Micronor MR330 Series User manual

© COPYRIGHT 2011-2016 MICRONOR INC.
CAMARILLO, CALIFORNIA
UNITED STATES OF AMERICA
MICRONOR INC.
900 Calle Plano, Suite K
Camarillo, CA 93012 USA
PH [phone]
FX [phone]
[e-mail]
www.micronor.com
For Support in Europe:
MICRONOR AG
Pumpwerkstrasse 32
CH-8105 Regensdorf
Switzerland
PH [phone]
FX [phone]
[e-mail]
www.micronor.com
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 rightsare 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.
MR330 Series
ZapFREE® Fiber Optic
Absolute Encoder System
Instruction Manual
Doc No: 98-0330-11
Revision G dated 08-08-2016

MICRONOR INC.
MR330 Fiber Optic Position Sensor System
Page 2 of 62
Revision History
Revision
Date
Notes
A
1 – July – 2011
Initial Release
B
1 – July – 2011
Added Modbus and SSI Description
C
9 – July – 2011
Production Release
D
January – 2014
Feature Updates, 14-bit Resolution Capability, SSI Display in
ZapView, & Added MR338
E
May – 2014
Sensor Pairing without Software Procedure Update
F
October – 2015
Updated to New Camarillo Address and Telephone Number
G
8-August-2016
Ex, Specifications, Appearance, and Formatting Updates
Added reference to IECEx Test Report

MICRONOR INC.
MR330 Fiber Optic Position Sensor System
Page 3 of 62
Table of Contents
Revision History ..........................................................................................................................................2
1. Product Description.............................................................................................................................5
1.1 Position Sensor Background .......................................................................................... 5
1.2 Fiber Optic Position Sensor ............................................................................................ 5
1.3 Features........................................................................................................................... 6
2. Initial Preparation................................................................................................................................7
2.1 Unpacking and Inspection .............................................................................................. 7
2.2 Damage in Shipment ...................................................................................................... 7
2.3 Standard Contents.......................................................................................................... 7
3. Installation and Operation ..................................................................................................................8
3.1 Mounting the Sensor Unit............................................................................................... 8
3.2 Mounting the Controller Unit .......................................................................................... 9
3.3 Connecting the Controller.............................................................................................10
3.4 System Start-Up without PC Computer ........................................................................13
3.5 Functional System Overview.........................................................................................14
3.6 Turn-Counter or Turn-Counter Size...............................................................................16
3.7 Multi-Turn Operation .....................................................................................................17
3.8 Battery Backup for Multi-Turn Operation.....................................................................18
3.9 SSI Interface ..................................................................................................................18
3.10 Voltage Output...............................................................................................................20
3.11 Isolated Current Output (4-20mA)................................................................................22
3.12 Digital Set Points...........................................................................................................23
4. Serial Communication – MODBUS.................................................................................................. 25
4.1 USB-Serial Emulator......................................................................................................25
4.2 Serial Interface Specification .......................................................................................26
4.3 Physical Connection for ModBus operation ................................................................26
4.4 Serial Bus Termination Resistor...................................................................................27
4.5 MODBUS Communications Protocol ............................................................................27
5. MR330 - Error Handling and Troubleshooting................................................................................ 34
5.1 Explanation of Status and Error Handling ...................................................................34
5.2 Explanation of Status and Error Indication..................................................................34
5.3 Reading the Error Counters..........................................................................................38
5.4 About Statistical Read Error Determination ................................................................38
5.5 Warranty Information ....................................................................................................40
6. Specifications................................................................................................................................... 41

MICRONOR INC.
MR330 Fiber Optic Position Sensor System
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6.1 MR332 Sensor Specifications......................................................................................41
6.2 MR338 MRI Safe Sensor Specifications .....................................................................42
6.3 MR330 Controller Specification...................................................................................43
7. ZapView™ Software.......................................................................................................................... 44
7.1 ZapView™ - MR330 Setup Software Installation Guide .............................................46
7.2 ZapView™ - Serves as Substitute SSI Display .............................................................50
8. MR330 Theory of Operation ............................................................................................................ 54
9. Mechanical Reference Drawings..................................................................................................... 57
9.1 MR330-1 Controller ......................................................................................................57
9.2 MR332 Sensor ..............................................................................................................57
9.3 MR338 Sensor ..............................................................................................................57
9.4 MR330 Series Declaration of Conformity....................................................................57
List of Figures
Figure 1. Micronor MR330 Fiber Optic Position Sensor System .............................................. 5
Figure 2. Sensor mounted using Servo Clamps.......................................................................... 8
Figure 3. Mounting MR330 Controller on DIN Rail..................................................................... 9
Figure 4. How to insert and remove wires from WAGO plug....................................................11
Figure 5. Inserting/Removing WAGO plug from MR330 unit...................................................12
Figure 6. Block Diagram of MR330 System..............................................................................15
Figure 7. SSI Interface Connector - J2 (10 pin).........................................................................18
Figure 8. SSI Termination Resistor Switch ................................................................................19
Figure 9. SSI Single Transmission Timing .................................................................................19
Figure 10. Mode 1 Voltage Output ...........................................................................................20
Figure 11. Mode 2 Voltage Output ............................................................................................21
Figure 12. Mode 3 Voltage Output ............................................................................................21
Figure 13. Analog Output with an oscillating shaft input .........................................................22
Figure 14. Mode 1 Current Output ............................................................................................23
Figure 15. Mode 2 Current Output ............................................................................................23
Figure 16. Photograph of MR232-1 RS422/RS485-to-RS232 Adapter Cable. .....................46
Figure 17. Block Diagram of the Fiber Optic Position Sensor System ....................................54
Figure 18. Sensor Head Principle of operation.........................................................................55
Figure 19. Light pattern on disk.................................................................................................55
Figure 20. Code Disk Pattern Representation ..........................................................................56
List of Tables
Table 1. Table of Error Codes.....................................................................................................36

MICRONOR INC.
MR330 Fiber Optic Position Sensor System
Page 5 of 62
1. Product Description
1.1 Position Sensor Background
Position sensors are typically used to provide an absolute position from a mechanical moving
device to a controller unit. The position information is either used to measure a position or to
close the servo loop for an automatic positioning system. The key characteristics of an
absolute position sensor are:
•Accuracy
•Resolution
•Time response of the actual position
1.2 Fiber Optic Position Sensor
The MR330 series fiber optic position sensor system is an innovative all-optical design
immune to any electro-magnetic interference such as lightning, radiation, magnetic fields and
other harsh environmental conditions. The fiber optic aspect of the sensor also makes it
perfectly suited for long distance position sensing over hundreds of meters without being
affected by ground loop problems. This innovative product measures absolute angular
position from 0° to 360° with 14-bit resolution at speeds exceeding 2500 rpm and distances
up to 300 meters.
Figure 1. Micronor MR330 Fiber Optic Position Sensor System
The sensor modulates the optical signal based on the exact position of the sensor disk. This
modulated optical signal is analyzed within the controller and translated into the position
signal. Because the sensor is electrically passive it can be deployed in EMI/RFI intense
environment without being disturbed by such interference.
The position signal is measured and updated at a rate of 1.2 kHz. The controller provides a
host of interface capabilities such scalable analog voltage and current outputs, digital SSI
(Serial Synchronous Interface) output and a MODBUS compatible serial interface.