SCHMERSAL Micro Limit Switch Instruction Manual

: June 16, 2024
: SCHMERSAL

Table of Contents

SCHMERSAL Micro Limit Switch
Product Information
About this document
Product description
Technical Data
Safety classification – Safety outputs
Mechanical data
Mounting
Electrical connection
Set-up and maintenance
Disassembly and disposal
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SCHMERSAL Micro Limit Switch

Product Information

Specifications

Ordering Code: [insert ordering code]
Special Versions: [insert special versions]
Purpose: The product is designed to execute safety-related functions as part of an entire plant or machine.
Warning about Misuse: It is important to use the product only for the applications authorized by the manufacturer.
Exclusion of Liability: The information provided in this manual is subject to technical modifications and is provided without liability.
Technical Data: [insert technical data]

Mounting

General Mounting Instructions
Follow these general instructions for proper mounting of the product.

Mounting of the Actuator
Refer to the specific instructions provided in the operating instructions manual for proper mounting of the actuator.

Dimensions
Refer to the dimensions provided in the operating instructions manual for accurate measurements.

Electrical Connection

General Information for Electrical Connection
Follow these general instructions for proper electrical connection of the product.

Contact Options
Refer to the operating instructions manual for information on available contact options and their usage.

Set-up and Maintenance
Follow the instructions provided in the operating instructions manual for proper set-up and maintenance of the product.

Disassembly and Disposal

Disassembly
Refer to the specific instructions provided in the operating instructions manual for proper disassembly of the product.

Disposal
Follow the proper disposal procedures for the product as described in the operating instructions manual.

FAQ

Q: Who should carry out the operations described in the operating instructions manual?
A: All operations described in the operating instructions manual must be carried out by trained specialist personnel, authorized by the plant operator only.
Q: What should I do before installing and putting the component into operation?
A: Before installation and putting the component into operation, make sure to read and understand these operating instructions and know all applicable legislations regarding occupational safety and accident prevention.
Q: Can the product be used by private end consumers?
A: No, the products in Schmersal’s range are not intended to be used by private end consumers.
Q: Where can I find further technical information?
A: Further technical information can be found in the Schmersal catalogues or in the online catalogue on the Internet: products.schmersal.com.

About this document

Function
This document provides all the information you need for the mounting, set-up and commissioning to ensure the safe operation and disassembly of the switchgear. The operating instructions enclosed with the device must always be kept in a legible condition and accessible.

Target group of the operating instructions: authorised qualified personnel
All operations described in the operating instructions manual must be carried out by trained specialist personnel, authorised by the plant operator only.

Please make sure that you have read and understood these operating instructions and that you know all applicable legislations regarding occupational safety and accident prevention prior to installation and putting the component into operation.
The machine builder must carefully select the harmonised standards to be complied with as well as other technical specifications for the selection, mounting and integration of the components.
The information contained in this operating instructions manual is provided without liability and is subject to technical modifications.
mhoUExplanation of the symbols used

Information, hint, note: This symbol is used for identifying useful additional information.
Caution:Failure to comply with this warning notice could lead to failures or malfunctions.
Warning :Failure to comply with this warning notice could lead to physical injury and/or damage to the machine.

Appropriate use
Products in Schmersal’s range are not intended to be used by private end consumers.
The products described in these operating instructions are developed to execute safety-related functions as part of an entire plant or machine. It is the responsibility of the manufacturer of a machine or plant to ensure the correct functionality of the entire machine or plant.
The safety switchgear must be exclusively used in accordance with the versions listed below or for the applications authorised by the manufacturer. Detailed information regarding the range of applications can be found in the chapter “Product description”.

General safety instructions
The user must observe the safety instructions in this operating instructions manual, the country specific installation standards as well as all prevailing safety regulations and accident prevention rules.

Further technical information can be found in the Schmersal catalogues or in the online catalogue on the Internet: products.schmersal.com.

Product description

Ordering code

Product type description : AZ 15 ZV(1)K-(2)-(3)

Special versions
For special versions, which are not listed in the ordering code, these specifications apply accordingly, provided that they correspond to the standard version.

Purpose

The safety switches with separate actuator are suitable for sliding, hinged and removable safety guards, which need to be closed in order to ensure the necessary operational safety.
The safety switches are used for applications, in which the hazardous situation is terminated without delay when the safety guard is opened.
When the safety guard is opened, the NC contacts are positively opened and the NO contacts are closed.
The safety switchgears are classified according to EN ISO 14119 as type 2 interlocking devices.
The user must evaluate and design the safety chain in accordance with the relevant standards and the required safety level.
The entire concept of the control system, in which the safety component is integrated, must be validated to the relevant standards.

Warning about misuse
In case of improper use or manipulation of the safety switchgear, personal hazards or damages to machinery or plant components cannot be excluded. There are no residual risks, provided that the safety instructions as well as the instructions regarding mounting, commissioning, operation and maintenance are observed.

Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from defective mounting or failure to comply with the operating instructions manual. The manufacturer shall accept no liability for damages resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary repairs, conversions and modifications to the device are strictly forbidden, the manufacturer shall accept no liability for damages resulting from such invasive work, arbitrary repairs, conversions and/or modifications to the device.

Technical Data

General data

General data – Features

Safety classification – Safety outputs

B10D Normally-closed contact (NC) 2,000,000 Operations

Mechanical data

Mechanical data – Dimensions

Length of sensor 30 mm
Width of sensor 52 mm
Height of sensor 90 mm

Ambient conditions

Degree of protection IP67
Ambient temperature, minimum -30 °C
Ambient temperature, maximum +80 °C

Ambient conditions – Insulation values

Rated insulation voltage Ui 500 V
Rated impulse withstand voltage Uimp 6 kV

Electrical data

Thermal test current 10 A
Switching principle Slow action

Electrical data – Safety contacts

Voltage, Utilisation category AC-15 230 VAC
Current, Utilisation category AC-15 4 A
Voltage, Utilisation category DC-13 24 VDC
Current, Utilisation category DC-13 4 A

Electrical data – Auxiliary contacts

Voltage, Utilisation category AC-15 230 VAC
Current, Utilisation category AC-15 4 A
Voltage, Utilisation category DC-13 24 VDC
Current, Utilisation category DC-13 4 A

Note about the safety classification
Basically suitable up to Cat. 1 / PL c.
With 2-channel usage with fault exclusion mechanism (if a fault exclusion to the 1-channel mechanics is authorised) and suitable logic applicable up to Cat. 3 / PL d

(Determined values can vary depending on the application-specific parameters hop, dop and tcycle as well as the load.)

If multiple safety components are wired in series, the Performance Level to EN ISO 13849-1 will be reduced due to the restricted error detection under certain circumstances

Mounting

General mounting instructions
Please observe the relevant requirements of the standards ISO 12100, ISO 14119 and ISO 14120.

The mounting dimensions are indicated on the rear of the component. The enclosure must not be used as an end stop.
Any mounting position. The mounting position however must be chosen so that the ingress of dirt and soiling in the used opening is avoided. The unused openings must be sealed by means of slot sealing plugs (AZ 15/16 – 1476-1 available as accessory) after fitting.

Mounting of the actuator
See operating instructions Actuator.

The actuator must be permanently fitted to the safety guards and protected against displacement by suitable measures (tamperproof screws, gluing, drilling of the screw heads).

Dimensions
All measurements in mm.

Electrical connection

General information for electrical connection
The electrical connection may only be carried out by authorised personnel in a de-energised condition.

The contact labelling can be found in the wiring compartment of the switch. Appropriate cable glands with a suitable degree of protection are to be used.

Settle length x of the conductor: 6 mm
After wiring, dust and soiling must be removed from the wiring compartment. The safety switch is double insulated. The use of a protective ground connector therefore is not authorised.

Contact Options
Contacts are shown with safety guard closed. All NC contacts have positive break B.

Set-up and maintenance

The safety function of the safety components must be tested. In the case of correct installation and adequate use, the safety switchgear features maintenance-free functionality. A regular visual inspection and functional test, including the following steps, is recommended:

Check for free movement of the actuating element
Check cable entry and connections
Check the switch enclosure for damage
Remove particles of dust and soiling

Adequate measures must be taken to ensure protection against tampering either to prevent tampering of the safety guard, for instance by means of replacement actuators.
Damaged or defective components must be replaced.