Micronor MR380 Series User manual

MICRONOR INC.
900 Calle Plano, Suite K
Camarillo, CA 93012
USA
Tel [phone]
Fax [phone]
[e-mail]
www.micronor.com
For Support in Europe:
MICRONOR AG
Pumpwerkstrasse 32
CH-8105 Regensdorf
Switzerland
Tel [phone]
Fax [phone]
[e-mail]
www.micronor.ch
Notice of Proprietary Rights
The design concepts and engineering details embodied in this manual, which are the property of
MICRONOR INC., 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 INC. 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 INC.
© Copyright 2013-2015, Micronor Inc., USA
MR380 Series
Fiber Optic Emergency Stop System
Instruction Manual
Doc No: 98-0380-01
Revision C, Released 10-15-2015

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Revision History
Revision
Date
Notes
A
12/11/2013
Initial release
B
7/13/2015
•Added 50/125 fiber pigtail option
•Controller design upgraded to Universal and will
work with both 50/125 and 62.5/125
multimode fiber
C
10/15/2015
Update with new Camarillo address and tel/fax
numbers

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Table of Contents
1. Product Description ................................................................5
1.1. Fiber Optic Emergency Stop Switch ..................................................................................5
1.2. Fields of Application ...........................................................................................................6
1.3. Features..............................................................................................................................6
2. Standard Contents...................................................................7
3. Installation and Operation ......................................................8
3.1. Mounting the Emergency Switch.......................................................................................8
3.2. Mounting the Controller Module .......................................................................................9
3.3. Connecting the Controller ................................................................................................10
3.4. System Start-Up & Performance Check..........................................................................11
4. Troubleshooting ....................................................................12
4.1. Potential Issues & Solutions............................................................................................12
4.1.1. ‘Power’ not illuminated when controller powered ..................................................12
4.1.2. ‘Emergency ON’ illuminated w/Emergency Switch Connected..............................12
4.1.3. No +24V Digital Out ..................................................................................................12
4.1.4. No +5V Digital Out ....................................................................................................12
4.1.5. Relay Switching Failure.............................................................................................13
4.1.6. Damaged Emergency Switch (Fiber)........................................................................13
4.2. Damaged In Shipment .....................................................................................................14
5. Warranty Information ............................................................15
6. Specifications ........................................................................16
6.1. E-STOP Sensor ..................................................................................................................16
6.2. E-STOP Controller Module................................................................................................18
7. Theory of Operation ..............................................................20
8. Application Notes ..................................................................21
8.1. Determining System Loss Budget For Chaining Multiple Switches ..............................21
9. Mechanical Reference Drawings..........................................23
9.1. MR380-1 Controller .........................................................................................................23
9.2. MR382-2 Sensor ..............................................................................................................23

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Table of Figures
Figure 1. MR380 Series Fiber Optic Emergency Switch & MR380 Series Controller
5
Figure 2. Complete Functional System Overview
......................................................... 6
Figure 3. Panel Cut Out Dimensions and Assembly Hierarchy of Emergency Switch
8
Figure 4. Emergency Switch Orientation when Mounting into Optical Block
.............. 8
Figure 5. DIN Rail Mount
................................................................................................ 9
Figure 6. Mounting Clip Mount
....................................................................................... 9
Figure 7. Front Panel Outputs of MR380-1 Series Controller
....................................10
Figure 8. Properly Functioning Controller with Switch Connected and Not Depressed
11
Figure 9. Properly Powered Controller with Depressed Switch, Broken Fiber Link, or High Loss
................................................................................................................................11
Figure 10. LC Loopback MR380-2,-8 Check
...............................................................13
Figure 11 Block Diagram of Basic Theory of Operation for MR380 Fiber Optic E-STOP
20
Figure 12 Example System Using Three MR380-2 Switches at 500m Length
........21

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1.
Product Description
1.1.
Fiber Optic Emergency Stop Switch
Figure 1. MR380 Series Fiber Optic Emergency Switch & MR380 Series Controller
The MR380-2 Emergency Stop Switch paired with MR380-1 series Controller provides a new,
innovative emergency signaling detection that can be deployed in hazardous environments
and over very long distances. The Fiber Optic E-Stop switch employs a photo interrupt scheme
operating over a duplex 50/125µm or 62.5/125µm optical link that allows for reliable signal
detection and implements a known default failure state.
The optical signal levels are rated inherently safe Ex op is, allowing the system to be safely
deployed in any type of explosive atmosphere or hazardous location. The entire fiber optic
sensor system has a generous system loss budget, allowing for long distance, complex
routing, and daisy chaining of multiple switches.
Depressing the switch interrupts the optical signal and the Controller provides both Double
Pole Double Throw (DPDT) relay contacts and digital outputs for signal and control. The
controller will indicate if there is a broken fiber connection or depressed switch in the system
which provides increased safety margin over electrical emergency switches. The controller will
always default to the emergency state when: the switch is depressed, in case of a broken
fiber, in case of a fiber being disconnected or loss of power to the controller unit.
Figure 2 provides a complete functional overview of the emergency switch system.

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1.2.
Fields of Application
•Hazardous Environments: Oil & gas mining/extracting, refining
•Medical: MRI environment
•Energy Distribution: E-Switch maybe deployed next to high voltage lines
1.3.
Features
EMI/RFI Immune
Wide System Loss Budget
Complex Routing Capability
Long Distance Signaling without Interference
Multiple Switches in Series
Immune to High Voltage Lines
Immune to Lightening
Inherently Safe Mechanical Apparatus
Multiple E-STOP Switches Can Be Daisy Chained
Double Pole Double Throw Relay Output
Digital Signal Out
ESTOP sensor available with either 50/125µm or 62.5/125µm pigtails
Universal DIN Rail Mountable Controller, works with both 50/125 µm and
62.5/125 µm multimode fiber links
Emergency Switch
Optional Switches
in Series
24V Out
5V Out
NC2
CM2
NO2
NC1
NO1
CM1
MR380-1 Controller
Module
‘POWER’
‘EMERGENCY ON’
Figure 2. Complete Functional System Overview

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2.
Standard Contents
MR380-X ESTOP Sensor:
•MR380-X-YY with multimode fiber size and pigtail length as ordered by customer,
terminated with LC duplex connector.
•2-56 x 1/8 Pan Head Phillips Screws, Qty 2
•Instruction Manual (this document, one soft copy supplied with each shipment)
MR380-1 Controller Module:
•MR380-1 Universal Controller Module
•Phoenix Terminal Block(1879599) inserted as part of unit
•Instruction Manual (this document, one soft copy supplied with each shipment)

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3.
Installation and Operation
3.1.
Mounting the Emergency Switch
For mounting the sensor switch into a panel, please provide a cut-out as dimensionally shown
in
Figure 3
and Mechanical Reference Drawing. Refer to
Figure 4
for switch orientation.
Secure panel-mount switch with all appropriate designations and requirements.
Mushroom Push Button
Mounting Nut
Panel Lock Washer
Gasket
2-56 x 1/8
Panhead Philips
Screws
Figure 3. Panel Cut Out Dimensions and Assembly Hierarchy of Emergency Switch
Figure 4. Emergency Switch Orientation when Mounting into Optical Block

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3.2.
Mounting the Controller Module
The controller unit mounts on DIN rails as well as a single mounting clip. Both mounting
schemes are shown below in Figures 5 and 6.
Figure 5. DIN Rail Mount
Figure 6. Mounting Clip Mount

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3.3.
Connecting the Controller
An LC Duplex optical cable is used to interconnect the sensor and controller. The sensor
incorporates a 3m optical pigtail (or alternate length as specified by customer). If a longer
connection to the controller is required, then an extension cable having LC duplex connector
may be used.
Remove LC Duplex connector's dust cap(s) and open the external shutter of the controller.
When inserting the LC Duplex connector, there should be a positive click when the connector
is engaged properly. Avoid repeated fiber optic disconnects to reduce likelihood of surface
contamination.
Electrical Connections MR380-1 Controller
The contact on the controller module uses a Phoenix Contact screw terminal. For more
information, consult Controller specifications given in Section 6.2 . If connectors are lost or
damaged, contact Micronor Sales for replacement details.
MR380-1 Fiber Optic E-STOP Controller Module
Terminal
Description
For Typical Emergency Stop Operation
Connect to Terminals 5 & 6 or 8 & 9
1 +24VDC Power Supply
STATE TABLE
2 Ground Input
Module
Powered
Module Not
Powered
Switch
ON
Switch
OFF
Switch
ON/OFF
3 Digital 24V Normally High LOW HIGH -
4 Digital 5V Normally High LOW HIGH -
5 Normally Closed Relay Contact 2 OPEN CLOSED OPEN
6 Common Relay Contact 2 - - -
7 Normally Open Relay Contact 2 CLOSED OPEN CLOSED
8 Normally Closed Relay Contact 1 OPEN CLOSED OPEN
9 Common Relay Contact 1 - - -
10 Normally Open Relay Contact 1 CLOSED OPEN CLOSED
Camarillo, CA USA
T [phone]
F [phone]
www.micronor.com
MADE IN USA
Product conforms to 21 CFR 1040 and
IEC 60825-1:2004 at date of manufacture:
DEPENDENT ON PART NUMBER
Figure 7. Front Panel Outputs of MR380-1 Series Controller
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