamper-proof screws and threadlocker.

1. Position the sensor as indicated in the configuration report and fasten the bracket with two tamper-proof screws directly onto the floor or another support
NOTICE: make sure the support does not inhibit machinery commands.

2. With an Allen key, loosen the screw at the bottom to pan the sensor.
Note: to avoid damaging the bracket, loosen the screw completely before panning the sensor.

3. Pan the sensor until it reaches the desired position.
Note: a notch is equal to a 10° of rotation.

4. Tighten the screw.

5. Loosen the tamper-proof screws to tilt the sensor.

8. Installation and use procedures
6. Tilt the sensor to the desired inclination (see “Sensor position” on page 53). Note: a notch is equal to a 10° of inclination. For a finer regulation of the sensor inclination with a 1° precision (see “Set the sensor inclination with a 1° precision” on page 72).

7. Tighten the screws.

8. Installation and use procedures
8.2.5 Examples of sensor installation
NOTICE: refer to the sensor LED position to identify the sensor field of view (see “Position of the field of view” on page 55).
Floor installation

Wall installation (for example for access control of an entrance).

8. Installation and use procedures
Note: install the sensor so that the field of view is tilted towards the outside of the hazardous area to avoid false alarms (see”Position of the field of v

INXPECT SRE 200 Series Safety Radar System IO User Manual

INXPECT SRE 200 Series Safety Radar System IO

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