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Micronor MR330 Series Instruction Manual

Zapfree fiber optic absolute encoder system
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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.
MR330 Series
ZapFREE® Fiber Optic
Absolute Encoder System
Instruction Manual
Doc No: 98-0330-11
Revision G dated 08-08-2016
Notice of Proprietary Rights
©
COPYRIGHT 2011-2016 MICRONOR INC.
CAMARILLO, CALIFORNIA
UNITED STATES OF AMERICA
MICRONOR INC.
900 Calle Plano, Suite K
Camarillo, CA 93012 USA
PH +1-805-389-6600
FX +1-805-389-6605
sales@micronor.com
www.micronor.com
For Support in Europe:
MICRONOR AG
Pumpwerkstrasse 32
CH-8105 Regensdorf
Switzerland
PH +41-44-843-4020
FX +41-44-843-4039
sales@micronor.ch
www.micronor.com

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  • Page 1 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.

  • Page 2: Revision History

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Revision History Revision Date Notes 1 – July – 2011 Initial Release 1 – July – 2011 Added Modbus and SSI Description 9 – July – 2011 Production Release January – 2014 Feature Updates, 14-bit Resolution Capability, SSI Display in ZapView, &...

  • Page 3: Table Of Contents

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Table of Contents Revision History ............................2 Product Description ..........................5 Position Sensor Background ..................5 Fiber Optic Position Sensor .................... 5 Features ........................... 6 Initial Preparation ..........................7 Unpacking and Inspection ....................7 Damage in Shipment ......................
  • Page 4 MR338 Sensor ......................57 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.

  • Page 5: Product Description

    • Time response of the actual position 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.

  • Page 6: Features

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Features • Absolute Angular Position with 14-bit (13,950) Resolution • Multi-turn tracking to 12-bits (4096 turns) • Immune to Electrical Interference • Zero Emitted Electrical Radiation • Long Distance Transmission without Interference •...

  • Page 7: Initial Preparation

    Account for and inspect each item before the carton is discarded. In the event of a damaged instrument, write or call your nearest MICRONOR office in the U.S. A. Please retain the shipping container in case reshipment is required for any reason.

  • Page 8: Installation And Operation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Installation and Operation Mounting the Sensor Unit The sensor unit has a 58mm flange. Use at least 3 clamp nuts to secure the sensor to the shaft. A set of 3 clamps with screws can be ordered as model MR332A.

  • Page 9: Mounting The Controller Unit

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Mounting the Controller Unit The controller unit may be best mounted on DIN rails. There are two clamps on the bottom of the unit. Slide the unit onto the DIN rail starting from top and hook the bottom onto the rail.

  • Page 10: Connecting The Controller

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Connecting the Controller A duplex fiber optic cable is used to interconnect the sensor and controller. The sensor incorporates a 3m optical pigtail (or as specified by customer). If a longer connection to the controller is required then an extension fiber cable having duplex LC connector may be used.

  • Page 11: Figure 4. How To Insert And Remove Wires From Wago Plug

    MICRONOR INC. MR330 Fiber Optic Position Sensor System All three Terminal Connectors are WAGO type Mini Multi Connection System with 2.5mm spacing. One each of these connectors are included. WAGO Connector Part Numbers for Terminal Connectors Location MICRONOR PN WAGO PN...

  • Page 12: Figure 5. Inserting/Removing Wago Plug From Mr330 Unit

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Apply 24VDC electrical power to the controller unit. The current consumption is typically 70mA and should be less then 100mA at all times. The controller PWR LED will light up. A steady light indicates proper operation and the sensor is installed correctly.

  • Page 13: System Start-Up Without Pc Computer

    System Start-Up without PC Computer It is recommended to use a PC (laptop) computer when bringing an MR330 Position Sensing System on-line. Micronor provides the ZapView™ software for setting parameters and for diagnostics of the system. Checking the system after installation with ZapView™ provides assurance that the installation is complete and the system functions perfectly.

  • Page 14: Functional System Overview

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Pairing sensor and controller without a PC and ZapView™ : Connect the system and make sure you have access to the sensor, so that the sensor can be rotated during the pairing process. If the machine can slowly drive (~60rpm or higher) the sensor then that would work well.

  • Page 15: Figure 6. Block Diagram Of Mr330 System

    MICRONOR INC. MR330 Fiber Optic Position Sensor System pos_full RS422/485 pos_rprt Absolute Single turn 13-bit Turn Current Scaling Counter 12bit Voltage Scaling Set-Point 1 Set-Point 2 ZERO Indicator RESET Figure 6. Block Diagram of MR330 System The Serial Interface conforms to the MODBUS standard and is the main communications interface, specifically also for setup and configuration purposes.

  • Page 16: Turn-Counter Or Turn-Counter Size

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Two independent digital Set-Point outputs provide a Limit Switch like behavior. These outputs can be programmed to turn ON or OFF at a specific position with the full 25-bit range available. These outputs can drive or sink approximately 10mA at 24V An additional digital output is tied together with the Zero LED indicator and the output goes high when the unit is at the zero or home position.

  • Page 17: Multi-Turn Operation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Example: The application needs to measure a position over 12.4 turns. The next binary number is at 16 and therefore the turn counter should be programmed to count to at least 16 turns. For this to take effect set the turn counter variable to 4, because 2 equals 16.

  • Page 18: Battery Backup For Multi-Turn Operation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Battery Backup for Multi-Turn Operation The quasi multi-turn operation as described in the previous section is not fail-safe. A better method is to use a Battery backup and keep the unit powered up even over prolonged power outages.

  • Page 19: Figure 8. Ssi Termination Resistor Switch

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Termination Resistor For long link length and high clock rate it may be necessary to terminate the Clock line at the MR330 in order to avoid reflective signal interference. There is already such a resistor available and the resistor maybe configured manually.

  • Page 20: 3.10 Voltage Output

    MICRONOR INC. MR330 Fiber Optic Position Sensor System J2 Connections Data SSI and Analog Output ±10V position output SSI Clock + SSI Clock - SSI Data + SSI Data - +24V IN 4-20mA Out + 4-20mA Out - In ZapView™ select page: ‘SSI Interface”...

  • Page 21: Figure 11. Mode 2 Voltage Output

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MODE 2 lets the user program the output voltage based on a scale value. The output is 0 when the position is 0 and will reach +10V when the position reaches the scale value.

  • Page 22: Isolated Current Output (4-20Ma)

    MICRONOR INC. MR330 Fiber Optic Position Sensor System V: 2V/DIV H: 50ms/DIV Analog Output while input shaft is being oscillated with an amplitude of ±45° at a frequency of 7Hz. © = 44.3r/s Figure 13. Analog Output with an oscillating shaft input In ZapView™...

  • Page 23: 3.12 Digital Set Points

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MODE 1 automatically sets the Scale to 8192. It outputs 4mA when position is 0 and 20mA when position is 8191. Output wraps around back to 4mA when position changes from 8191 to 0 at the completion of one turn. This wrap around occurs regardless of the Turn Mask setting.
  • Page 24 MICRONOR INC. MR330 Fiber Optic Position Sensor System To program, simply define the point in position counts where the output should turn ON (Set_Point_ON) and then define the point where the output should turn OFF again. Should the output be inverted; reverse the position points of the two entries and the output will switch at the same position but with the reversed sign.

  • Page 25: Serial Communication - Modbus

    ZapView™ software, which is supplied with the unit. To run ZapView™ you must have a Personal Computer available with a USB interface. If a USB interface is not available then a serial interface plus the MICRONOR RS232 to RS422/RS485 converter cable model RS232-1 (must be purchased separately) maybe used.

  • Page 26: Serial Interface Specification

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Serial Interface Specification • RS-422/RS485 Duplex addressable bus interface • Baud rate programmable: 9,600 / 19,200 / 38,400 / 57,200 or 11,5200 baud • 1 Start Bit • 8 Data Bits • 1 Stop Bit •...

  • Page 27: Serial Bus Termination Resistor

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Two Wire Configuration: Bus - Master MR330 – J3 1 - GND 2 - +5V RXTXD1 3 - TX+ RXTXD0 4 - TX- 5 - RCV+ 6 - RCV- Serial Bus Termination Resistor The MR330 does have a user configurable internal 125&...
  • Page 28  What Is ZapView™ Setup Software? MICRONOR provides ZapView™ a user friendly setup program free of charge along with the purchase of the MR330 system. ZapView runs on Windows XP, Vista, Windows 7 and requires .net Framework4.0 to be on the machine.
  • Page 29 MICRONOR INC. MR330 Fiber Optic Position Sensor System These Registers can be written using Function FC10 using identical address offset Register Register Name Range Description Address Number regs 0x000 0x001 System Status Returns the system status. num register = 1 : reads status only num register = 3 : reads status &...
  • Page 30 MICRONOR INC. MR330 Fiber Optic Position Sensor System Hardware calibration value for current output 0x136 0x137 Turn Counter 0 - 11 Depth of Turn Counter in binary increments User sets this value depending how far the turn counter should count until resetting to...
  • Page 31 MICRONOR INC. MR330 Fiber Optic Position Sensor System 0x204 0x205 Current Mode 0 – 2 Defines the output mode for the current output. 0 = OFF current is < 300uA. 1 = Single Turn 4 to 20mA 2 = Multi Turn 4 to 20mA...
  • Page 32 MICRONOR INC. MR330 Fiber Optic Position Sensor System 0x307 0x308 0x330 0x331 DAC 1, Chan 1 Internal Digital to Analog Converter Value Positive Voltage Output 0x331 0x332 DAC 1, Chan 2 Internal Digital to Analog Converter Value Negative Voltage Output...
  • Page 33 MICRONOR INC. MR330 Fiber Optic Position Sensor System FUNCTION FC05 – Write Single Coil Single Coil commands are used to trigger an action. Register Register Name Description Address Number 0x001 0x002 Device Reset Same as a Power OFF and Power ON cycle.

  • Page 34: Mr330 - Error Handling And Troubleshooting

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MR330 - Error Handling and Troubleshooting Explanation of Status and Error Handling The MR330 incorporates a sophisticated integrity monitoring, error and failure reporting system. There are four Error Groups: 1. EEPROM At start-up the EEPROM checksum and EEPROM data integrity are checked.
  • Page 35 MICRONOR INC. MR330 Fiber Optic Position Sensor System Table 1 lists all the status and error report possibilities. Error Groups Group 4 Group 3 pos_full RS422/485 pos_rprt Absolute Single turn 13bit Current Turn Scaling Counter 12bit Voltage Scaling Group 1...

  • Page 36: Table 1. Table Of Error Codes

    User should read all parameters recycle Power code and verify proper settings and then save parameters again using Micronor Zappy software. EEPROM Checksum Low Bank One set of data in EEPROM shows a bad checksum. Firmware checksum failure low bank automatically corrects the error.
  • Page 37 MICRONOR INC. MR330 Fiber Optic Position Sensor System Position Sensor Failures Description Remedy How Cleared Announced User should use ZAPPY Push-button will Blink 3x Sensor Not Paired software and follow the clear this error. System detected that the sensor is not paired procedure ‘Pairing Sensor”...

  • Page 38: Reading The Error Counters

    MICRONOR INC. MR330 Fiber Optic Position Sensor System 1029 CMD Wrong Value Consult the user instruction self-clear Blink 1x for the permissible after one blink once The data value was outside the parameter values allowed in permissible range for this parameter.
  • Page 39 MICRONOR INC. MR330 Fiber Optic Position Sensor System T1 < 1024 Inc T1 T2 < Inc T2 NewErr T1 < 1024 Log Error (1024) T2<56 Log Error (56000) Reset T1 Reset T2 Clear New Error Page 39 of 62...

  • Page 40: Warranty Information

    Warranty Information Warranty MICRONOR INC. 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.

  • Page 41: Specifications

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Specifications MR332 Sensor Specifications Measurement Parameters Measurement Range 0° to 360° Resolution 13 bits (8,192 counts), 14 bits (13,950 counts, 0.025° ) Maximum RPM 2,500 RPM For Position Reading; Mechanical limit 6,500 RPM...

  • Page 42: Mr338 Mri Safe Sensor Specifications

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MR338 MRI Safe Sensor Specifications Measurement Parameters Measurement Range 0° to 360° Resolution 13 bits (8,192 counts), 14 bits (13,950 counts, 0.025° ) Maximum RPM 2,500 RPM For Position Reading; Mechanical limit 6,500 RPM...

  • Page 43: Mr330 Controller Specification

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MR330 Controller Specification Position Measurement Single Turn Resolution 13 bits(8192 , 0.044° ), 14 bits (13,950, 0.025° ) Multi-Turn Tracking 12 bits (4096 counts) Electrical Interfaces 25 bits, Programmable baudrate 25 kHz – 250 kHz...

  • Page 44: Zapview™ Software

    MR330 Fiber Optic Position Sensor System ZapView™ Software Micronor provides ZapView with the MR330 Controller Module. ZapView™ runs on: Windows 7, Vista, or XP with SP3 and with .net Framework 4.0 installed. ZapView  can be used to pre- program MR330 parameters associated with the various Auxiliary Functions, such as programming the scale of the analog outputs, or it can be simply used to verify the proper operation of the position sensor system.
  • Page 45 MICRONOR INC. MR330 Fiber Optic Position Sensor System The ZapView software displays the parameters that the MR330 system is currently using for its operating configuration. The MR330 system has EEPROM storage capability so that if the power is lost the parameters that have been stored are remembered when the power is restored.

  • Page 46: Zapview™ - Mr330 Setup Software Installation Guide

    Figure 16. Photograph of MR232-1 RS422/RS485-to-RS232 Adapter Cable. ZapView™ - MR330 Setup Software Installation Guide ZapView™: PC Software for configuring the Parameters of the Micronor MR330 Fiber Optic Position Sensor and for familiarization with the many features of the unit.
  • Page 47 MICRONOR INC. MR330 Fiber Optic Position Sensor System The problem may be that the required .NET FRAMEWORK 4.0 Client is not installed on the PC. Select Cancel and install the .NET FRAMEWORK 4.0 Client. To install the .NET FRAMEWORK 4.0 Client on the PC, Run the file “dotNetFx40_Client_x86_x64.exe”...
  • Page 48 MICRONOR INC. MR330 Fiber Optic Position Sensor System Step 7: For better performance configure the COM port Latency to 2 mS . This is configured under Computer Management \ Device Manager \ Ports (COM & LPT) (NOTE: the COM port needs to be connected and the MR330 Controller must be power up for the COM to be visible on the PC ) Select the USB Serial Port (COMx) \ Port Settings.
  • Page 49 MICRONOR INC. MR330 Fiber Optic Position Sensor System The PC Serial Port Setup window will pop –up: Select the Serial Interface COM port on the PC that is connecting to the MR330 Controller. The baud rate Is 57600 (default). After selecting the Com Port and Baud Rate, select Open.

  • Page 50: Zapview™ - Serves As Substitute Ssi Display

    MICRONOR INC. MR330 Fiber Optic Position Sensor System ZapView™ - Serves as Substitute SSI Display Synchronous Serial Interface (SSI) displays are used to visualize measurement results. ZapView™ software incorporates the functionality of such an SSI display in order to simulate and visualize an externally connected actual SSI display.
  • Page 51 MICRONOR INC. MR330 Fiber Optic Position Sensor System The SSI interface and the display are based on integer numbers only. In order to achieve a fractional readout, the decimal point of the display can be set by the user. This allows for displaying fractional numbers such as 24.567m, 34.7°...
  • Page 52 MICRONOR INC. MR330 Fiber Optic Position Sensor System Example: Assume the MR330/MR332 position sensor is coupled to a measuring wheel. The measuring wheel has a diameter of 53mm. Thus for each full turn of the encoder a distance of 53mm * À...
  • Page 53 MICRONOR INC. MR330 Fiber Optic Position Sensor System In order to achieve a readout of 0.01mm the decimal point was set at position 2 which is the equivalent of a dividing the readout by 100. This is the reason why the parameter D is 10,000 and not 1,000,000 as calculated.

  • Page 54: Mr330 Theory Of Operation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System MR330 Theory of Operation The functional block diagram shows the two main components The Sensor is connected by a duplex fiber optic cable of readily available 62.5/125um multi-mode fiber. The transmit fiber guides an optical pulse from a broadband light source to the position interrogation.

  • Page 55: Figure 18. Sensor Head Principle Of Operation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System As shown in Figure 18, the sensor head contains only highly inert optical components and is immune to any electrical interference whatsoever. A rotating disk mounted on precision bearings contains a unique pattern which unambiguously references the angular position of the disk.

  • Page 56: Figure 20. Code Disk Pattern Representation

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Figure 20. Code Disk Pattern Representation The bit pattern as shown in Figure 20 is being analyzed and via a look-up table the exact position is calculated. The position signal is scaled and output to the user via serial interface, Modbus interface and analog outputs.

  • Page 57: Mechanical Reference Drawings

    MICRONOR INC. MR330 Fiber Optic Position Sensor System Mechanical Reference Drawings These reference drawings can be found on the following pages. MR330-1 Controller MR332 Sensor MR338 Sensor MR330 Series Declaration of Conformity Page 57 of 62...
  • Page 61 MATERIAL SIZE DWG. NO. DRAWING IS THE SOLE PROPERTY OF MR338-X10CXX NOTES: UNLESS OTHERWISE SPECIFIED MICRONOR CORPORATION. ANY FINISH REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF MICRONOR CORPORATION IS SCALE: 1:1 WEIGHT: SHEET 1 OF 1 PROHIBITED.
  • Page 62 900 Calle Plano, Suite K Camarillo, CA 93012 USA T +1-805-389-6600 F +1-805-389-6605 www.micronor.com Declaration of Conformity Micronor Inc. 900 Calle Plano, Suite K, Camarillo, CA 93012, USA declare that the product Fiber Optic Incremental Encoder System Item Code(s) Controller Module...

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