micronor MR380-0 Fiber Optic Universal OEM Signaling Controller Instruction Manual

micronor MR380-0 Fiber Optic Universal OEM Signaling Controller

Notice of Proprietary Rights

The design concepts and engineering details embodied in this manual, which are the property of MICRONOR SENSORS, are to be maintained in strict confidence; no element or detail of this manual is to be spuriously used, nor disclosed, without the express written permission of MICRONOR SENSORS. All rights are reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from MICRONOR SENSORS.

Revision History

Product Description

Fiber Optic Switch Sensor Controller Board

A fiber optic switch works on the basis of interrupting a light beam when a certain event occurs and the switch is activated. Although switches take on various forms such as, Toggle, E-STOP, Push-Button and so on, the principle of sensing the switch state remains the same via interruption of the optical beam. MICRONOR has implemented the concept by using a transmit fiber and a receive fiber. The transmitter sends a constant light level via the transmit fiber and the receive fiber guides the light back. When the switch is not activated, most of the light is guided back to the receiver. When the switch is activated, little or no light is coupled back to the receiver.

The MICRONOR Fiber Optic switches are immune to EMI/RFI and can be deployed at great distances from the electrical controller. Applications include:

• MRI machines operate under an extremely strong electromagnetic field. Special switches are manufactured to be entirely free of metallic materials and, thus, will not interfere with the MRI imaging process.
• Pipe and tube welding produces extreme interference while the welding process is active
• Surgical robots must perform 100% reliably
• Oil & Gas since there is no sparking
• Aerospace actuators operating in and around other noise generating avionics
• Aerial Tramways, Gondolas, Ski lifts etc, because immunity to lightening.

An all-optical, non-electronic passive solution, such as the fiber optic switch, provides complete immunity to such interferences.

Fiber Optic Controller Board

The MR380-0 Controller Board is intended for the OEM user in support of deployment of the various Fiber Optic Signaling products. The OEM PCB contains a stabilized transmitter and a sensitive optical receiver. There are two digital outputs

a.) 5V logic Level signals a High when optical power is received.
b.) Open-collect output for activating an external relay (or other electrical load) when sufficient optical power is received.

This universal PCB may be used in conjunction with many of the MICRONOR signaling devices.

The MR380-0-UNI is intended for OEM applications where the PCB can be mounted into a suitable enclosure and where it is sufficiently protected from the environment such as water and dust or similar influences. Optically the interface board is compatible with both single mode OS1 and multimode OM1 (62.5µm/125µm) and OM2/OM3 (50µm/125µm) fiber cabling.

Functional Description

The “Universal” Controller

The MR380-0 OEM Controller is designed to be universally compatible with any standard fiber optic cabling. This is accomplished through the design of its transmit and receive fibers.

In fiber optics, coupling two fibers of different core diameters is only permitted when the core of the receiving fiber is the same size or larger than that of the transmitting fiber. For example, transmitting from OS1 9/125µm single mode fiber to OM1 62.5/125µm or OM2 50/125 multimode fiber does not produce any losses since the core diameter expands from 9µm to 62.5µm or 50µm. Conversely, transmitting from OM1 or OM2 fiber to OS1 fiber causes significant losses and is unacceptable as the core of the receiving fiber is smaller than that of the transmitting fiber. However, if the receiving fiber is only slightly smaller than the transmitting fiber, there is a smaller loss that can be built into the system loss budget. For example, transmitting from OM1 fiber (62.5µm core) to OM2 fiber (50µm core) produces a loss of approximately 1.2dB, which is not a problem in most situations.

In the MR380-0 controller, the transmit fiber is OS1 9/125µm single mode fiber. Since the core of the fiber is smaller than any other standard fiber, no losses are produced at this connection, no matter which standard fiber the rest of the system uses. And, at the other end, the controller’s receive fiber is OM1 62.5/125µm multimode fiber. Similarly, no losses are produced at the receive connection because the OM1 fiber is larger than any standard fiber the rest of the system might use.

As a result, the MR380-0 controller is compatible with any standard fiber, hence its designation as a universal controller. Despite this designation, users should use the same fiber throughout their system to avoid complications and simplify future alterations.

Functional Block Diagram

A functional block diagram is shown in Figure 10, showing the switch sensor, optical link and controller module. The switch is connected to the controller by a duplex fiber optic cable of readily available 50/125µm or 62.5/125µm multimode fiber or 9/125µm single mode fiber. The controller’s 9/125µm single mode transmit fiber guides steady optical power from a near IR light source to the optical switch. Then, a 62.5/125µm multimode receive fiber returns the light relaying if the switch is open or closed.

The light source power is held constant under normal operating conditions allowing for a known system loss budget when designing a system. Additionally, the optics within the switch are designed to couple maximum light back into the receive fiber enabling the ability to create long distance systems and chain multiple switches.

Next, the optical power is identified by the photodetector and translated into a logic signal depending on the power level. The photodetector operates with an active low signal scheme which provides a known failure state. The controller then interprets events such as broken fiber, poor connection, high loss or a depressed switch as a failure or ‘EMERGENCY ON’.

The photodetector outputs a logic signal to the remaining logic circuitry which then interprets high or low levels for the +5V digital and Open- Collector outputs.

Initial Preparation

Unpacking and Inspection

The unit was carefully inspected mechanically and electrically before shipment. When received, the shipping carton should contain the following items listed below. Account for and inspect each item before the carton is discarded.

The PCB is an electronic Assembly and susceptible to ESD. Please use appropriate grounding and caution when handling the PCB.

In the event of a damaged product, write or call your nearest MICRONOR AG sales office.

Please retain the shipping container in case re-shipment is required for any reason.

Damage in Shipment

If you receive a damaged product you should:

1. Report the damage to your shipper immediately.
2. Inform MICRONOR AG or your local Micronor representative.
3. Save all shipping cartons.

Failure to follow this procedure may affect your claim for compensation.

Standard Contents

MR380-0-UNI OEM Controller Board:

• PCB board with built-in Duplex LC interface and 3.5mm contact strip.
• CamdenBoss P/N CTB1301/6A 6C, Screw-Type Terminal Plug, 5mm Contact Spacing

This Instruction Manual can be downloaded from www.micronor.com

Installation and Operation

Mounting the Sensor Unit

When installing the sensor, be careful not to bend the fiber excessively. It is recommended to keep the minimum bend radius 25mm (1”) or larger. Ensure that the fiber outlet at the switch is protected from excessive pulling or bending.

Make sure that the fiber optic connector tips are always covered when not in use. Always clean and inspect the connector ends before mating to interface.

Be sure to use proper fiber optic cleaming tools and procedures such as the MICRONOR MR321C Cleaning Kit. Improper tools and/or processes may damage or contaminate the optical interface.

Mounting the MR380-0 Controller PCB

The controller PCB should be mounted on 4 standoffs.
Clearance shall be available for access to the Fiber Optic Interface.
The mounting holes are suitable for #2-56 or M2.5 screws. The mounting holes are electrically connected to GND. Consult Reference Drawing 98-0380-15 for more information

Optical Connections to the MR380-0 Controller

A duplex fiber optic cable is used to interconnect the sensor and controller. The sensor incorporates a 1.5m optical pigtail (or as specified by customer). If a longer connection to the controller is required, then a fiber optic extension cable may be used.

Remove the dust cap form both the cable connector and the optical port on the controller. Insert the LC connector as shown. There should be a positive click when the connector is engaged properly.

Do not force the Fiber Optic Connector!

Electrical Connections To MR380-0 Controller

The may be unit is powered with any voltage between 5V and 24V DC.
Current consumption is typ. 8mA at 5V DC and +12mA at 24V DC excluding any external load.

NOTE: Mounting holes are internally connected to GND. When all connections are made, than apply DC voltage in the range of +5V to max +24V.
If the sufficient optical power is received, then the onboard LED will light up. It is OFF when no optical power is received.

Interfacing with an external Relay

An external relay may be connected to the open-collector terminal (6).

The maximum voltage allowed for this output is up to the power supply Voltage.

If the pull-up resistor R8 is removed, then voltages exceeding the V Supply up to 48V are allowed.

The current load shall not exceed 180mA.

Warranty Information

Warranty

MICRONOR AG warrants this product to be free from defects in material and workmanship for a period of 1 (one) year from date of shipment. During the warranty period we will, at our option, either repair or replace any product that proves to be defective.

Applying improper supply voltage (greater then 24VDC or reverse polarity) voids the warranty.

To exercise this warranty, write or call your local MICRONOR AG representative, or contact MICRONOR AG headquarters. You will be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service facility. Repairs will be made and the product returned transportation prepaid. Repaired products are warranted for the balance of the original warranty period, or at least 90 days. MICRONOR AG reserve’s the option to either repair, or replace product.

Limitations of Warranty

This warranty does not apply to defects resulting from unauthorized modification or misuse of any product or part. This warranty also does not apply to Fiber Optic Connector interfaces, improper mounting of the PCB, fuses or AC line cords. This warranty is limited to the maximum price paid by purchaser to MICRONOR AG, excluding any shipping, transportation or duties. This warranty is in lieu of all other warranties, expressed or implied, including any implied warranty of merchantability of fitness for a particular use. MICRONOR AG shall not be liable for any indirect, special or consequent damages.

Contact Information:

For North America:
MICRONOR SENSORS INC. Tel +1-805-389-6600
2085 Sperry Ave, Suite A-1 Email sales@micronor.com
Ventura, CA 93003 URL www.micronor.com
USA

For Europe, Asia and Rest of the World:
MICRONOR AG Tel +41-44-843-4020
Pumpwerkstrasse 32 F +41-44-843-4039
CH-8015 Regensdorf Email sales@micronor.ch
SWITZERLAND URL www.micronor.ch

Specifications

MR380-0-UNI Universal OEM Signaling Controller

For Normally Open (NO) Sensors

• Plunger Up
• Plunger Down (Normal State)

| LED=Off, Logic Output=LO, Open Collector Outut=OFF LED=On, Logic Output=HI, Open Collector Output=ON
For Normally Open (NC) Sensors

• Plunger Up (Normal State)
• Plunger Down

| LED=On, Logic Output=HI, Open Collector Output=ON LED=Off, Logic Output=LO, Open Collector Outut=OFF
Functional States| Example: MR387 Series Fiber Optic E-Stop

• Normal Posit on (Up)
• Emergency State (Down)

| LED=On,Logic Output=HI, Open Collector Output=ON LED=Off, Logic Output=LO, Open Collector Outut=OFF
Electrical| Note: Electrical connections shall not exceed 3 meters
Connector| CamdenBoss P/N CTB1301/6A, 6C, Screw-Type Terminal Plug, 5mm contact spacing, 1.5mm2 cable entry
Logic Output| High=4.5V min. (2k Ohm Load), Low=0.25V max.
Open Collector Output| Maximum Load Voltage 24V
Maximum Current 180mA, Protected by resettable fuse
Power Supply| +5VDC to +24V DC maximum
Current Consumption=8mA max at 5V DC, 12mA at +24V and R8 installed
Optical| Class 1 Eye Safe
Laser Safety Classification| Class 1 Eye Safe, 1310nm, VCSEL
Connectior| LC Duplex, PC Polish
Compatible Fiber Types| 62.5/125µm OM1 Multimode, or 50/125µm OM2/OM3 Multimode, or

9/125µm OS1 Single Mode

Optical Loss Margin| OM1=21dB, OS1=18dB, max
Maximum Optical Link Length| Distance is a function of the user’s system loss budget which si the total round-trip loss of all optical link components – multiple sensors, connectors, splices, and cable segments.
Consult Application Note AN118 for more information.
Explosive Atmospheres| Inherently Safe Optical Radiation
Ex Classification| Controller shall be installed in non-hazardous  location only Power supply to Controller shall be current limited to 200mA or less
ATEX|  [EPL Mb/Gb/Gc/Db/Dc]
IEC Ex/EAEU/GOST| [EPL Mb/Gb/Gc/Db/Dc]
North America| Controller shall be installed in non-hazardous location only
Environmental Performance|
Temperature/Humidity| -40°C to +70°C (-40°F to +158°C, 0-85% RH, Non- Condensing
Ingress Protection| IP00 (none)
Physical Attributes|
Mounting| 4x #2-56 or M2.5 screws, Mounting pattern 1.60” x 2.60”
Size
Weight| 5.08 x 7.62cm (2.00” x 3.00”)
25g (1oz)

Reference Documents

Documents appear on the following pages.

Dimension

REVISIONS

REV| DESCRIPTION| DATE| APPROVED
A| NEW RELEASE| 8/4/2016| AD
A1| | | DNH

1. WARNING: AVOID SHARP BENDS IN FIBER CABLING KEEP BEND RADIUS GREATER THAN 0.5 INCH [13MM].
2. WARNING: KEEP CONNECTOR COVERS IN PLACE DURING STORAGE TO PROTECT OPTICAL CONNECTOR

NOTES: UNLESS OTHERWISE SPECIFIED

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF MICRONOR INC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF MICRONOR INC. IS PROHIBITED.

UNLESS OTHERWISE SPECIFIED:

DIMENSIONS ARE IN INCHES TOLERANCES: FRACTIONAL ANGULAR: MACH BEND TWO PLACE DECIMAL .01 THREE PLACE DECIMAL .004
INTERPRET GEOMETRIC TOLERANCING PER:
MATERIAL
FINISH
DO NOT SCALE DRAWING
NEXT ASSY| USED ON
APPLICATION
NAME| DATE
DRAWN A DU| 4/28/16
CHECKED|
ENG APPR.|
MFG APPR.|
Q.A.|
COMMENTS:

Customers Support

MICRONOR SENSORS INC.
2085 Sperry Ave, Suite A-1
Ventura, CA 93003 USA
T 805-389-6600
sales@MICRONOR.com
www.MICRONOR.com

References

• Micronor: Faseroptische & Mechanische Sensoren - Micronor
• Products - Micronor Sensors Inc.

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