Home

manual - Micronor Inc.

1. RUNI RR RM Z1 2 LED sDO NOT Light UD siii Qa eee eee aet eerie eo eaae esee 7 2 INTERFACE PROBU EMS 0 eR e trente ee e ene deae do ege de e ees aan deae ede e 7 2 1 Testing The USB Interface 72 2 Testing The Serial Cable un 1 nu una er a ER CLER 7 3 FIBER OPTIC CONNECTOR CLEANING 7 3 1 WET Cleaning 73 2 DRY Cleaning Method Micronor MR321C DRY Cleaning Kit 7 4 TROUBLESHOOTING R u ayna 7 5 How VERIFY VISUAL CONTINUITY OF FIBER OPTIC CABLE nn sansa 7 6 BLINKINGIERRORGODES 52 km m ORIS o PUER eT DidddxiqeXennsVds c seora ss 75 Page 4 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System List of Figures Figure 1 Shafted Encoder Face Mount via Counter Bored Panel 20 Figure 2 Shafted Encoder Mounting via Thru Hole With Synchro Clamps 21 Figure Hollow Shaft Encoder Mounting Options 2 23 Figure 4 Mounting MR320 Controller on DIN Rail esses eren eene enne nnne nnne nnn
2. 13 3 6 MR328 SIZE 58MM MRI COMPATIBLE SENSOR a 15 4 ANITIAL PREPARATION vine eret A l S T sn q R SQ a S etae DS ene S 16 4 1 STANDARD CONTENTS re c v ea Fax oue Lo ea Fo e oi cma 4 2 UNPACKING AND INSPECTION 4 3 DAMAGE IN SHIPMENT k st E e Senses pipu RENE cede ER OSSA PEE ERRER 5 INSTALLATION GUIDELINES eorr eere euo eee ae eno eee ey ve eoe es aane ge Vega e eeu use euo e eee e Vega euo eve sus ege guo 17 5 1 SYSTEMIPEANN ING a u rot eae eerte REM up SW eux 17 5 2 MOUNTING THE SOLID SHAFT ENCODER 5 5 85 1 1 nennen nnns n n nhan 18 5 2 1 Face Mount to Counter Bored Panel 19 5 2 2 Thru Hole Panel Mount with Hold Down Synchro Clamps 21 5 3 MOUNTING THE HOLLOW SHAFT ROTARY ENCODER I sanis sesenta nn 5 4 MOUNTING THE CONTROLLER MODUIE sterne raga ds ases ene 5 5 MAKING OPTICAL CONNECTION TO THE CONTROLLER MODULE
3. FEATURE Input Fiber Loss Output Fiber Loss Total 2 Way Loss dB dB dB MR320 Duplex 0 5 0 5 1 0 100 meter Span 0 35 0 35 0 7 3 5dB km Duplex LC 0 5 0 5 1 0 Interconnection of the two spans 1000 meter Span 3 5 3 5 7 0 3 5dB km MR324 Sensor 0 5 0 5 1 0 Duplex LC Connection TOTAL 2 WAY 10 7 LOSS 3 Follow industry standard installation practices and trained fiber installers ba Follow Proper Installation Practices For Your Industry e Different industries or applications may have standards related to fiber optic installations Examples BICSI for LAN and telecom installations ISA or EU for hazardous locations ARINC for civil and military air transport platforms U S Navy for shipboard applications SAE for generic aerospace applications etc e Always follow best practices with regards to bend radius flex clamping and routing conventions In fiber cable installations excess bends and improper clamping produce additional losses that is not accounted for in the loss budget and shouldn t be there anyway e Always place a dust cover over an open connector to prevent dirt from accumulating on the ferrule end e Always wipe a connector endface clean before mating 5 2 Mounting the Solid Shaft Encoder Sensors Applicable Models MR322 MR326 and MR328 sensors Consult reference drawing in Appendix A for most current mounting and dimensional in
4. 1 063 27 0 827 21 lien sit 0 0000 0 a 0 591 15 00 4724 0 0007 12 0 018 0 394 10 0 004 0 1 A D3 149 79 98 10 0 197 5 9 1 053 543 90 0 0000 0 3 1496 0 001 0 035 0 008 0 2 A meted 0 0 1575 0 0012 4 0 03 0 000 0 1 575 0 001 40 0 025 4 36 110 7 a 0 98 25 PART NUMBER ORDERING CODE MOUNTING PANEL MR326 12 DOO RESOLUTION C 256 SHAFT SIZE IN MILLIMETERS 12 12MM SHAFT OPTICAL CONNECTOR DOO INDUSTRIAL LC DUPLEX CONNECTOR TEMPERATURE RANGE STANDA 40 C TO 80 3 WARNING KEEP CONNECTOR COVERS IN PLACE DURING STORAGE TO PROTECT FIBER OPTIC INTERFACES 2 WARNING DO NOT DROP UNIT DROPPING OR OTHER SEVERE SHOCK IMPACTS MAY DAMAGE UNIT 1 ALWAYS USE FLEXIBLE COUPLING WHEN MOUNTING SHAFT TO EXTERNAL EQUIPMENT NOTES UNLESS OTHERWISE SPECIFIED 6X 0 250 6 35 THRU 0 100 0 002 2 55 0 050 4 0 7 6H 0 47 12 DP MIN TAP DRILL 0 63 16MM DP MIN OPTICAL ENCODER SUGGESTED MOUNTING PANEL WITH SERVO CLAMPS 3 151 80 04 THRU MIN 1 577 40 06 THRU MIN SUGGESTED MOUNTING PANEL WITH MOUNTING SCREWS MICRONOR INC NEWBURY PARK CA 805 499 0114 TITLE SENSOR INDUSTRIAL PROHIBITED PROPRIETARY AND CONFIDENTIAL THE INFORMATION CONTAINED IN THIS
5. automation components MR320 Series ZapFREE Fiber Optic Incremental Encoder System and ZAPPY Software Technical Manual Doc No 98 0320 08 Rev C 10 5 2015 MICRONOR INC 900 Calle Plano Suite K Camarillo CA 93012 USA Tel 1 805 389 6600 Fax 1 805 389 6605 sales micronor com www micronor com For support in Europe MICRONOR AG Pumpwerkstrasse 32 CH 8105 Regensdorf Switzerland Tel 41 44 843 4020 Fax 41 44 843 4039 sales micronor ch 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 2004 2015 MICRONOR INC CAMARILLO CALIFORNIA UNITED STATES OF AMERICA MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Revision History Revision Date Notes A 1 10 2012 e Includes updated MR320 Controller with embedded USB e Includes new MR324 Pocket Hole Sensor IP65 B 4 22 2013 e Includes new MR324 Pocket Hole Mode
6. Fiber Optic Encoder System B E 101 60 4 00 UNITMOUNTS ONTO STANDARD 35MM DIN RAIL PIN 10FWAGO PLUG IS INDICA TED BY NOTCH IN 13 LOWER LEFT HAND CORNER J1 J2 RESETBUTION ACCESSHOLE J1WAGO PN 733 112 J2WAGO PN 733 110 J3 WAGO PN 733 106 12 PIN TERMINA L 10 PIN TERMINAL 6 PIN TERMINAL 1 A 1 DivA 1 GND 2 A 2 DivA 2 45VOut 3 GND 3 GND 3 4 B 4 Div B 4 T 5 B 5 Div B 5 RCV 6 GND 6 GND 6 RCV 7 App 7 GND 8 Bpp 8 10V Out 9 GND 9 GND 10 Vs 10 4 20mA Out 11 reset ESSE m 7 7 Tm OPTICAL ENCODER WEE i owe NG NOTES UNLESS O THERWISE SPEC IFIED 2 MR320 C PROHIBITED DO NOTSCALE DRAWING SCALE 1 1 WEIGHT SHEET1 OF 1 54 5 AS DESCRIPTION s 0057 PIGTAIL OPTION 3 001 3 x M4x0 7 6H 7 0 315 8 00 MIN FOR LENGTH AND 0 118 EQ SPCD AS SHOWN SEE TABLE 57 94 052 28 FOR SHAFT DIA AND Pepe MOUNTING PANEL FLATS SEE TABLE SYNCHRO CLAMP 4 29 3X 50 169 THRU 42 00 EQ SPCD AS SHOWN 1 654 OPTICAL ENCODER 50 29 17 0 750 THRU MIN 1 980 2 2 00 SYNCHRO CLAMP 21 980 SUGGESTED PANEL SECTION B B THRU HOLE MOUNT WITH
7. 87 If the Divider function is not used then it should be turned off by setting value to O 6 5 3 RPM Register 22 Register Address 22 The MR320 continuously measures the elapsed time between encoder slits This time period measurement allows accurate calculation of RPM The true RPM can be obtained at any time by requesting the value in register 22 lt gt 22 lt ENQ gt Output Format The output is in RPM x 100 12012 gt 120 12RPM Range Lowest RPM is 0 33 and highest is 6 000 Accuracy 1 Resolution 0 1 RPM regardless of scale 1 0 Serial Interface See Section 6 2 for details 6 5 4 Voltage Mode Register 23 Register Address 23 The speed in RPM will be output as analog voltage to the voltage output The programming string for the Voltage Mode is as follows lt EOT gt lt STX gt 23 mode lt gt lt BCC gt Default SPEED Mode Page 54 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System SPEED Modes Description Output corresponds to actual where CCW rotation is negative voltage The voltage output range is OV to 10V when the encoder rotates CW Overrange extends from 10V up to 12V The voltage output range is OV to 10V when the encoder rotates CCW Overrange extends from 10V to 12V Voltage Speed Mode 0 Overrange Overrange SCALE 0 SCALE SPEED 1 Output corresponds to the absolute value of the RPM
8. Wi ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR Home Load Param b t 2 Upload to PC Save to Unit Operate Save Param Encoder Diagnostics Instructions EXIT Available Com Ports ZAPPY TOOLBAR MENU DESCRIPTION HOME Restores ZAPPY HOME page with current software version information LOAD PARAM Allows a pre existing setup file of encoder parameters to be downloaded into the ENCODER table view window SAVE PARAM Allows the existing ENCODER table view parameters to be saved to a file for later access via LOAD PARAM function ENCODER Displays encoder parameters in editable table format From this mode LOAD PARAM SAVE PARAM UPLOAD TO PC and SAVE TO MR320 functions are enabled and can be accessed UPLOAD TO PC Downloads the current parameters from the connected Controller and overwrites the ENCODER parameter view SAVE TO UNIT Uploads the current ENCODER parameter view to the connected MR310 or MR320 Controller module OPERATE Accesses the OPERATE view which displays current encoder status including speed and position counter This function is intended for demo use only and does not serve any other purpose DIAGNOSTICS Provides access to various internal controls and hardware status including voltage test optical source control slit time measurements internal DAC and input amplifier INSTRUCTIONS Short form instruction re
9. 2 Insert the white operating tool into the square hole of the terminal 3 Then insert the stripped wire all the way down and remove the operating tool 4 When wiring completed simply insert the WAGO plug into the appropriate interface connector J1 J2 or J3 To remove the WAGO plug grap top and bottom of plug and pull to disconnect Page 25 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System PIN 1 LOCATION SIDE VIEW WAGO 12 PIN P N 733 112 WAGO 10 PIN P N 733 110 WAGO 6 PIN P N 733 106 WIRE TO BE INSERTED WAGO LOGO ON REMOVER PIN 1 SIDE OF HOUSING INSERT REMOVAL WIRE STRIP LENGTH 5 6MM TERMINAL BLOCK NOTCH MARKS PIN 1 OF WAGO PLUG PULL TERMINAL BLOCK STRAIGHT OUT Figure 8 Inserting Removing the WAGO Plug From The MR320 Controller Module Page 26 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Duplex LC Fiber Optic Connector Port Always keep covered when not in use Pin 1 of WAGO Plug is indicated by notch in lower lefthand corner RESET Access Hole 11 Connections J2 Connections J3 Connections Real Time Quadrature Outputs Divider and RS422 485 Serial 1 0 plus and Power Supply Analog Outputs connection for MR232 1 1 RS422 Line Driver 1 Divider A RS422 Line Driver series Adapter Cable 2 A RS422 Line Driver 5V TTL 1
10. In addition to checksums all parameters are stored twice internally and when retrieved both copies are compared and only restored when there is a match or when it is determined that there is one good copy of the parameter To store parameters into the EEPROM The programming for the Saving parameters to EEPROM lt EOT gt EA lt STX gt 131 lt ETX gt lt gt Check for a lt ACK gt that verifies store has been completed F AJ parameters in EEPROM are always restored at power up There is no special user interaction required to read parameters from the EEPROM Page 67 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 7 Maintenance and Service 7 1 Encoder Will Not Produce Quadrature Signals If you cannot get quadrature signal output on J1 then first make sure if the A and B LEDs on the front panel light up when the encoder shaft is rotated 7 1 1 LED s Do Light Up If the LEDs flicker ON and OFF then it means the encoder quadrature signals are being generated but there still might be a short or disconnect with the wiring Make sure that you are connected to Pin 1 or 2 or 4 or 5 on J1 of the MR320 box t 47 Current Limit of Push Pull Outputs Do not exceed 15mA current Although the outputs are short circuit protected avoid prolonged shorts 7 1 2 LED s Do NOT Light Up If one or both LED s do not light up while rotating the encoder shaft then not enough optical power
11. Includes new MR325 Sensor C 10 5 2015 Update with new Camarillo address Page 2 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Table of Contents T PRODUCT DESCRIPTION Q dees e P S S SSS ES SERRE RIEN SUO usu 6 2 WARRANTY INFORMATION e 7 2 1 LIMITATIONS OF WARRANTY costs 7 2 2 CONTACT INFORMATION 3 SPECIFICATIONS ioniene S a Siaga uh 8 3 1 IMR320 CONTROLLER DS Du a tre ia due io yuuk 8 3 2 MR322 SIZE 58MM SENSOR Sa 10 3 3 MR324 HIGH RESOLUTION HOLLOW SHAFT 5 5 2 0 11 3 4 MR325 SIZE 125MM HIGH RESOLUTION 5 5 0 12 3 5 MR326 SIZE 90MM HEAVY DUTY SENSOR I n
12. me OR OTHER SEVERE SHOCK IMPACTS 5 38 026 10 013 k OPTICAL ENCODER UT 1 4971 0 0005 ee go n S NOTES UNLESS OTHERWISE SPECIFIED a moe MR324 PROHBIED DONOTSCALEDRAWNG SCALE 1 2 WEIGHT SHEET 1 OF 2 REVISIONS a DESCRIPTION APPROVED 35 6 4 30 1 40 NEM 0 169 2 X M2 5 X0 45 6H 12 27 V_0 217 5 50 MIN 0 48 12 00 1 791 1 870 a 11 00 6 00 SHAFT PENETRATION 0 433 0 236 13 40 i SZ 0 528 A Z LMS 35 00 E 1 378 FOR SHAFT POCKET V BORE SEE TABLE 95 00 0 05 03 740 0 002 100 00 053 937 34 93 2X 120 1 375 E 80 00 03 150 RING SUPPLIED 69 00 38 026 0 013 R2 72 1 4971 0 0005 49 88 1 96 6 X M4x0 7 7 6H Y 0 268 6 80 MIN PART NUMBER ORDERING CODE n MR324 38 C R5 DUPLEX LC CONNECTOR ON PIGTAIL 1 5 METER LG TEMPERATURE OPTION BLANK STANDARD 40 C TO 80 C E EXTENDED 60 C TO 150 C RESOLUTION PIGTAIL LENGTH IN METERS 2 WARNING KEEP CONNECTOR COVERS IN PLACE 1024 R DECIMAL POIN
13. Push Pull outputs are available via pins 2 and 5 of J2 Ancillary GND connections are available via pins 3 and 6 of J3 USB Interface Direct connection via Type B receptacle provided RS485 Serial Interface Line driver signals available via pins 3 4 5 and 6 of J3 For RS232 serial communications MR232 1 Converter Cable plugs into J3 VOLTAGE Analog Output This analog output is available on pin 8 of J2 and can be configured to represent position or speed rpm Voltage mode and scale are set using ZAPPY software or as commands issued over the serial interface CURRENT Analog Output This analog output is available on pin 10 of J2 and can be configured to represent position or speed rpm Current mode and scale are set using ZAPPY software or as command issued over serial interface POSITION COUNTER RESET Input This external control signal is available on pin 11 of J1 This signal line allows the 24 bit Internal Counter to be reset to a pre programmed counter value when the input is changed from logic to logic 1 High 24V The reset value is factory preset to O zero The customer may change this reset value to any number by setting the appropriate parameter via configuration software via serial interface commands Section 5 9 shows how to perform a manual RESET Important Power Connection Warnings e Always observe correct polarity of the power supply connections or damage to the C
14. eene nennen enne rn nnns nre 5 6 MAKING ELECTRICAL CONNECTIONS TO THE CONTROLLER MODULE 5 7 FiBER OPTIC CABLE CONNECTIONS AND ROUTING 5 8 FIRST TIME START UP 5 9 MANUAL GAIN CALIBRATION MANUAL RESET 5 10 ZAPPY V INSTALLATION AND SETUP 5 assis sesenta sagas asses enti aa 5 11 INITIAL PERFORMANCE VERIFICATION WITH ZAPPYTM n nasse s entera 6 OPERATION AND DESCRIPTION OF FUNCTIONS 39 6 1 BLOCK DIAGRAM PLE 6 2 FIRMWARE FUNCTIONS AND PROGRAMMING sscccccecsssesescececececseessececececseeeeeseescecseseeaesessceceesesaeseeeceseesesaeeeeeesees 6 2 1 Serial Communications Interface Specification 6 2 2 Communications Protocol 6 2 3 Block Check Character BCC 6 3 CONFIGURATION COMMANDS AND PARAMETERS 6 3 1 Configuration Commands Registers 10 19 6 3 2 User Commands Registers 20 2A Q 6 3 3 Diagnostic Commands Registers 3O 39 ccsccccceessscscessceccessssecsesssssesssecsesssseceessesscsaeeceessssecsesseseeseaeeens 6 4 COMMUNICATIONS PROGRAMMING EXAMPLE n n 6 5 DETAILED D
15. DRAWING IS THE SOLE PROPERTY OF REPRODUCTION IN PART OR AS A WHOLE FINISH 90MM LC DUPLEX SIZE DWG NO REV C MR326 C12D00 SCALE 1 1 WEIGHT SHEET 1 OF 1 1 PIGTAILOPTION FOR LENGTH AND CONNECTOR 54 14 4 00 213 0157 3 00 0 118 SEE TABLE 57 94 02 28 MOUNTING PANEL MOUNTING PANEL 42 00 OPTICAL 01 654 50 29 01 980 N SENI 7 SYNCHRO CLAMP 50 29 SUG G ESTED MOUNTING PANEL 51 980 THRU HO LE MO UNT WITH SYNCHRO CLAMPS PART NUMBER ORDERING CODE 3 x M4x0 7 6H v 0 315 8 00 MIN EQ SPCD AS SHOWN REVISIO NS DESCRIPTION APPROVED NEW RELEASE RGB 4 29 FOR SHAFT DIA AND FLATS SEE TA BLE 3X 50 169 THRU EQ SPCD AS SHOWN 19 50 750 THRU MIN SUG G ESTED MOUNTING PANEL 2 00 0 079 DEEP MIN SEC TION B B COUNTER BO RED PANEL WITH MOUNTING SCREWS NO TES UNLESS O THERWISE SPEC IFIED OTHER SHAFT OPTIONS ARE AVAILABLE 5 MFG APPR RBOYER 9 1 11 MICRONOR INC NEWBURY PARK CA 805 499 0114 THE INFO D IN THIS DRAWING IS THE SOLE PROPERTY OF MICRONORCORPORATION AN ORASA WHOLE FINI REPRO DUCTION IN PART WITHOUT THE WRITTE RMISSION OF M
16. OmA to 20mA uni polar with overrange Mode 6 4mA to 20mA counter window operation Scalable from 10 to 10 000 RPM full scale 10V with 2V over range indication 12V Current Output tracking Position Counter Voltage Output tracking RPM Page 40 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Drives load down to 2k Ohm Mode 0 10V to OV to 10V with 2V over under rage Mode 1 OV to 10V uni polar with 2V over range Programmable Output Low Pass Filter 2ms to 1s Voltage Output tracking Position Counter Scalable from 1 to 8 388 607 counts 10V with 2V over range indication 12V Drives load down to 2k Ohm Mode 2 10V to OV to 10V with 2V over under range Frequency Divided Quadrature e Divider is programmable from 2 to 16 383 Output Independent Line Driver Output from original Quadrature signal e Maintains full quadrature accuracy and direction information Maintains accurate position count Counter depth is 24 bits 23 bits plus sign 8 388 607 May be polled during operation via USB or Serial interface Output scaleable via analog outputs Real Time Position Counter RPM Measurement RPM with better than 0 5 accuracy can be polled via USB or Serial Interface 6 1 Block Diagram Explanation of System Functions To understand the functionality of the ZapFREE Fiber Optic Encoder System it is best to look at the functional b
17. The encoder period is averaged over 800us and calculated using a formula 60 t p n Where V rpm speed in revolutions per minute t p time elapsed for one period n number of slits in encoder wheel 256 typ Page 42 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Note Even though the unit can measure speed values accurately to less than O 5RPM the analog outputs have a useful measurement range from 0 5 to 110 of the scale value as defined by the user Output Update Rate Each D A converter output is updated every 800us However the user must keep in mind that the speed value is derived from the elapsed time between passing slits of the encoder wheel At slow speed the update rate can only be as fast as the time period between passing slits Page 43 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 2 Firmware Functions and Programming The MR320 Controller provides a host of auxiliary functions that the user may choose to use To configure any of these special functions Such as an analog output requires the supplied ZAPPY software running on an IBM Compatible PC running Windows XP VISTA or 7 with an available USB or RS232 serial interface port ZAPPY can also be used to verify installation and proper encoder system operation as well as perform diagnostics and assist troubleshooting 6 2 1 Serial Communications Interface Spec
18. regardless of the direction The output is always from to 10V regardless of direction of rotation Over range extends from 10V up to 12V Voltage Speed Mode 1 Overrange 12 Overrange CCW 12V cw SCALE 0 SCALE SPEED Page 55 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System POSITION Modes Description 2 The output ranges from OV to 10 overrange from 10V to 12V for CW motion with 10V corresponding to the Voltage Scale setting Register 24 The output ranges from OV to 10V overrange from 10V to 12V for CCW motion with LOV corresponding to the Voltage Scale setting Register 24 Voltage Position Mode 2 Overrange eee eee es eee eee ee 12V Overrange SCALE 0 SCALE COUNTER VALUE 4 CCW The programming string for the Voltage Mode is as follows lt EOT gt EA lt STX gt 23 lt mode gt lt ETX gt lt BCC gt Default SPEED Mode 0 6 5 5 Voltage Scale Register 24 Register Address 24 Default 1000 The voltage scale can be set by the user to track SPEED or POSITIOIN Example With Voltage Mode Register 23 set to O a Voltage Scale setting of 10 will provide a full scale 10V output for 1ORPM CW or 10V output for 1ORPM CCW Faster speeds will linearly extend from 10V until peaking at 12V The programming for the Mode is as follows lt EOT gt EA lt STX gt 24
19. to 80 C Ex op is I II 80 C T6 Class I II II AEx op is Group I II III 80 C T6 Zone 0 1 2 20 21 22 Division 1 2 60 to 150 C c Ex op is I II 150 C T3 Class I II II op is Group I II III 150 C T3 Zone 0 1 2 20 21 22 Division 1 2 IMPORTANT NOTE At 3 000 rpm the MR324 housing temperature rises by 25 C above ambient temperature due to bearing friction Environmental temperature must be reduced accordingly Humidity 0 to 95 RH non condensing Ingress Protection For standard through hole model IP54 For blind hole model IP65 Mechanical Specifications Shaft 2 38mm Hollow Shaft ID Moment of Inertia 209 06 kg m System MTBF 2 54E 07 hours 2893 years Bearing Life calculated at 2 500 RPM Housing Weight 100mm x 49mm L 6556 23 oz Specifications subject to change without notice Page 11 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 3 4 MR325 Size 125mm High Resolution Sensor Functional Specification Description Specification Resolution 1024 ppr Max Speed 3600 rpm Optical Interface ODVA Industrial LC Duplex receptacle Fiber Type MM 62 5 125um Graded Index 0 275 Maximum Fiber Link Length See MR320 specifications for maximum distance and optical link loss range Environmental Specifications Temp Range ATEX Classification STANDARD Optio
20. 0 24mA 24 02 Diagnostic Report Speed Measurement This Diagnostic Report may be saved to text file GetSpeed Press Save Report Seve Report 790 INO sw oma oa CHA Max n n Cha Mie CHAMa 08 F POE EN EA Figure 18 DIAGNOSTICS Screen displays internal operating points when encoder is active Page 36 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System S Manual Override Of Certain Parameters In DIAGNOSTICS Mode 7 Diagnostics view allows certain internal parameters to be overwritten for diagnostic and troubleshooting purposes e g CH A B optical sources Analog outputs and the internal Amplifier Gain factors DIAGNOSTICS Field Name DESCRIPTION Optical Receiver A and B quadrature signals correspond to Channels A 1300nm and B 850nm respectively The internal optical receiver parameters are measured via a Peak Detector circuit To measure properly the encoder must be turning at least 100 rpm same as required for CALIBRATE mode for the measured values to be comparable to the acceptance range shown to the right If the encoder is either not or turning too slow in this mode you will see the red framed RPM TOO SLOW message The Amplifier Gain and Peak optical power values are measured for each optical channel The Gain value is modified by the
21. 12 DP MIN PART NUMBER ORDERING CODE TAP DRILL 0 63 16MM DP MIN MR326 C 12 C 185 RESOLUTION SYNCHRO CLAMP 6X 0 250 6 35 THRU MOUNTING PANEL SHAFT SIZE IN MILLIMETERS 12 12MM SHAFT OTHER SHAFT OPTIONS P 2 362 60 ARE AVAILABLE CONNECTOR TYPE C DUPLEX LC PIGTAIL LENGTH IN R DECIMAL POINT 1 5 1 5 METER TEMPERATURE RANGE BLANK STANDARD 40 C TO 80 3 WARNING KEEP CONNECTOR COVERS IN PLACE DURING STORAGE TO PROTECT FIBER OPTIC OPTICAL INTERFACES ENCODER 2 WARNING DO NOT DROP UNIT DROPPING OR OTHER SEVERE SHOCK IMPACTS 33 151 80 04 THRU MIN SUGGESTED MOUNTING PANEL WITH MOUNTING SCREWS 1 577 40 06 THRU MIN MAY DAMAGE UNIT SUGGESTED MOU NTING PAN EL ux uicem nec G I 1 ALWAYS USE FLEXIBLE COUPLING WHEN SENSOR 90 MOUNTING SHAFT TO EXTERNAL EQUIPMENT s 5 DUPLEX LC romeo MT NN SIZE DWG NO REV MR326 CXXCXXX DONOTSCALEDRAWING SCALE 1 1 WEIGHT SHEET 1 OF 1 0 004 0 1 A REVISIONS DESCRIPTION DATE APPROVED gt 6 28 12 RGB 6 X 6 1 0 6H 0 39 10 DP MIN
22. 200 Ohm Page 61 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 5 8 Current Scale Register 27 Register Address 27 The programming for the Current Scale is as follows lt EOT gt EA lt STX gt 27 lt range data gt lt ETX gt lt BCC gt Default 1000 RPM full range Range Description 0 The value turns this function OFF This may be useful when the encoder is expected to operate at high speeds and the voltage output is not required Disabling this function leaves processor resources for other functions such as the quadrature divider It is recommended to disable the output when it is not required 10 10 000 In a SPEED mode Register 26 a Current Scale setting of X SPEED establishes 20mA as full scale output corresponding to X RPM 1 8 388 607 In a POSITION mode Register 26 a Current Scale setting of X POSITION establishes 20mA as the full scale output when the Counter value reaches X QUA special selection is the value O The value O turns this function OFF This may be useful when the encoder is expected to operate at high speeds and the current output is not required Disabling this function leaves processor resources for other functions such as the quadrature divider It is recommended to disable the output when it is not required 6 5 9 Current Filter Register 28 Register Address 28 A user configurable low pass filter exists t
23. C MR320 D06cxxx PROHBIED DO NOTSCALE DRAWING SCALE 2 1 WEIGHT SHEET1OF 1 DUPLEX LC CONNECTOR BOTH ENDS PART NUMBER ORDERING CODE MR320 D06 CXXX CABLE TYPE LC 62 5 125 3000 PUR J AC KET CABLE LENGTH IN METERS R DECIMAL POINT 010 10 METERS 100 100 METERS 1R5 1 5 METERS
24. GND 3 GND 2 Divider Push Pull 2 5V Out 4 B RS422 Line Driver 3 GND LOmA max power 5 B RS422 Line Driver 4 Divider B RS422 Line Driver for MR232 1 Converter 6 GND 5V TTL Cable 7 A Push Pull 5 Divider Push Pull 3 TX gt 8 Push Pull 6 GND 4 gt 9 GND power 7 5 RCV lt 10 Vs power 8 10V Out 6 RCV 15V to 32V 9 GND mmm 11 Counter RESET 10 4 20mA Out 24V Logic 1 12 Shield Figure 9 Connections and controls of the MR320 Controller Module Page 27 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System ELECTRICAL CONNECTION DESCRIPTION Case Shield Connection is made through pin 12 of J1 12 pin plug Power Power connections are made through pins 9 GND and 10 15V to 32V of J1 12 pin plug Observe correct polarity REAT TIME Quadrature Outputs These signals are the direct outputs of the ZapFREE rotary encoder after conversion from optical to electrical signals The A B Push Pull outputs are available through pins 7 and 8 of J1 The A A B B RS422 Line Driver outputs are available through pins 1 2 4 and 5 of J1 Ancillary GND connections are available via pins 3 and 6 of J1 DIVIDER Quadrature Outputs These are the quadrature electrical outputs after going through the Programmable Divider function DIV A B RS422 Line Driver outputs are available via pins 1 and 4 of J2 DIV A B
25. SPEED Description Modes 0 Bipolar output over 4mA to 12mA to 20mA where 12mA is equal to 0 RPM CW rotation from ORPM to Current Scale RPM corresponds to 12mA to 20mA Overrange extends from 20mA to 24mA maximum CCW rotation from ORPM to Current Scale RPM corresponds to 12mA to 4mA Overrange extends from 4mA to OmA minimum Current Speed Mode 0 SCALE 0 SCALE SPEED 1 Unipolar output range of 0 24mA where OmA represents ORPM regardless of direction Page 58 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Current Speed Mode 1 Overrange SCALE 0 SCALE SPEED 2 Unipolar output range of 4 20mA where 4mA represents ORPM regardless of direction Current Speed Mode 2 Page 59 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System POSITION Description Modes 3 Bipolar output over OmA to 12mA to 20mA where 12mA is equal to the zero position counter value CW rotation from O counter value to Current Scale Reg 27 setting corresponds to 12mA to 20mA Overrange extends from 20mA to 24mA maximum CCW rotation from O counter value to negative Current Scale Reg 27 setting corresponds to 12mA to 4mA Overrange extends from 4mA to OmA minimum Current Position Mode 3 Overrange SCALE 0 SCALE COUNTER VALUE 4 Unipolar output range of O 24mA representing the absolut
26. SYNCHRO CLAMPS 202 PART NUMBER ORDERING CODE UNTER PA WITH MOUNTING SCREWS MR322 D 06 1R5 3 WARNING KEEP CONNECTOR COVERS IN PLACE RESOLUTION 1 Eun PIGTAIL LENGTH IN METERS DURING STORAGE TO PROTECT FIBER OPTIC A 100 R DECIMAL POINT INTERFACES 128 1 5 1 5 METER 256 2 WARNING UNIT DROPPING D 340 OR OTHER SEVERE SHOCK IMPACTS 5 OEE TCD MICRONOR INC MAY DAMAGE UNIT SHAFT SIZE IN MILLIMETERS p CORNE TOR d eem NEWDURY PARK CA 08 49 0114 1 ALWAYS USE FLEXIBLE COUPLING WHEN dE 50 3358 0002 5 989 0 010 i Hh care EE SA MOUNTING SHAFT TO EXTERNAL EQUIPMENT WITHO 216 5 50 FLAT C I ICT NEN CN DRAWNGIIMESQUEPROPERIYOR nn SIZE DWG NO REV NOTES UNLESS OTHERWISE SPECIFIED OTHER SHAFT OPTIONS ARE AVAILABLE C MR322CXX PROHIBITED DO NOT SCALE DRAWING SCALE 1 1 WEIGHT SHEET 1 OF2 OPTICAL ENCODER 72 96 4 00 2 87 3 00 ER 0 118 5 TEE 5 2 28 T 10 00 0 394 57 94 eae 52 98 2 086 FOR SHAFT DIA AND FLATS SEE TABLE 3 x M4x0 7 6H V 0 315 8 00 MIN EQ SPCD AS SHOWN MOUNTING PANEL SYNCHRO CLAMP MOUNTING PANEL 142 00 51 654 1 654 19 PART NUMBER ORDERING CODE REVISIONS DESCRIPTION DATE APPROVED ADD SHEET 2 4 1 13 RGB
27. axial and radial play with low dynamics for constant rotary movement Figure 3 Hollow Shaft Encoder Mounting Options Page 23 of 85 MR320 Series ZapFREE Fiber Optic Incremental Encoder System Pitch cirde Order Code Diameter 104 206 mm MR314A MR314B Use Long Spring and Pin MR314B Use Short Spring and Pin MR314B Use Small Tether Bracket and Screw MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 4 Mounting the Controller Module The MR320 Controller is designed to mount on a standard 35mm DIN rail as shown in Figure 4 below Figure 4 Mounting MR320 Controller on DIN Rail 5 5 Making Optical Connection to the Controller Module Figure 9 illustrates all connections both electrical and optical and controls on the MR320 Controller A duplex fiber optic cable is used to interconnect the Sensor and Controller The MR320 Controller incorporates a Duplex LC receptacle while the Sensor can either feature a Duplex LC optical pigtail or Harsh Environment ODVA LC Duplex receptacle The optical link can be a direct connection between Sensor and Controller via the Sensor pigtail or multi segment link incorporating interconnections and splices as long as the 2 way optical loss does not exceed 12 5 dB Figure 5 shows the proper method of making a Duplex LC connection Remove the dust cap from both the connector on the cable and the receptacle on the controller Insert the LC Dup
28. is being received cabling problems or the MR320 input amplifiers have not been calibrated properly STEP 1 Calibrate the input amplifiers as described in Section 5 8 First Time Start Up and Section 5 9 Manual Gain Calibration Manual Reset f that did not solve the Problem and the LED s do not light up then most likely the fiber optic connection to the encoder is bad STEP 2 Check Fiber Optic Connections on both the encoder side and the controller side Clean both connectors as described in Section 7 3 Fiber Optic Connector Cleaning STEP 3 check if the MR320 produces enough optical power you must have a connected to the MR320 and ZAPPY software running and communicating with the MR320 Then disconnect the fiber optic cable from the MR320 and cover the connector interface to protect it from dust STEP 4 With no optical connection to the MR320 select DIAGNOSTICS mode and all pertinent diagnostics information will be automatically retrieved from the MR320 The INPUT AMPLIFIER field displays the gain setting of the amplifier and the calculated received optical power for each channel Press the RESET switch on the MR320 located just below J1 to force the ZAPPY Gain Setting to 20 maximum gain due to no reflected signal from encoder Save Diagnostic Report to File and contact Micronor Technical Support Page 68 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 7 2 Interface Problem
29. recalibration of the optical transmitter When the amplifier is at maximum gain setting of 1 than there is not enough optical power the reason for this is most likely a high loss within the optical connections b defective encoder c defective optical transmitter unit MR320 For troubleshooting the connection please refer to section 5 5 within this instruction manual Page 74 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 8 Reference Drawings List of drawings which follow this page Micronor MR320 Controller Module Reference Drawing 1 page Micronor MR322 Optical Encoder Reference Drawing 2 pages Pigtail and ODVA versions Micronor MR324 Optical Encoder Reference Drawing 2 pages Thru Bore and Pocket Hole versions Micronor MR325 Optical Encoder Reference Drawing 1 page Micronor MR326 Optical Encoder Reference Drawing 2 pages Pigtail and ODVA versions Micronor MR328 Optical Encoder Reference Drawing 1 page Micronor MR320 DOGCXX Duplex LC Fiber Optic Cable Assembly Drawing 1 page Page 75 of 85 67 30 u ADDED TIE E ic 2 65 DUPLEX LC FIBER OPTIC 101 60 CONNECTOR PORT 4 00 22 55 25 ALWAYS KEEP C O VERED 218 AND FREE OF DUST AND DIRT
30. 22 is used to set the voltage scale Data isthe parameter to be written to the register Parameters must be within valid range to be accepted Data Request lt EOT gt r lt ENQ gt A The MR320 address default of EA settable by the user r Register number of the item being accessed requested The Register number is really the command i e number 22 is used to get the voltage scale Data returned by the MR320 lt 5 gt data lt gt lt gt f Register number of the value being returned ASCII Format and Hexadecimal Data Value being returned in ASCII format 6 2 3 The Block Check Character lt gt The Block Check Character is used to test the transmissions for any potential errors The lt BCC gt is derived by applying a bitwise eXclusive OR XOR over the specified transmitted bytes The recipient must perform the same function and compare the result with the sent lt gt value If the values match the transmission succeeded without errors The string of bytes included in the lt BCC gt begins with the byte immediately following lt STX gt up to and including the lt ETX gt byte Example Transmission lt EOT gt EA lt STX gt 24500 lt ETX gt lt BCC gt The corresponding Hex bytes are EOT Dev Addr STX Reg Addr data ETX BCC 04 45 41 02 30 Sum Of These Bytes Equals lt BCC gt NOTE The shaded bytes are included in the calc
31. 50 750 THRU MIN SUGGESTED MOUNTING PANEL COUNTER BORED PANEL WITH MOUNTING SCREWS MR322 D 06 DOO 3 WARNING KEEP CONNECTOR COVERS IN PLACE EION DURING STORAGE TO PROTECT FIBER OPTIC POOD INTERFACES E 2 WARNING DO NOT DROP UNIT DROPPING OTHER SEVERE 5 IMPACTS MAY DAMAGE UNIT SHAFT SIZE IN MILLIMETERS 1 ALWAYS USE FLEXIBLE COUPLING WHEN MOUNTING SHAFT TO EXTERNAL EQUIPMENT 6 6MM SHAFT 00 2358 0002 5 989 0 010 WITH 0 216 5 50 FLAT NOTES UNLESS OTHERWISE SPECIFIED OTHER SHAFT OPTIONS ARE AVAILABLE OPTICAL CONNECTOR DOO ODVA INDUSTRIAL LC DUPLEX CONNECTOR UN LESS OTHERWISE SPECIFIED SUGGESTED MOUNTING PANEL THRU HOLE MOUNT WITH 2 00 0 079 DEEP MIN SYNCHRO CLAMPS 4 29 3X 050 169 THRU EQ SPCD AS SHOWN MICRONOR DIMENSIONS ARE IN INCHES OLERANCES DRAWN R BOYER 4 1 13 SECTION C C NEWBURY PARK CA 805 499 0114 ANGULAR 5 WO PLACE DECIMAL 02 CHECKED TITLE HREE PLACE DECIMAL 005 FOUR PLACE DECIMAL 2 0010 ENG APPR MFG APPR INTERPRET GEOMETRIC Q A ODVA LC PROPRIETARY AND CONFIDENTIAL TOLERANCING PER THE INFORMATION CONTAINED IN THIS MATERIAL DRAWING IS THE SOLE PROPERTY OF SEE NOTES REPRODUCTION IN PART OR AS A WHOLE FINISH SEE NOTES PROHIBI
32. 58mm L Weight 280g 9 75 oz With 5m Pigtail Specifications subject to change without notice Page 15 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 4 initial Preparation 4 1 Standard Contents MR320 Controller Module will always include MR320 Module with WAGO mating connectors installed 1 each 12 10 and 6 pin e Poly bag containing WAGO Tool 233 335 and Strain Relief Plates 733 128 MR320 Sensors will always include MR320 Series Sensor Optional accessories if ordered e MR320 series Duplex LC Fiber Optic Cables Assemblies MR320C Duplex LC Mating Bulkhead Adapter MR398 series Fiber Optic Cables Assemblies Duplex LC and ODDA MR232 1 RS485 422 to RS232 Adapter Cable One set of the following is also included with any shipment with an MR320 Controller MR320 Series ZAPPY Installation Guide printed copy MR320 Series ZAPPY Software Installation and Documentation CDROM MR3241C Fiber Optic Cleaning Kit MR232 3 USB Cable 4 2 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 In the event of a damaged instrument write or call MICRONOR INC in Camarillo California Please retain the shipping container in case reshipment is r
33. 6 and to the mechanism s shaft with a flexible coupling STEP 1 STEP 2 STEP 3 STEP 4 Check that there are no burs on the mating shaft and that the set screws on the flexible coupling are backed off so they don t bind when slipped on the shaft Slide the coupling onto the mating shaft If the mating shaft has a flat or a key way make sure that the setscrew is aligned to land on the flat part of the shaft Mount the encoder to its bracket with screws Do not tighten them all the way Position the encoder shaft with the mating shaft so they are co aligned with a gap of about 1 8 inch 3mm Check the misalignment specifications for the coupling to ensure that it is not overstressed Tighten the encoder mounting screws Align the flat of the encoder shaft with the flat or keyway on the mating shaft Center the coupling over the gap between the two shafts and tighten the setscrew on the mating shaft Wiggle the encoder shaft back and forth slightly to ensure that the coupling is not binding and it is at its free length Now tighten the setscrew on the encoder shaft Installation is complete Page 19 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System MOUNTING SCREWS OPTICAL ENCODER MOUNTING PANEL Figure 1 Shafted Encoder Face Mount via Counter Bored Panel Page 20 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 2 2 Thru Hole Panel Mount with Hol
34. 8 Read Write 8192 Read Write 2 Read Write RPM 8388607 5 Read Write ms 128 Read Write 6 Read Write RPM 8388607 Read Write ms Read Write Read_Write Read_Write gt Read Write counts Read Write counts Figure 14 ENCODER Table View Screen Review the table contents and make any necessary changes to the parameter setup Given the sample screen shown in STEP 6 Figure 14 let s say that the existing encoder setup needs to be modified because the actual encoder has a resolution of 100 ppr Simply type 100 followed by 1 ENTER over the VALUE field for RESOLUTION STEP 7 If there are any parameter changes then select SAVE TO UNIT These values will be transferred to the MR320 and stored in non volatile memory Page 34 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Next let s test the encoder in actual but manual operation using the OPERATE and DIAGNOSTICS functions STEP 1 Select OPERATE mode and observe the initial static screen display similar to Figure 15 Adjust RPM METER SCALE setting as desired by writing into the field Click on RESET to zero the POSITION COUNTER ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR O p e 3 Home Oparte Dagnosscs ineiructors Real Time Position Counter 0 Reset Counter Display Counter Figure 15 Initial OPERATE Screen if encoder is inactive STEP 2 An initi
35. AIL sales micronor com URL www micronor com In Europe Micronor AG Pumpwerkstrasse 32 CH 8015 Regensdorf Switzerland T 41 44 843 4020 F 41 44 843 4039 EMAIL sales micronor ch URL www micronor ch Page 7 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 3 Specifications 3 1 MR320 Controller Functional Specification Description DIRECT Quadrature Outputs Bandwidth Format DIVIDER Quadrature Outputs Divider Range Specification 70 kHz max Contact Micronor concerning modifications for higher bandwidth applications A A B B RS4222 Line Driver and A B Push Pull Outputs are Standard Programmable DIVIDER range is 2 9999 Format A A B B RS422 Line Driver standard Contact Micronor if Push Pull outputs are required Analog Outputs Each output is independently programmable for Position or Speed Current Output Range 0 24mA Max Burden Resistance 5000 24V supply Voltage Output Range 12V Max Current 5mA 2 load Short Circuit lt 5s POSITION Mode Internal Counter Counter Hardware Set Reset Full scale range of selected analog output is 1 to 8 388 607 counts equivalent to 8 192 revolutions of MR314 1024ppr encoder based on contents of internal counter Direction Sign Bit plus 24 bit counter 8 388 607 Half step resolution can be achieved by enabling MULTIPLIER function x2 PLC type 24V logic input OR serial software command
36. ESCRIPTION OF EACH FUNCTION a a 6 5 1 2 Bia 625 2 Divider Register 21 korin tete ore be ha de e a E E ee ugs 6 5 3 RPM Register 22 oe ee o ee e eee eor doeet aee e ao deste eo em ees Page 3 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 8 6 5 4 Voltage Mode Register 23 6 5 5 Voltage Scale Register 24 6 5 6 Voltage Filter Register 25 6 5 7 Current Mode Register 26 6 5 8 Current Scale Register 27 6 5 9 Current Filter Register 28 uu eie teer dui Perte eer E Eng ee re nee Wa en EE neo 6 5 10 Counter Reset Register 29 susan ee tente iie tete ree eee etie sued uate 6 5 11 Counter Multiplier Register 2A 6 5 12 Encoder Direction Register 2 6 5 13 Hardware Reset Value Register 2C 6 5 14 Reset On Count Homing Register 2D 6 5 15 Saving Parameters in EEPROM Register 13 67 MAINTENANCE AND M 68 7 1 ENCODER WILL PRODUCE QUADRATURE 5 15 enne entren erre reser iners Z1
37. ICRON ORPORATION IS PROHIBITED MR328 D 06 C 05 3 WARNING KEEP CONNECTOR COVERSIN PLACE RESOLUTION Jl L PIGTAIL LENG TH IN METERS DURING STORAGE TO PROTECT FIBER OPTIC D 360 05 5 METERS INTERFACES 10 10 METERS 2 WARNING DO NOTDROP UNIT DROPPING OR OTHER SEVERE SHOCK IMPACTS UNLESS OTHERWISE SPECIFIED SHAFT 92 MILLIMETERS CONNECTOR TYPE 6 6MM SHAFT C ZDUPLEX LC 1 ALWAYS USE FLEXIBLE C O UPLING WHEN D 0 2358 0002 5 989 0 010 FOUR PLACE DECIMAL 0010 MOUNTING SHAFT TO EXTERNAL EQUIPMENT WITH 0 216 5 50 FLATI See COMMENTS TITLE MRI COMPATIBLE OPTICALENCODER SIZE DWG MR328 REV A SCALE 1 1 WEIG HT SHEET 1 OF 1 REVISIONS LENG IH XXX METERS REV DESCRIPTION DATE APPROVED 91 11 RGB NEW RELEASE TOLERANCE gt 5m GREATER OF 20 0c m OR 2 5 0 5m 10cm 3 OPTICAL PERFORMANCE IL 0 25dB PER TIA 455 171A METHOD D3 RL gt 30dB PER TIA 455 8 2 WARNING DO NOTDROP CABLE ASSY DROPPING OR OTHER SEVERE SHOCK IMPACTS MAY DAMAGE CABLE ASSY sss s QMERONORINC 1 WARNING KEEP COVERSIN PLACE T P a DUPLEX LC DURI N 510 RAGE TO PROTECT FIBER OPTIC PIRSA ing CABLE ASSEMBLY ia S Svr DWG NO E NO TES UNLESS O THERWISE SPEC IFIED p LIE ea
38. If you are installing ZAPPY for the first time on a particular PC it may take a 1 or 2 more program start ups until ZAPPYTM and the PC are in sync and communicating Each time you must disconnect the USB cable and completely exit the ZAPPYTM program then plug in USB cable and then start ZAPPYTM again The reason is that a sequence of events need to occur FTDI driver installs Windows loads USB Serial Interface driver Windows assigns port to USB and then ZAPPY need to find this particular COMx port This COM port assignment is usually COMS or higher Select UPLOAD TO PC to load the current Encoder parameter values from the Controller into the STEP 5 Encoder Table View as shown in Figure 14 If there is no serial communications connection you will experience a Communications Timeout and you will need to troubleshoot the serial interface per Section 7 2 Interface Page 33 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR 3 i B Ll sss a amp P Home Load Param Save Param Fry oder Save to Unit Operate Diagnostics t Upload to PC Restore Default Values Edit the Parameter Values in the Column titled Value Parameter Name Register Cmd Mode Unit Min Max Device Name Read Only 4 Read Only 1 Read Only 10000000 Read Write 255 Read Write 1024 Read Write 200 Read Write 12
39. MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 3 3 Diagnostic Commands Registers 30 39 These commands are used when servicing the MR320 either in the field or in house Title Reg Setup Range Default Saved Description ADC Read 30 R W 0 4 Performs read of the indicated ADC channel The value is obtained by sending a Request Channel peak signal 1 Channel B peak signal 2 2 5V channel reference voltage 3 5V channel 4 12V channel Channel A Reading 31 No n a n a No Returns the most recent Channel A reading Channel B Reading 32 No n a n a No Returns the most recent Channel B reading Pot A State 33 R W 0 128 n a No Writes the value to the Channel A gain pot If a Request is issued the current pot A value is returned and a read of the pot initiated Pot B State 34 R W 0 128 n a No Writes the value to the Channel B gain pot If a Request is issued the current pot B value is returned and a read of the pot initiated Encoder Period 35 RD 0 16 777 215 Reads the encoder period as detected Channel A Voltage DAC 36 RD O DAC Range n a No Reads the actual setting of the Voltage DAC Value 0 4095 Current DAC Operating Mode 37 38 RD R W O DAC Range 0 2 n
40. ODVA LC Duplex IP LC optical interfaces Sensor is ATEX classified as Simple Apparatus allowing safe use in all types of hazardous locations and explosive atmospheres including mines oil rigs and petrochemical plants Fiber optic link provides 100 electrical isolation between patient and electrical equipment e Special non metallic model for MRI and other applications requiring electromagnetic transparency e Controller offers multiple built in interfaces for maximum system compatibility including quadrature outputs RS422 RS485 RSS232 Modbus RTU USB and both 4 20mA and 10V programmable analog outputs IP66 Rating The MR320 series Sensors offers a wide range of size mounting resolution and temperature performance options e MR322 is a Size 58mm shaft encoder with 100 128 256 360ppr options MR326 is a Size 90mm shaft encoder with 100 128 256 360ppr options and IP66 environmental seal for wash down and short immersion e MR324 is Size 100mm high resolution hollow shaft encoder with 1024ppr resolution MR324 is Size 125mm high resolution shaft encoder with 1024ppr resolution MR328 is a non metallic Size 58mm shaft encoder 360ppr for MRI and other applications where electromagnetic transparency is required e STANDARD temperature range is 40 C to 80 C except MR328 EXTENDED temperature option offers extended performance over 60 to 4 150 C Models MR324 and MR326 only e ODVALC Duplex IP LC interface availa
41. ORPM so that at 5OORPM the output will be 10V Use register 24 to set the value to 500 Send lt EOT gt EA lt STX gt 24500 lt gt lt gt The unit will respond with Received lt gt If there was problem or the command was not received properly the unit will respond with lt gt Always test the return for lt ACK gt or lt NACK gt Note Blank spaces in above examples are for clarity only and must NOT be included in the actual commands Page 52 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 5 Detailed Description of Each Function This section describes the physical outputs from the encoder monitoring circuit 6 5 1 Counter Register 20 Register Address 20 This is an internal summing counter that keeps accurate track of the full number of quadrature cycles For the 120 256 each 360 degree rotation produces 256 counts The counter is relative to a given starting position The user may reset or preset the counter to any value within a full 24 bit range To request the Counter value lt EOT gt EA20 lt ENQ gt To Preset the Encoder Counter to value O lt EOT gt EA lt STX gt 20 lt counter value gt lt ETX gt lt BCC gt Range is 8 388 607 The range is good for 32 768 revolutions in either direction when using a 256ppr encoder The sign bit indicates that the encoder is turning Counter Clockwise CCW looking at the encoder from the s
42. P 64 Mechanical Specifications Shaft 6mm x 5 5mm FLAT x 10mm L 2 0 236 x 0 217 FLAT x 0 393 L Max Shaft Load Radial 80N 18 Axial 40N 9 Ibf System MTBF Housing 1 786 05 hours 20 3 years Bearing Life calculated at 2 500 RPM and 5096 of Maximum Radial Axial Shaft Load 58mm x 58mm L Weight 210g 7 25 oz Specifications subject to change without notice Page 10 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 3 3 MR324 High Resolution Hollow Shaft Sensor Functional Specification Description Specification Resolution 1024 ppr Max Speed Continuous operating speed unless otherwise noted Mechanical 3000 rpm continuous 3 300 rpm short term lt 1 minute 3 300 rpm max For Quadrature Outputs Only Electrical 3 000 rpm max For and V Analog Outputs activated but Divider de activated 2 500 rpm max For and V Analog Outputs and Divider activated Optical Interface Duplex fiber optic pigtail with Duplex LC plug Fiber Type MM 62 5 125um Graded Index 0 275NA Maximum Fiber Link Length Environmental Specifications See MR320 specifications for maximum distance and optical link loss range Temp Range ATEX Classification STANDARD Option ATEX Rating U S Haz Rating EXTENDED Option ATEX Rating U S Haz Rating Intrinsically Inherently Safe Simple Apparatus 40
43. R INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 3 2 Functional Specification MR322 Size 58mm Sensor Description Specification Resolution Standard options are 100 128 256 or 360 ppr Max Speed Continuous operating speed Mechanical 8000 rpm Electrical 8000 rpm Direct Quadrature outputs used with all Auxiliary Functions OFF 5000 rpm Direct Quadrature outputs used and all Auxiliary Functions ON Auxiliary Functions are processor dependent functions e g Divider Multiplier Counter and Analog Outputs Contact Micronor for more information about speed versus operational trade offs Optical Interface Fiber Type Duplex fiber optic pigtail with Duplex LC plug or ODVA LC Duplex IP LC Receptacle MM 62 5 125um Graded Index 0 275 Maximum Fiber Link Length See MR320 specifications for maximum distance and optical link loss range Environmental Specifications Temp Range ATEX Classification STANDARD Option ATEX Rating U S Haz Rating EXTENDED Option ATEX Rating U S Haz Rating Intrinsically Inherently Safe Simple Apparatus 40 to 80 Ex op is I II 80 C T6 Class I II II AEx op is Group I II III 80 C T6 Zone 0 1 2 20 21 22 Division 1 2 60 to 150 Ex op is I II 150 C T3 Class I II II AEx op is Group I II III 150 C T3 Zone 0 1 2 20 21 22 Division 1 2 Humidity 0 to 9596 RH non condensing Ingress Protection I
44. SPEED Mode Full scale range of selected analog output can be programmed from 10 to 10 000 RPM USB Interface Built in Type B receptacle Serial Interface Fiber Link Length RS422 RS485 Or Modbus RTU via J3 Can be operated as RS232 interface with optional MR232 1 Converter Cable 2500 m 8200 ft max typical Total Link loss not to exceed 12 5 dB two way at 850 nm For longer link applications contact Micronor with your requirements Electrical Connectors WAGO QuickConnect Plugs J1 12 pin WAGO 733 112 J2 10 pin WAGO 733 110 J3 6 pin WAGO 733 106 USB Type B Receptacle Page 8 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Power Supply Specifications Power Supply Input 15VDC to 32VDC 60mA During Power Up the external power supply should be capable of delivering a momentary current surge in excess of 100 mA 5V Output 10mA maximum load Designed for powering MR232 1 Converter Cable Environmental Specifications ATEX Rating Ex op is 55 C T6 Inherently Safe Optical Radiation Shall be installed in non hazardous location Temp Range 5 to 55 C Humidity 30 to 85 RH non condensing Ingress Protection IP40 Physical Dimensions Mounting 35mm DIN Rail Housing 102mm W x 102mm D x 68mm H Weight 300g 10 5oz Specifications subject to change without notice Page 9 of 85 MICRONO
45. T DURING STORAGE TO PROTECT FIBER OPTIC 1R5 1 5 METER INTERFA F UNLESS OTHERWISE SPECIFIED INC DIMENSIONS AREININCHES DRAWN RBOYER 4 5 13 NEWBURY PARK CA 805 499 0114 1 WARNING DO NOT DROP UNIT DROPPING OR OTHER SEVERE SHOCK IMPACTS SHAFT POCKET IP66 ANGULAR 5 CHECKED WO PLACE DECIMAL 02 C DUPLEX LC TITLE nu OPTICAL ENCODER MAY DAMAGE UNIT 9 38 026 0 013 POCKET HOLE VERSION PROPRIETARY AND CONFIDENTIAL TOLERANCING PER b 1 4971 lt 0 0005 ev UC d Mit a SEE DWG REV MICRONOR CORPORATION ANY SEE NOTES MR324 C NOTES UNLESS OTHERWISE SPECIFIED oi ee SCALE 1 2 WEIGHT SHEET 2 OF 2 REVISIONS NEW RELEASE _ 225 90 42 3 30 INDUSTRIAL 3 56 0 130 LC DUPLEX CONNECTOR 12X 0 257 6 53 THRU FLANGE LOCATIONS E 45 60 16 50 30 gt e 6 X M x1 0 6H THRU FLANGE LOCATIONS D WE 85 6 05 0 000 1125 D 3 346 0 002 b 4 92 he 115 4 528 100 D 3 937 12 0 01 D 0 4724 0 0005 PART NUMBER ORDERING CODE MR325 F 12 DOO RESOLUTION PPR TEMPERA
46. TED DO NOT SCALE DRA COMMENTS OPTICAL ENCODER SIZE DWG MR322 DOO REV SCALE 1 1 WEIGHT SHEET 2 OF 2 REVISIONS REV DESCRIPTION DATE APPROVED C REVISED 5 9 13 RGB 33 98 4 00 2 2 5 0 45 6H 1 34 poi 2127 Y 0 217 5 50 MIN 11 55 2 00 0 079 DEPTH 6 00 _ CUTOUT IN FRONT 11 00 0 226 13 40 FOR HOLLOW o 508 SHAFT BORE DIA i SEE TABLE 95 00 0 05 53 740 0 002 100 00 3 937 134 93 2X 120 2 1 375 80 00 53 150 CLAMPING RING SUPPLIED 6 X M4x0 7 X0 7 6H 0 268 6 80 MIN 69 00 R2 72 48 87 1 92 FOR CONNECTOR PART NUMBER ORDERING CODE AND PIGTAIL OPTIONS SEE TABLE MR324 F 38 C 1 5 TEMPERATURE OPTION BLANK STANDARD 40 C TO 80 C E EXTENDED 60 C TO 150 C 2 WARNING KEEP CONNECTOR COVERS IN PLACE RESOLUTION PIGTAIL LENGTH IN METERS DURING STORAGE TO PROTECT FIBER OPTIC F 1024 ds POINT s HOLLOW SHAFT BORE IN MILLIMETERS wee um gt a 1 WARNING DO DROP UNIT DROPPING 387 8 SHAFT IE
47. TURE RANGE 3 WARNING KEEP CONNECTOR COVERS IN PLACE F 1024 BLANK STANDARD DURING STORAGE TO PROTECT FIBER OPTIC 40 C TO 80 C INTERFACES SHAFT SIZE IN MILLIMETERS OPTICAL CONNECTOR 2 WARNING DO NOT DROP UNIT DROPPING E AE OR OTHER SEVERE SHOCK IMPACTS CONNECTOR ie Es SQNORING 1 ALWAYS USE FLEXIBLE COUPLING WHEN INE mE MOUNTING SHAFT TO EXTERNAL EQUIPMENT CE INCREMENTAL 2E ENCODER Mc ue qr p bd SEE DWG NO REV NOTES UNLESS OTHERWISE SPECIFIED REPRODUCTION IN PART OR AS A WHOLE NSF C MR325 F12D00 A DO NOT SCALE DRAWING SCALE 1 1 WEIGHT SHEET 1 OF 1 REVISIONS REV DESCRIPTION DATE APPROVED 7 0 004 0 1 A REVISED 6 28 12 RGB 1 063 27 0 827 21 pec 0 0000 O 121 05591115 0 4724 0 0007 12 0 018 6 x M6x1 0 6H 0 394 10 0 004 0 1 0 39 10 DP MIN 0 197 5 i j eter 0 063 543 90 02 28 57 9 b 3 1496 0 0014 80 0 035 0 008 0 2 A A D3 149 79 98 0 0 1575 0 0012 14 0 03 22 362 60 etel 0 0 787 20 DUELO 0 100 40 002 2 55 40 050 a 3 55 90 1 0 98125 4 0 7 6H 0 47
48. a n a No No Reads the actual setting of the Current DAC Value 0 4095 Sets the system operating mode Normal 1 Forces a gain pot calibration to occur same as Cal button being pressed Following cal mode returns to Normal 2 Sets the system to optical calibration mode Refer to Section 7 Maintenance and Service for a detailed description Optical Sources 39 R W n a No Sets the two optical sources to the states indicated by the data both amp B sources off 1 Aon B off 2 A off Bon 3 both A amp B source on This command is valid only when the operating mode is 2 Page 51 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 4 Communications Programming Example Make sure you have the terminal setup correctly 9600 baud 8 data bits and 1 stop bit Example 1 To retrieve the Model Number send the following Command via a serial interface You must send the Start Transmission Character lt EOT gt followed by other command information as Human Readable ASCII characters followed by the End Of Command lt ENQ gt character Send lt gt 16 lt ENQ gt unit will now respond with the Model Number Received lt STX gt 16MR320 lt ETX gt lt BCC gt The number 16 is the register address and MR320 is the requested information Example 2 Set the Full Scale Range for the voltage output to 5O
49. al check would be to deliberately and semi precisely turn the encoder shaft for one revolution and note if the correct number of counts is displayed HINT A little adhesive tape flag formed around the encoder shaft would provide some degree of finger control An active OPERATE screen is also shown in Figure 16 E ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR 1 n 2 2 a Operate 2 14 2 3 Real Time Meter Scale 1000 90 RPM 100 0 100 5150 Position Counter 71321 Reset Counter Ed Display Counter Figure 16 OPERATE Screen displays Real time Encoder Operation Page 35 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Select DIAGNOSTICS to view various monitoring points within the MR320 Figure 17 shows the initial screen or else when the encoder is not moving When the encoder is still the system cannot take a snapshot of these internal points since there is slit to slit movement hence the red framed RPM SLOW message Depressing DIAGNOSTICS tab while the encoder is rotating provides a snapshot of the internal monitoring points as shown in Figure 18 Repeatedly clicking on DIAGNOSTICS will update the entire set of readings while the individual diagnostic groups Voltage Test Optical Sources Slit Period Measurement and Input Amplifer which can also be updated individually A
50. ation the PWR indicator will behave as follows e Continuously ON to indicate normal operation e Will blink off for about 150ms each time a CALIBRATION cycle occurs An error condition is signified by the PWR LED blinking 1 5 times in a cycle repeated every 3 3 seconds Note the number of blinks and contact Micronor for technical support The PWR LED blinking error codes are One 1 blink indicates an EEPROM failure Two 2 blinks indicate that the internal 2 5V supply is out of tolerance Three 3 blinks indicate that the internal 5V supply is out of tolerance Four 4 blinks indicate that the 12V supply is out of tolerance Five 5 blinks indicate that the optical encoder signal cannot be CALIBRATED correctly In each of these instances the encoder system continues to run but may not operate properly Use the ZAPPY diagnostic tool to determine what the exact cause may be For instance when the 12V 4 blinks error is indicated than use the diagnostics to evaluate if the unit must be repaired or if it is still useable The unit is useable as long as the internal voltage is 12V to 14 5V Five blinks indicate that the input optical amplifier is at maximum or minimum gain range Minimum gain is indicated when the GAIN setting of either amplifier is at 127 As long as the input voltage of that particular channel is less than 2 4V the system may still be used If the voltage exceeds the 2 4V the unit must be sent to the factory for
51. ay be used to output a voltage from OV to 10V corresponding to the angular position from O to 359 9 In this case the Auto Reset would be set to 1024 and the voltage scale value would be set to 1024 Voltage mode setting is 2 As the encoder turns the voltage increases from O to 10V and as the position counter reaches 1024 it automatically resets to and the output voltage naturally follows to OV indicating O angular position When the encoder turns CCW and passes through zero the counter resets to the maximum setting RESET ON COUNT Mode Example shown uses Current Position Mode 6 Where R RESET Value 2 R R 0 R 2 R COUNTER VALUE The programming is as follows lt EOT gt EA lt STX gt 2D lt reset value gt lt ETX gt lt BCC gt Check for a lt ACK gt that verifies value has been accepted Default value O deactivated Comparison is based on the absolute value of the position counter Reset to O occurs when the counter reaches either the positive or the negative preset value Page 66 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 5 15 Saving Parameters in EEPROM Register 13 Register Address 13 Parameters are not automatically saved to EEPROM The user must issue a special command to commit the parameters to EEPROM It is highly advisable to always initiate an EEPROM commit otherwise all the stored parameters will be lost when power is removed to the MR320 unit
52. ble on MR322 MR325 and MR326 series Sensors Page 6 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 2 Warranty Information 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 To exercise this warranty write or call your local MICRONOR INC representative or contact MICRONOR INC headquarters You will be given prompt assistance and return instructions Send the instrument transportation prepaid to the indicated service facility Repairs will be made and the instrument returned transportation prepaid Repaired products are warranted for the balance of the original warranty period or at least 90 days 2 1 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 fuses or AC line cords 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 INC shall not be liable for any indirect special or consequent damages 2 2 Contact Information Micronor Inc 900 Calle Plano Unit K Camarillo CA 93012 USA Tel 1 805 389 6600 Fax 1 805 389 6605 EM
53. brief explanation of the relevant diagnostic fields follows onthe next page Wd ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR Lcw Power Supply Measure Voltaqes REF 25V __250 248V 252V POWERSV 514 50V 54V 12 1324 12 14V ANALOG Outputs Get Analog Outputs Voltoge 12V 12V 0 2 2402 Diagnostic Report Speed Measurement This Diagnostic Report may be saved to a text file Press Save Report Save Report rem 00 Calibration K 560m o na zoa amp Oh Hr SUE Figure 17 Initial DIAGNOSTICS Screen when encoder is inactive Wi ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR 15 n 4 Encoder Diagnostics 3 ET m Home Optical Receiver Power Supply Voltages Messi Votooes Channel A 1300 2 REF 2 SV 250 248v 252V Optical Power dBm 28 3 25 2dBm 33048 POWER SV 7756 50 54V Ampiif I nim S MS POwERTN 1324 12V 141 Amplifier Output V 212 UW 26V l 1 Power 793 15 10 ANALOG Qutputs Channel 8500m GwAmkaOwus Optical Power 98 29 9 25 208m 33 098 Ampliher Gain 65 3 2 12 12V Amplifier Output V 202 17 26V XMT Power 500 15 100 Current
54. ce Requirements t E e Always use high quality Duplex LC or IP LC connectors and terminations 42 High precision single mode connectors are not much more expensive than multimode versions Epoxy and Polish connectors are preferred over hot melt or other quick termination style connectors e Insertion loss lt O 5dB measured at 850nm and 1300nm e Polished to single mode endface geometry specifications per TELCORDIA GR 326 CORE For relatively benign industrial environments sensors with Duplex LC optical pigtails and standard MR320 Duplex LC link assemblies are usually adequate For harsh environments sensors with ODVA IP LC receptacles and links comprised of heavy duty ODVA IP LC environmental assemblies are recommended Cabling should also be selected that is certified for the intended temperature range environment and application Sensors must be specified that have adequate shaft seals and rating For example e Oil rig equipment must be resistant to mud oil used to lubricate drilling apparatus Page 29 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System e Mining applications are typically dusty environments and may also require cabling meeting MSHA standards e Other industrial and process environments may require resistance to harsh and corrosive chemicals such as detergents acids hydraulic fluid jet fuel etc Before connecting the optical link between the Controller modul
55. ct connector ends before mating to the ZapFREE equipment e Always cap unmated connectors e Fiber optic connectors do not require maintenance That is do no disconnect for the sole purpose of examining the ends If it ain t broke then don t fix it 5 8 First Time Start Up After making all conenctions to Controller and Sensor perform the following Start Up procedure e Step 1 Turn on power PWR LED should be ON Step 2 Follow the Manual Reset procedure described in Section 5 9 E PWR LED Indicator and Error Code Interpretation 4 The Controller goes through an internal Calibration Cycle every 60 seconds Thus every 4 60 seconds single blink of the PWR LED can be observed If at any time the PWR indicator blinks more than once then count the number of blinks and consult the Error Table under the Troubleshooting section Page 30 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 9 Manual Gain Calibration Manual Reset If after operating at a rotation of at least 50RPM the encoder will not function properly then a manual reset is necessary This is not a malfunction of the unit The issue is simply that the received optical power is currently below the detection range of the unit and the unit must recalibrate its optical gain levels This step may only be necessary after initial installation To perform a Manual Reset follow this simple procedure e STEP 1 Rotate input s
56. d Down Synchro Clamps Consult reference drawing in Appendix A for most current mounting and dimensional information Figure 2 illustrates how the encoder becomes mounted to the panel via three hold down clamps Order Micronor P N 6099 20 651 for MR322 encoder or 6099 20 652 for MR326 encoder Each kit is a set of 3 clamps and 3 screws Use a flexible coupling for connecting to the mechanism s shaft STEP 1 Check that there are no burrs on the mating shaft and that the set screws on the flexible coupling are backed off so they don t bind when slipped on the shaft STEP 2 Slide the coupling onto the mating shaft If the mating shaft has a flat or a key way make sure that the set screw is aligned to land on the flat part of the shaft STEP 3 Mount the encoder to its bracket or panel with the Synchro clamps Do not tighten them all the way Position the encoder shaft with the mating shaft so they are co aligned with a gap of about 1 8 inch 3mm Check the misalignment specifications for the coupling to ensure that it is not overstressed Tighten the encoder s synchro clamp mounting screws STEP 4 Align the flat of the encoder shaft with the flat or keyway on the mating shaft Center the coupling over the gap between the two shafts and tighten the setscrew on the mating shaft Wiggle the encoder shaft back and forth slightly to ensure that the coupling is not binding and it is at its free length Now tighten the set screw on the encoder
57. e value of the Counter OmA represents the zero position and 20mA corresponds to the Current Scale Reg 27 setting regardless of direction or sign Overrange extends from 20 24mA maximum Current Position Mode 4 Underrange SCALE 0 SCALE COUNTER VALUE Page 60 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 Unipolar output range of 4 24mA representing the absolute value of the Counter 4mA represents the zero position 20mA corresponds to the Current Scale Reg 27 setting regardless of direction or sign Overrange extends over 20 24mA range Current Position Mode 5 Underrange 4 222 SCALE 0 SCALE COUNTER VALUE 6 Window mode with Output range of 4 24mA 4mA represents zero and negative position and 20mA corresponds to Current Scale Reg 27 Overrange extends over 20 24mA Current Position Mode 6 Underrange SCALE 0 SCALE COUNTER VALUE In all cases there is an overrange capability of 4mA to 24mA Use the MODE command to select the desired output mode Current Output Cautions E Current outputs are inherently short circuit proof e e The maximum burden resistance for the MR320 is 500 Ohm with a 24V I power supply At 24mA that represents a voltage drop of 12V e Tominimize internal heat dissipation we recommend that the user inserts a burden resistance to always assure at least
58. e and Sensor the cable should be routed and installed such that e Proper bend radius specifications are not exceeded and e There is no pinching or other deformation of the optical cable at any point e Follow best installation practices which meet or exceed applicable industry standards such as the BICSI Information Transport Systems Installation Manual for commercial datacom installations ARINC 628 Part 6 or ARINC 806 for avionics applications SAE 55088 for aerospace etc Proper functioning of a ZapFREE Fiber Optic Rotary Encoder is very dependent on having clean optical connections Before making any optical connections you should make sure that Connector ends have been properly cleaned and visually inspected before making connection to the ZapFREE hardware e When required thorough cleaning should be performed with reagent grade 99 Isopropyl Alcohol IPA and dry lintless wipes e g Kimwipes Field portable cleaning tools such as the CLETOPS are suitable when only surface cleaning is required e For visual inspection a 200x or 400x high quality fiber optic connector inspection microscope is recommended Dirty or damaged connector ends can also damage the connector being mated to Unmated connectors should always have dust caps installed to protect the polished ends from airborne contaminants or damage from mishandling Fiber Optic Connector Cleanliness Is Important Always clean and visually inspe
59. e specifically meant for diagnostics used during setup maintenance and troubleshooting An RPM and Counter command are available to retrieve speed and position data while the encoder is running The format for the commands and responses in general follow the ISO 1745 specification Page 44 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System The MR320 implements a limited set of Modbus compatible functions Contact Micronor for information on how to use the Modbus interface 4 What Is ZAPPY Setup Software 4 ZAPPY is user friendly setup program provided free by Micronor Typically ZAPPY is E used one time to configure the parameters for any MR320 Auxiliary Functions that are to be used in the customers application analog outputs etc The software runs on Windows XP Vista or 7 with net Framework installed Unless you plan to connect the MR320 to your own computer equipment for real time digital data retrieval you do not need to become familiar with the Communications protocol described herein There are three categories of commands e Configuration for Parameter Setup Commands for retrieving operational values such as RPM Counter e Diagnostic commands for reading and setting hardware status Configuration commands are those that are intended to be executed once either in the factory or during initial setup by the customer Although these commands can be executed at any time they
60. equired for any reason 4 3 Damage in Shipment If you receive a damaged instrument you should 1 Report the damage to your shipper immediately 2 Inform MICRONOR Inc 3 Save all shipping cartons Failure to follow this procedure may affect your claim for compensation Page 16 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 Installation Guidelines 5 1 System Planning There are two recommended steps in designing and installing the fiber optic rotary encoder 1 Select cable and connectors which will meet performance reliability and regulatory contractual requirements Many applications operating in harsh or hazardous locations must follow industry specific contractual or government regulations i e mines building codes ATEX etc Connectors and cabling may need to meet flammability radiation temperature corrosion resistance altitude shock vibration and or other specific requirements Insertion Loss Performance Requirements Use only high quality SUPER PC epoxy and polish terminated connectors c and termini epoxy less or pre terminated connectors tend to create back reflectance return loss performance problems Ahigh quality optical connector should have a worst case end of life insertion loss of 0 5 dB over time and all environmental effects The typical beginning of life aka out of box loss should be considerably less than 0 25 dB e Good qualit
61. equires IPA amp Dry Wipes OR Pre Wetted Wipes amp Wipes 71 Figure 24 How Use the MR321C Kit For Cleaning Duplex Optical Connectors and Interfaces uci A SG M Ur se u suu sanka suu usa uru eaves aus tat 72 Figure 25 How To Verify Optical Continuity With A Visual Fault Locator 73 Page 5 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 1 Product Description The MR320 Series ZapFree Fiber Optic Incremental Rotary Encoders are the ideal EMI immune sensor solution for use in all types of harsh environments and hazardous locations The MR320 series is the second generation of Micronor s fiber optic encoders originally released as the MR310 series in 2004 and awarded U S Patent 7 196 320 The Micronor fiber optic encoder system is comprised of a passive Sensor linked via a duplex fiber optic link to the remote Controller Module The motion control designer can count on these features MR320 Controller MR320 Sensors 24 VDC A B Analog Digital RS485 USB 1024ppr 1024ppr 360ppr 360ppr 360ppr gt 2500 meters gt Duplex 62 5 125 MM 3l Fiber Link MRI Compatible 100 passive optical sensor Immune to electromagnetic interference EMI No electromagnetic emissions No ground loops Intrinsically safe Fiber optic link can extend to 2500 meters Industry standard Duplex LC or harsh environment
62. es bearing life is shortened Excessive runout will cause premature bearing failure For this reason the minimum amount of shaft loading or misalignment should always be the goal when installing an encoder Consult the MR324 data sheet for detailed product description dimensions and instructions for mounting the encoder using the optional MR314A or MR314B Mounting Kit Generically follow these procedures for mounting the encoder STEP 1 STEP 2 STEP 3 STEP 4 Check that there are no burs on the mating shaft and that the shaft length is correct for the encoder Attach the Tether Arm to the encoder body using the supplied hardware Slide the assembly onto the mating shaft Rotate the Tether Arm until it is at the correct orientation and align with the mounting feature on the shaft housing Using the appropriate hardware to secure the tether arm in that position Check to make sure that the tether is still in it s unstressed condition and then tighten the shaft clamp on the encoder Check for excessive runout as you rotate the shaft by hand Excessive runout will cause premature bearing failure If the runout is excessive then reinstall the encoder Otherwise installation is complete Page 22 of 85 ICRONOR INC For applications with fastening points located on variable pitch circle For applications with high axial play For applications with reduced mounting space For applications with
63. esults If visual inspection shows endface damage scratches or pits in the core region then have the connector end repolished or replaced 7 4 Troubleshooting If the encoder system does not function but lights turn on and does not pass the ZAPPYTM Performance Verification procedure consult Section 5 11 then it is necessary to determine where the problem exists Controller Sensor or fiber optic link Be sure that you have cleaned all optical connections per Section 7 3 and verified continuity of the fiber optic link per Section 7 5 If unable to locate the source of the problem then contact Micronor for additional troubleshooting and fault isolation assistance 7 5 How To Verify Visual Continuity of Fiber Optic Cable Link Figure 25 provides detailed flow chart showing how to verify continuity of the encoder optical link using a a visual fault locator a very basic inexpensive and useful piece of fiber optic troubleshooting equipment Optical Warning Never look directly at the output of an optical fiber with any source connected to it Under some conditions optical radiation can cause either temporary or permanent eye damage Page 72 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System How To Verify Visual Continuity of Fiber Optic Encoder Link PREREQUISITES Control 1 Cable Segments are installed and Cabinet interconnected gt 2 Fluke Networks Vis
64. ethod Requires IPA amp Dry Wipes OR Pre Wetted Wipes amp Dry Wipes 7 3 2 DRY Cleaning Method Micronor MR321C DRY Cleaning Kit The DRY method is meant for surface cleaning of the ferrule endfaces only There are several products available e g CLETOPS ReelCleaner etc and they all work satisfactory and typically clean the connectors quite well When the DRY Method does not completely remove all contaminants then use the WET Method Micronor offers the MR321C Duplex LC Fiber Optic Cleaning Kits as a simple and portable DRY cleaning solution for Duplex LC plugs and receptacles One Cleaning Kit is supplied with each shipped lot of encoders and modules Detailed cleaning instructions are supplied with each Cleaning Kit Page 71of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Open unused Pad and Insert a new Stick into Port A hold in palm of hand Twist twice remove amp discard Wipe connector end faces Insert a new Stick into Port B in long stroke on the Pad Twist twice remove amp discard Then discard used Pad DO NOT REUSE DO NOT REUSE CLEANING STICKS CLEANING PADS Figure 24 How Use the MR321C Kit For Cleaning Duplex LC Optical Connectors and Interfaces Always visually inspect with a fiber optic microscope the optical plug or port inside connector after cleaning If the terminated polished end is still dirty or appears scratched try the WET cleaning for better r
65. ference for the MR320 Encoder System EXIT Close ZAPPY program Figure 13 ZAPPY HOME page and Tool Bar description Page 32 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 11 Initial Performance Verification with ZAPPY If you are planning to use the encoder in pure hardware mode that is using the Direct Quadrature Outputs only then using the ZAPPY software is not necessary but highly recommended under these conditions e Performance verification upon receipt e Totake advantage of the numerous built in Auxiliary Functions that the MR320 Controller offers e If the MR320 module will be used under USB or Serial Interface control to become familiar with the various programmable functions The ZAPPY software is designed for RS232 communication with the MR320 module via a PC running WINDOWS XP Vista or 7 and net Framework installed and connected using either the optional MR232 1 RS422 RS485 to RS232 Adapter Cable or USB cable ZAPPY Software installation and connection STEP 1 STEP 2 STEP 3 STEP 4 Install ZAPPY software on the target PC Connect PC to MR320 Controller via either USB cable or 2 MR232 1 cable connecting between J3 and PC s COM1 serial port Apply power to the MR320 and start up the ZAPPY software HOME page appears if PC and Controller are communicating properly as shown in Figure 13 IMPORTANT NOTE FOR USB USERS
66. ffected by this parameter setting The user must assure proper wiring to achieve the desired direction of an externally connected device 6 5 13 Hardware Reset Value Register 2 Register Address 2C The internal Position Counter will be preset to this pre programmed value whenever the Hardware Reset input goes from logic to logic 1 This function sets the encoder to an absolute position based on an external reference switch the Hardware Reset When the switch is activated then the absolute position is known This parameter tells the encoder its absolute position when the hardware signal is generated Sometimes this function is also called homing HARDWARE RESET VALUE Mode Example shown uses Current Position Mode 6 Where R RESET Value of Current Scale Value COUNTER VALUE The programming is as follows lt EOT gt EA lt STX gt 2C lt preset value gt lt ETX gt lt BCC gt Check for a lt ACK gt that verifies value has been accepted Default value O Page 65 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 5 14 Reset On Count Homing Register 2D Register Address 2C The internal Position Counter is automatically reset to O whenever its absolute value matches this pre programmed value This is a useful command when it is desirable to use the encoder as an absolute position indicator over the course of one or multiple turns For instance the MR314 encoder m
67. finds the COMx Port and communications is complete STEP 2 Repeat STEP 1 one or two more times If you have further problems please contact Micronor Technical Support 7 2 2 Testing The Serial Cable You may test the interface cable by converting it to a NULL Modem Cable STEP 3 Disconnect two wires from Pins 3 and 5 of J3 and twist the two ends together e Note the colors on the cable and pin location before removing otherwise you may reconnect them in the wrong position e You must leave J3 connected to the MR320 box so that 5V power is supplied to the interface cable through 10 Page 69 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System STEP 4 Now start up WINDOWS Hyperterminal on your PC Type in any character and you should see that character being echoed back on the Hyperterminal screen AS shown in Figure 21 configure Hyperterminal with the proper communication settings Bits Per Second 9600 Data Bits 8 Parity None Stop bits 1 and Flow Control None STEP 5 If the above is successful then we know that the computer does send out and receive back signals properly through the cable Verify again that the Hyperterminal communication settings see Figure 21 have been set correctly for communicating with the MR320 because Hyperterminal can send and receive with any mix of settings MR310 X HyperTerminal M1 Properties Bts per second 9600 Data bts 8 Figu
68. formation The mechanical workings of an encoder are straightforward The rotor portion is coupled to a shaft so that it will turn without slippage and the encoder body is prevented from rotating so that it serves as a physical reference for the rotation of the rotor Here are two basic ways to mount the Shaft Encoder Counter Bored Panel Mount via Screws Through Hole Panel Mount with Synchro Clamps Page 18 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Important Considerations About Encoder Hook Up Do not alter or modify the shaft otherwise the accuracy of the encoder and the dependability of the bearings and gaskets will be affected Always use a flexible coupling between drive shaft and encoder shaft e Bearings are sensitive Always handle the encoder with care when handling and mounting to the mechanism e mechanical life of any encoder is mainly determined by the loading on the unit s bearings As either the radial or axial shaft loading increases bearing life is shortened For this reason the minimum amount of shaft loading or misalignment should always be the goal when installing an encoder 5 2 1 Face Mount to Counter Bored Panel Consult encoder s reference drawing provided in Appendix A for most current mounting information dimensions and tolerances Figure 1 illustrates how the encoder becomes mounted to the panel via three screws M4 for MR322 and M6 for MR32
69. generally affect system parameters that only need to be setup once User commands are those that are intended to be executed any time during normal system operation Diagnostic commands are those that are intended to be used by trained technicians for setting and trimming the hardware or troubleshooting in the field All commands utilize certain control characters as defined by the ISO 1745 spec The control characters and their designations are shown below STX Control character B hex O2 ETX Control character C hex 03 EOT Control character D hex O4 ENQ Control character E hex 05 ACK Acknowledge hex 06 NACK NOT Acknowledge hex 07 BCC Block Check Character an XOR sum of data Within each of the three categories of commands are two types of commands 1 Data Setup 2 Data Request All commands have a Data Request type with an accompanying Data Return Commands that have a Data Setup type are used to establish a system operational parameter e g setting the Voltage Output Scale The formats for each of the two command types and the data return are standard for all commands The formats are Data Setup lt EOT gt A lt STX gt r data lt ETX gt lt BCC gt A The MR320 address default of EA settable by the user Page 45 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System r Register number of the item being accessed The Register number is really the command i e number
70. haft end The encoder Counter is volatile and will be reset once electrical power is lost Example Preset the Encoder Counter to value lt EOT gt EA lt STX gt 200 lt ETX gt lt BCC gt Example Preset the Encoder Counter to value 250 lt EOT gt EA lt STX gt 20250 lt ETX gt lt BCC gt 6 5 2 Divider Register 21 Register Address 21 The quadrature signal produced by the encoder can be divided down by a factor of 2 to 16 383 i e if you program a divide by 128 the unit will now produce 2 pulses per revolution when a 256ppr encoder is used This function works reliably up to 52kHz encoder frequency 3 000rpm for an MR324 encoder with 1024 slits Consequently users should not attempt to rely on this output if the encoder turns faster than 3000RPM MR324 The divided signal is externally available on connector J3 Page 53 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System To set the Divider to divide by 5 send lt EOT gt EA lt STX gt 215 lt ETX gt lt BCC gt Range User selectable and 2 16 383 Fa special selection is the value The value turns this function OFF This may be useful when the encoder is expected to operate at high speeds and the divided output is not required When enabled the divider function absorbs a significant amount of processor time and thus turning it off frees processor time for other functions such as RPM measurement and analog outputs
71. haft of Sensor e STEP 2 While rotating shaft momentarily depress the Reset button as shown in Figure 12 STEP 3 Stop rotating When you press the reset switch the POWER LED will turn OFF as long as the switch is pressed You may press the switch as many times or as long as you wish However a proper calibration will only occur when the encoder is in motion while the reset switch is being depressed Figure 12 How to Manually Reset the Controller Module With WAGO Tool 5 10 ZAPPY Installation and Setup Software Micronor provides ZAPPY with the MR320 Controller Module a user friendly program used to set up parameters associated with the various Auxiliary Functions i e analog outputs Divider etc This information is then uploaded and stored in the non volatile memory of the Controller ZAPPY runs on a PC running Windows XP Vista or 7 net Framework and an available USB or RS232 COM port A USB cable is provided with each system or controller order To use an RS232 DB9 port the optional MR232 1 Converter Cable is required The ZAPPY software installs like standard PC software If it does not start automatically when the CD is installed then use the Windows RUN function from the Start Menu to find and execute the Setup exe file The ZAPPY HOME page and description of the ZAPPY tool bar are shown in Figure 13 Page 31 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System
72. he encoder is not rotating no gain calibration is being performed Page 41 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System The analog voltage for each channel is compared to a known level and via comparators A and B the quadrature signals are digitized Quadrature outputs are available in both RS422 line driver and push pull electrical format The current output voltage outputs are all generated by the microprocessor via the two 12 bit D A converters The divided output comes directly from the microprocessor and routed via the line driver buffer to the terminal Output configuration may vary depending on application Consult with MICRONOR service personnel MR320 Controller Module Real Time Quadrature Outputs A Variable Gain Amplifiers gt Line Driver Outputs mo Push Pull Outputs Divider Outputs A Line Driver Outputs 3 B A Push Pull Outputs B 7 RS422 485 lt Serial Interface MR320 Serial Series Interface gt f Fi be r ptic Outputs i i DIA 12bit 12bit 100 Rotary 15 32 vc VDC E os GND GND 12bit DOA Figure 20 Block Diagram of the MR320 Series Fiber Optic Encoder System The microprocessor measures the Speed RPM by measuring the elapsed time between encoder periods The internal timer resolution is 200ns providing accuracy to very high speeds
73. iFault with NF380 Adapter or equivalent rs 3 Personnel Required Preferably 2 people one at control cabinet where Controller installed and other to walk cable run ODVA Industrial LC Insert and trace one fiber Y channel at a time Connect Visual Fault Locator to A a m Channel A of Duplex LC end of P Link that would connect to N Controller Module Duplex LC y Is there There is a break or high loss point or bad briqht Red connection in the optical link Are there other Beni visible inline interconnections If Yes move to the at LC end next nearest interconnection point to view J i output to determine which is the bad segment NO Repeat For Channel B in Yes m LC Clean Connector Verify that ferrule E ferrule glow m glow no longer glows NO Connector is probably clean and good Was this the last LC channel to check e Clean Ferrule Ferrule does not glow and Bright Exit Beam Yes _ Y _ Continuity Dirty or Scratched inui Ferrule Check Completed Faris With Dispersed Exit Beam 4 Figure 25 How Verify Optical Continuity With Visual Fault Locator Page 73 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 7 6 Blinking Error Codes Besides indicating Power On the PWR LED on the MR320 module is also used to display various problem and or error conditions In normal oper
74. ic pigtail with Duplex LC plug or ODVA LC Duplex IP LC receptacle MM 62 5 125um Graded Index 0 275 Maximum Fiber Link Length See MR320 specifications for maximum distance and optical link loss range Environmental Specifications Temp Range ATEX Classification STANDARD Option ATEX Rating U S Haz Rating EXTENDED Option ATEX Rating U S Haz Rating Intrinsically Inherently Safe Simple Apparatus 40 to 80 C Ex op is I II 80 C T6 Class I II II AEx op is Group I II III 80 C T6 Zone 0 1 2 20 21 22 Division 1 2 60 to 150 C Ex op is I II 150 C T3 Class I II II op is Group I II III 150 C T3 Zone 0 1 2 20 21 22 Division 1 2 Humidity 0 to 95 RH non condensing Ingress Protection For version with fiber optic pigtail IP54 For version with built in IP LC receptacle 65 Page 13of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Mechanical Specifications Shaft 12mm x 25mm L with 4x20mm Keyway Max Shaft Load Radial 140N 31 Ibf Axial 15 Ibf System MTBF 8 96E 05 hours 102 years Bearing Life calculated at 2 500 RPM and 50 of Maximum Radial Axial Shaft Load Housing 2 90mm x 82 5mm L Weight 615g 21 5 oz Specifications subject to change without notice Page 14 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder S
75. ification At any one time the MR320 Controller can support one of four modes of serial communications using ISO 1745 protocol specification RS422 RS485 RS232 Requires optional MR232 1 Converter Cable and available COM Port Modbus RTU Contact Micronor for Modbus instructions e USB The serial interface is set up as follows e Full Duplex Single addressable bus interface Factory Address 234 9 600 baud rate 1 Start Bit 8 Data Bits 1 Stop Bit Factory Standard Address is set to Hexadecimal EA 234 decimal The command format and responses of the MR320 Controller follows the ISO 1745 specification For detailed programming instructions please refer to Sections 6 3 through 6 5 in this manual How The USB Serial Emulator Works t The USB interface utilizes the Future Technology Devices International FTDI s interface chip www ftdichip com This chip communicates via USB but within X the PC emulates a serial COM port When ZAPPY M is installed the appropriate FTDI driver is installed on the PC and the conversion from USB to Serial is completely transparent to the user When when communicating via USB the MR320 Controller operates at a fixed 9600 Baud and base bus address settings 6 2 2 Communications Protocol The MR320 Controller incorporates a serial interface with RS422 RS485 level signals A number of commands allow for configuring the operational parameters of the Controller while other commands ar
76. iltering down to 1Hz 1 An tt n Filtered analog output value Previous filtered analog output value n filter constant in milliseconds new analog unfiltered value The programming for the Mode is as follows lt EOT gt EA lt STX gt 25 lt filter data gt lt ETX gt lt BCC gt Range 256 Default 32 equivalent to 5Hz filter frequency SF The analog output is updated every 800us thus when setting the filter value to n an approximate time constant of n ms can be expected The MR320 measures the period between passing slits of the code wheel When the encoder is turning slow so that the elapsed time between slits is large then 1ms then the low pass algorithm is changed Page 57 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System and the time constant becomes larger as the encoder turns slower This adaptive filtering algorithm provides for a smooth output signal change F If no filtering is desired simply turn the filter OFF by setting it to value 1 When in position mode no filtering occurs regardless of the filter setting 6 5 7 Current Mode Register 26 Register Address 26 The scalable current output provides filtered RPM or POSITION analog output depending upon the chosen mode The programming for the Voltage Output Mode is as follows lt EOT gt EA lt 5 gt 26 lt mode gt lt gt lt gt Default SPEED Mode O
77. ing reflect its nearly zero V output state Turning one of the sources Off will suspend normal MR320 operation as well as initiate a red button labeled RESET HARDWARE MODE Clicking this button will restore the MR320 to normal operation with all sources On Diagnostic Report This function allows the various monitoring points to be saved to a file The active status information can then be forwarded to the customer s engineering group or Micronor to help troubleshoot any encoder system problems that might arise Page 37 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System WM ZAPPY Encoder Setup VER3 52 2004 2012 by MICRONOR ING Home Encoder Dagnottes batnxtone gri Operate SHORT INSTRUCTIONS Remote Interface Module MR310 MR320 Firmware V 1 21 and up Terminal Blocks J1 Terminal 1 A Line Driver 2 Line Driver 3 GND 4 B Line Driver 5 B Line Driver 6 GND 7 24V source amp sink 8 24V source amp sink 9 GND 10 Vs power 15V to 32V 11 Counter RESET 12 Sheld J2 Terminal Divider A 5V TTL Divider source amp sink GNO 2 3 Figure 19 INSTRUCTIONS Screen View offers Online Instructions and Reference Information Page 38 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 Operation and Description of Functions In it
78. lex connector as shown There should be a positive click when the connector is engaged properly Page 24 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Figure 5 Making Duplex LC Optical Connection to MR320 Controller 5 6 Making Electrical Connections to the Controller Module Figure 9 illustrates all connections both electrical and optical and controls on the MR320 Controller Electrical connections to the MR320 Controller are via three WAGO Quick Connect plugs and USB receptacle A set of three WAGO Quick Connect plugs three strain relief plates and WAGO Insertion Tool are supplied with the Controller Module to facilitate connections to J1 J2 J3 and are cross referenced in Figure 6 below All three Terminal Connectors are WAGO type Mini Multi Connection System with 2 5mm spacing WAGO Connector Part Numbers for Terminal Connectors Mese t Location MICRONOR PN WAGO PN J1 63 733 112 733 112 ak aet J2 63 733 110 733 110 24 4 13 63 733 106 733 106 63 233 335 233 335 Figure 6 Cross Reference for WAGO QuickcConnect Plugs used for 11 22 13 Connections These terminal connectors are non screw connections and accept wires from AWG20 through AWG 28 or 0 5mm to 0 08mm The WAGO terminal blocks are a convenient way to pre wire harnesses To make connections consult Figure 7 and the following steps 1 Strip the wire approx 0 22 5mm to 6mm length
79. lock diagram shown in Figure 20 The design philosophy emphasizes reliability and thus the signal path from encoder to the real time quadrature output is implemented entirely in hardware Even if the microprocessor malfunctions the actual quadrature signal will still accurately track Of course we do not recommend operating the unit when the microprocessor indicates an anomaly The Controller emits two optical signals at differing wavelengths 850nm and 1300nm via the Transmit fiber to the Sensor Rotation sensing is accomplished by splitting the two optical signals into to their individual wavelength components These two signal paths are direction and speed dependent modulated and sent back to the MR320 Controller via the Receive fiber The optical receiver then separates out the two signals into their respective wavelengths and convert each to an analog electrical signal individually representing either the A or B quadrature signal However the signal must first be amplified before it can be digitized The analog output of each channel is routed to a peak converter and thus when the encoder rotates the microprocessor can accurately determine the maximum received signal and adjust the voltage gain for each signal channel The power calibration inside the microprocessor determines when the power level is outside a safe range and will recalibrate the gain of each input amplifier This typically happens every one minute However if t
80. lt range data gt lt ETX gt lt BCC gt Range Description 0 value O turns this function OFF This may useful when the encoder is expected to operate at high speeds and the voltage output is not required Disabling this function leaves processor resources for other functions Page 56 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System such as the quadrature divider It is recommended to disable the output when it is not required 10 10 000 In a SPEED mode Register 23 a Voltage Scale setting of X SPEED establishes 10V full scale value to correspond to X RPM 1 8 388 607 In a POSITION mode Register 23 a Voltage Scale setting of X POSITION establishes 10 full scale output to correspond to X Counter value QUA special selection is the value O The value O turns this function OFF This may be useful when the encoder is expected to operate at high speeds and the voltage output is not required Disabling this function leaves processor resources for other functions such as the quadrature divider It is recommended to disable the output when it is not required 6 5 6 Voltage Filter Register 25 Register Address 25 A user configurable low pass filter exists to allow smoothing of the calculated RPM based on user constants It is the filtered RPM that is output to the voltage DAC The 3dB filter point is programmable from 500Hz no f
81. n ATEX Rating U S Haz Rating Intrinsically Inherently Safe Simple Apparatus 40 to 80 C Ex op is I II 80 C T6 Class I II II AEx op is Group I II III 80 C T6 Zone 0 1 2 20 21 22 Division 1 2 Humidity 0 to 9596 RH non condensing Ingress Protection IP67 Mechanical Specifications Shaft 12mm x 15 6mm L Moment of Inertia TBD System MTBF 10 Bearing Life at 1096 of max radial and axial load at 3000 rpm 1 410E 07 hours 1609 years Housing 125mm x 90mm L Weight 1505 g 53 oz Specifications subject to change without notice Page 12 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 3 5 MR326 Size 90mm Heavy Duty Sensor Functional Specification Description Specification Resolution Standard options are 100 128 256 or 360 ppr Max Speed Continuous Operating Speed Mechanical 8000 rpm Electrical 8000 rpm Direct Quadrature outputs used with all Auxiliary Functions OFF 5000 rpm Direct Quadrature outputs used and all Auxiliary Functions ON Auxiliary Functions are processor dependent functions e g Divider Multiplier Counter and Analog Outputs Contact Micronor for more information about speed versus operational trade offs IMPORTANT NOTE Derate maximum speed by 100 rpm per degree Celsius when operating above 60 C Optical Interface Options Fiber Type Duplex fiber opt
82. nd reset the Scale value to 10 000 If Current Mode set for POSITION the maximum entry is 9 000 000 counts The entered value establishes what position counter value will produce an output of 20mA NOTE O turns off current output Must be power of 2 1 2 4 8 etc If input is not power of 2 then parameter is accepted and converted to next power of 2 Counter Reset Mode 29 R W 0 Yes Defines how the hardware input resets the internal counter 0 Edge Triggered resets the counter at the rising edge 1 Debounced Trigger when state changes from O to 1 after 60ms debounce time used for switch or relay input Counter Multiplier 2A R W 0 Yes Internal counter increments using either a full or half cycle of the quadrature signal 0 Full cycle counts 1 Half cycle counts x2 multiplier Note This Aux Function only affects POSITION mode operation of the analog outputs Encoder Direction 2B R W 0 Yes Defines output results based on turning direction of the encoder when CW outputs are positive 1 reversed outputs Note quadrature outputs are not affected Hardware Reset Value Reset On Count 2C 2D R W R W 0 9 000 000 0 9 000 000 0 Yes 0 Yes Counter will be preset to this value when the hardware input changes from logic O to logic 1 Internal counter resets to O when this value is reached Page 50 of 85
83. nt to double the number of slits the encoder has This will ensure that the speed output will be correct Due to the inner workings of the MR320 firmware the Controller can only be set to x2 multiplication It is not possible to do x4 or higher multiplication 6 5 12 Encoder Direction Register 2B Register Address 2B This parameter defines the encoder s rotational direction When this parameter is set to 0 default all outputs follow the right hand rule convention When the encoder turns clockwise then the speed indication is positive and the position counter increments Analog outputs follow accordingly i e a positive speed is indicated by a positive voltage When this direction parameter is set to 1 then all directional outputs are reversed This may become useful when an encoder cannot be installed to turn in the CW direction within a system definition for CW being positive speed or positive position The programming is as follows EOT EA STX 2B 0 1 lt gt lt BCC gt Check for a ACK that verifies command has been accepted Default Mode O CW direction Page 64 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Analog outputs digital read out follow CW direction 1 Analog outputs and digital read out are reversed from normal CW direction Quadrature outputs A amp B and divider outputs A amp B are not a
84. nter RESET Input located on pin 11 of J1 The programming for this function is EOT EA lt STX gt 29 mode lt gt lt gt Check for a ACK that verifies command has been accepted Default Mode Edge trigger Modes Description 0 RESET Input is triggered by the rising edge first transition from OV to 5V The uncertainty of this input is maximum 800us 1 The RESET Input is conditioned for debouncing the input signal such as a push button or relay contact This setting allows a debounce period of approximately 60ms when in Debounce mode the signal must be at least 100ms in length to be effective Page 63 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 5 11 Counter Multiplier Register 2A Register Address 2A The internal position counter may be multiplied by two using only one half of a quadrature cycle to increment decrement the internal counter The programming is as follows lt EOT gt EA lt STX gt 2A lt mode gt lt ETX gt lt BCC gt Check for a lt ACK gt that verifies command has been accepted Default Mode 0 Multiply by 1 Ls ns C Normal counting every cycle is count 1 This mode effectively doubles the position resolution of the internal Counter by incrementing after every half quadrature cycle When mode 1 x2 multiplication be sure to set the slit cou
85. o allow smoothing of the calculated RPM based on user constants It is the filtered RPM that is output to the voltage DAC The 3dB filter point is programmable from 500HzZ no filtering down to 1Hz 1 Amt n Filtered analog output value Previous filtered analog output value n filter constant in milliseconds new analog unfiltered value Page 62 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System The programming for the Filter Mode is as follows lt gt EA STX 25 lt filter data lt ETX gt lt gt Where data can be from 1 to 255ms Default 32 approx 10Hz filter frequency SF The output is updated every 1 024ms thus when setting the filter value to n an approximate time constant of n ms can be expected The MR320 measures the period between passing slits of the code wheel When the encoder is turning slow so that the elapsed time between slits is larger then 1ms then the low pass algorithm is changed and the time constant becomes larger as the encoder turns slower This adaptive filtering algorithm provides for a smooth output signal change at low rpm 85 If no filtering is desired simply turn the filter OFF by setting it to value 1 87 When in position mode no filtering occurs regardless of the filter setting 6 5 10 Counter Reset Register 29 Register Address 29 The internal Position Counter may be reset by applying a 5V signal to the Cou
86. on of the command function including information about acceptable data range Parameter functions are described in more detail after the summary tables The term n a means not applicable Page 47 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 3 1 Configuration Commands Registers 10 19 These commands are used to establish system operational configuration and calibration In general these parameters should not be changed by the user It is possible however to do tricky things For instance the user may change the number of encoder slits and thus get fractional scaling for the analog outputs Title Reg Read Range Default Saved Description Write Resolution 10 R W 95 10000 180 Yes Sets the number of slits in the encoder used for RPM calculations Calibration 11 R W 1 200 84 Yes Sets the time interval for performing gain Interval calibration The value passed is multiplied by 2 55504 seconds to determine the actual time interval Encoder 12 R W 17 255 234 Yes Sets the MR320 serial address for commands Address The value is entered in decimal with this command but is sent as hex when sending commands to the device Operating 13 R W 1 3 n a n a Allows user to set or restore operational Params parameters 1 Save current parameters to EEPROM 2 Restore Power Up parameters from EEPROM 3 Restore Factory Defaults does not save to EEPROM Retu
87. ontroller module may occur Input range is 15 to 32VDC e While the Controller is protected against cross polarization of the power supply connections the unit will not operate if wrongly connected The unit maybe damaged by connecting a power supply to an input or output e There is an initial in rush current in excess of 100mA The power supply must be capable of handling that current Page 28 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 7 Fiber Optic Cable Connections and Routing Acomplete and functional MR320 Series Fiber Optic Encoder System consists of a MR320 Controller and MR320Series Passive Sensor connected by an optical link The fiber link shall be comprised of standard 62 5 125 Graded Index multimode fiber Terminations may be either Duplex LC or ruggedized ODVA LC Duplex 1 depending on the application and expected environment The following figures illustrate some of the optical link configurations possible For harsh environments Micronor recommends the ruggedized IP66 IP67 rated ODVA LC Duplex IP LC interface as shown in Figure 11 For application assistance please contact Micronor sales and technical support Figure 10 Typical MR320 Series Fiber Optic System connections using Sensor with Duplex LC Pigtail gt R lt Figure 11 Typical MR320 series system using Harsh Environment ODVA LC Duplex IP LC Connections Fiber Optic Connector Optical Performan
88. periodic Calibrate mode which adjusts for any changes in optical power Typically the Gain values ranges from 3 to 20 and the optical power should fall within the range of 25 5 dBm to 33 dBm Hot or high power optical transmitters are possible Power Supply Voltages Measures internal voltage reference as well as internal 5V 12 supplies ANALOG Outputs The DAC output 0 4095 of both the Voltage and Current analog outputs is measured and shown The output value will depend on the Mode Scale and Filter settings for that analog output see Encoder table view per Figure 14 For example if the encoder is stationary RPM Current Mode O bipolar output for 0 24mA with 12mA being mid scale value of O Current Scale2100 100 RPM Current Filter set to any value then the DAC output will be 2048 half scale and the actual current output will be 12 mA 0 RPM Speed Measurement The encoder measuring speed by evaluating the real time slit to slit time period This field displays time and frequency values corresponding to current shaft speed Manually spinning the encoder shaft by finger can usually achieve 50 200 RPM but results from sample to sample may vary widely Calibration Both sources should normally be checked to indicate ON CH A and CH B correspond to 1300nm and 850nm respectively If either of the sources is turned off then the VOLTAGE TEST and INPUT AMPLIFIER fields for that channel will correspond
89. re 21 Set up Parameters for HYPERTERMINAL Program 7 3 Fiber Optic Connector Cleaning Mating clean fiber optic connector end faces is essential to proper performance of any fiber optic based equipment When fiber optic connectors are not properly handled dirt oil and other contaminants can accumulate on the ferrule body as well as the critical tip or end face as shown in Figure 22 Mating of dirty connectors will result in high loss as well as potentially damaging mated end faces Page 7Oof 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Figure 22 Dirty and Clean Fiber Optic Connector Ferrule and Endface Views There are two basic methods WET and DRY for cleaning fiber optic connectors The method depends on the degree and spread of surface contamination 7 3 1 WET Cleaning Method The WET method is the most fundamental and complete but manual way of cleaning optical surfaces and connector endfaces As shown in Figure 23 the consumables required are reagent grade isopropyl alcohol IPA and dry lintless non abrasive wipes or swabs e g Kimwipes TexWipe Swabs etc Pre saturated wipes e g Polywater Type FO etc may also be used if they also have a low non volatile residue content In practice saturate the wipe with IPA or use an approved pre wetted wipe and then rigorously wipe the outer and end surfaces then dry completely with a clean dry wipe Figure 23 WET Cleaning M
90. rn values are O if last command was a restore or 10 if last command was save to EEPROM Value indicates parameter presently being saved When a save command is issued the device will only respond to a data request to this register All other commands will be until the write is complete Command 14 RD n a n a n a Returns the status of the last issued command Status System 15 R W n a n a n a Returns the system error status using a Setup Status command clears errors Device 16 RD n a n a n a Returns the ASCII string device name MR320 Name Version 17 RD n a n a n a Returns the ASCII string of the software version form MM mm Serial 18 RD n a n a n a Returns the ASCII serial number of the device Number Reset 19 R W n a n a No Causes a soft reset of the MR320 Duty Cycle 1A R W 80 180 105 Yes Typically it should be left between 100 and 110 Adjust An oscilloscope is required to adjust the setting Page 48 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 6 3 2 User Commands Registers 20 2A These commands are typical commands the user will utilize during installation or normal system operation Title Reg Read Write Range Default Saved Description Counter 20 R W 16777215 1677215 Obtains the value the encoder counter This is a 32 bit value The user can reset the counter by sending a 0 wi
91. ry is 9 000 000 The entered value establishes what position counter value will produce an output 10V sign depends direction Must be power of 2 1 2 4 etc If input is not power of two then parameter is accepted and converted to the next power of two Sets the mode of the current output For SPEED bipolar output range 0 12 24 mA where 12mA represents Orpm 1 For SPEED unipolar output range 0 24mA where OmA represents Orpm Page 49 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 2 For SPEED unipolar output range 4 24mA where 4mA represents Orpm 3 For POSITION bipolar output range 0 12 24mA where 12mA represents zero position counter value 4 For POSITION unipolar O 24mA range where OmA represents zero position counter value 5 For POSITION unipolar 4 24mA output range where 4mA represents zero position counter value 6 For POSITION 4 24mA output range window mode Current Scale Current Filter 27 28 R W R W 0 10 000 5 0 9 000 000 POSITION 0 256 0 Yes 1 Yes Establishes the scale used for the current output Regardless of Current Mode setting 20mA output always represents the positive CURRENT SCALE setting If Current Mode set for SPEED the maximum entry is 10 000 RPM Valid scales are 10 to 10 000 If entering a larger Scale value gt 10 000 the MR320 will send an error signal a
92. s If communications cannot be established with a PC proceed as follows STEP 1 Use the ZAPPY Software from Micronor and check if you can communicate using this software STEP 2 Make sure you use a correct interface cable either USB or MR232 1 for RS232 communications STEP 3 If ZAPPY works but your software will not communicate then make sure you have set your serial interface to the proper baudrate start stop bit setup etc as described in Section 6 2 1 If ZAPPY does not establish communication then we may suspect the interface cable MR320 module or the computer serial interface 7 2 1 Testing The USB Interface The basic test for the USB cable or interface is to verify that the ZAPPY the PC and MR320 Controller are communicating with each other As mentioned in Section 5 10 the first installation of ZAPPY on a particular PC may requires 1 or 2 restarts as the appropriate Windows drivers are installed and the assigned COMx port becomes recognized by ZAPPY STEP 1 First connect USB cable and then start program If ZAPPY cannot establish communications then close ZAPPY and disconnect USB NOTE There are several things that must happen in sequence so that is why is may take 2 or 3 program starts initially to get ZAPPY running and communicating to the MR320 Controller e FTDI driver must load e Windows must install USB Serial Driver Windows assigns Port to USB Serial Port e ZAPPY
93. s 24 Figure 5 Making Duplex LC Optical Connection to MR320 Controller 25 Figure 7 How To Insert and Remove Wires From the WAGO Plu8 26 Figure 8 Inserting Removing the WAGO Plug From The MR320 Controller Module 26 Figure 10 Typical MR320 Series Fiber Optic System connections using Sensor with Duplex LC Pigtail 9 29 Figure 11 Typical MR320 series system using Harsh Environment ODVA LC Duplex IP LC COnnectiONnS ED usus 29 Figure 12 How to Manually Reset the Controller Module With WAGO Tool 31 Figure 15 Initial OPERATE Screen if encoder is inactive 2 35 Figure 16 OPERATE Screen displays Real time Encoder Operation 35 Figure 19 INSTRUCTIONS Screen View offers Online Instructions and Reference Information 38 Figure 20 Block Diagram of the MR320 Series Fiber Optic Encoder System 42 Figure 21 Set up Parameters for HYPERTERMINAL Program 70 Figure 22 Dirty and Clean Fiber Optic Connector Ferrule and Endface 71 Figure 23 WET Cleaning Method R
94. s most basic operating mode the ZapFREE Fiber Optic Encoder System simply replaces a conventional rotary encoder and provides same real time quadrature outputs yet offers BOTH RS422 line driver and push pull signals in a single unit If you plan to use the ZapFREE Encoder System in this fashion you may simply connect the units as described in Section 5 8 First Time Start Up no further setup ZAPPY software set up etc is required The MR320 Controller Module does not face the space and environmental limitations of conventional optical rotary encoders where all optoelectronics must be packaged into the sensor housing Consequently the module offers an extremely useful set of Auxiliary Functions and Auxiliary 1 0 that offer functionality beyond the capabilities of conventional encoders e DIVIDER function provides both A B Line Driver and A B push pull quadrature outputs QUADRATURE DIVIDER Reg 21 The programmable divider output allows the user to divide the quadrature signals produced by the encoder Direct Encoder Quadrature Outputs N may be any integer number from 2 to 16383 Value O disables this function NOTE Itis recommend that this function be disabled if not being used ANALOG outputs Both fully programmable 4 20 10V outputs Page 39 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System Two ANALOG Outputs Registers 23 2A Fully Programmable 4 20mA and 10V ou
95. shaft Installation is complete MOUNTING PANEL COUPLING OPTICAL ENCODER SYNCHRO CLAMPS Figure 2 Shafted Encoder Mounting via Thru Hole With Synchro Clamps Page 21 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System 5 3 Mounting the Hollow Shaft Rotary Encoder Applicable Model MR324 Like the MR322 MR326 the mechanical workings of the MR324 sensor is straightforward The rotor portion is coupled to a hollow shaft and the encoder body is prevented from rotating via a flexible Tether arm or Spring Clip attached to the Stator Figure 3 illustrat encoders Ca es various mounting options and hardware available for use with MR324 hollow shaft Important Considerations About Hollow Shaft Encoders e Do not alter or modify the hollow shaft assembly otherwise the accuracy of the encoder and the dependability of the bearings and gaskets will be affected e Bearings are sensitive Always handle the encoder with care when handling and mounting to the mechanism e Bearing degradation can occur if motor shaft currents are allowed to pass through the encoder bearings While the fiber optic connection provides overall electrical isolation it may be necessary to locally isolate the shaft by either use of an isolation insert or insulating the tether arm e The mechanical life of any encoder is mainly determined by the loading on the unit s bearings As either the radial or axial shaft loading increas
96. th the Data Setup Command Quadrature Divider 21 R W 1 256 Yes Sets the divide ratio for the programmatic encoder output pulses e g if a value of 8 is set each time eight quadrature input cycles occur a single quadrature output cycle will be generated RPM 22 RD 0 10000 Reads the signed RPM If the encoder is turning counter clockwise the RPM is preceded by a minus sign If the encoder is turning clockwise the RPM is reported as simply a number The reported number is the actual RPM 100 Voltage Mode Voltage Scale Voltage Filter Current Mode 23 24 25 26 R W R W R W R W 0 1 SPEED 2 POSITION 0 10000 5 0 9000000 POSITION 0 256 0 2 SPEED 3 5 POSITION 1000 32 Yes Yes Yes Yes Establishes the output mode of the voltage output SPEED mode with bipolar 12V output range 1 SPEED mode with unipolar 0 12V output range 2 POSITION mode with bipolar 12V output range Establishes the scale used for the voltage output Regardless of Voltage Mode setting 10V output always represents the positive VOLTAGE SCALE setting If Voltage Mode set for SPEED the maximum entry is 10 000 If entering a larger Scale value gt 10 000 the MR320 will send an error signal and reset the Scale value to 10 000 If Voltage Mode set for POSITION the maximum ent
97. tputs Independently programmable for representing Position or Speed Speed Current Filter Encoder RPM Output n Direction 2B Hardware or RPM Software Reset Position Counter Voltage Filter M multiplier Output n Speed Limitations Of The Controller Module The ZapFREE encoder operate at speeds well above 10 000 RPM depending Ve model and resolution of encoder using the Controller s Direct Quadrature outputs Sot However the Auxiliary Functions Divider and Programmable Analog Outputs are E processor limited and will shut off when the encoder frequency is higher than 5O kHz Auxiliary Functions can potentially be used at higher speeds with certain operational tradeoffs Contact Micronor to discuss your application and needs Summary of Auxiliary Functions integrated into the MR320 controller firmware These functions require use of ZAPPY software to set up mode scale etc AUXLIARY Function Features Current Output tracking RPM e Scalable from 10 to 10 000 RPM full scale Upto 4mA over range indication e Mode 0 4mA to 12mA to 20mA with overrange and underrange Mode 1 OmA to 20mA uni polar with overrange Mode 2 4mA to 20mA uni polar with overrange Programmable Output Low Pass Filter 2ms to 1s Saleable from 1 to 8 388 607 counts Up to 4mA over range indication Mode 3 4mA to 12mA to 20mA with over under rage Mode 4 4mA to 20mA uni polar with overrange Mode 5
98. ulation of the lt BCC gt In the above example 32 XOR 34 XOR 35 XOR 30 XOR 30 XOR 03 equals the lt BCC gt value of 30 Page 46 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System If the MR320 receives bad lt BCC gt then it will respond with a lt NACK gt character 6 3 Configuration Commands and Parameters The following three tables describe the commands recognized by the MR320 The format for the commands as they are sent to the MR320 and the format for the data strings returned from the MR320 are the same regardless of the command All that changes is the register number in the command and the data that is either written or read Each table has the following columns Title Reg Read Write Range Default Saved Description Description of the command function The register number needed in the command as indicated by rn above Indicates whether or not the register can be read and or written to R W read and write RD read only WR write only The valid range of data that can be written by a Data Setup command or is returned in the Data Return following a Data Request The factory default setting of this particular parameter Indicates whether the data is saved in EEPROM when the save command is initiated If this column is NO the data cannot be saved to the EEPROM In most cases any data that can actually be set by the user is saved A short explanati
99. y mechanical splices should not exhibit insertion losses greater than 0 2 dB Good fusion splicing techniques should produce insertion losses lt lt 0 1 dB 2 Verify that the optical link design meets optical loss budget The MR320 Series ZapFREE Rotary Encoder system has a two way loss margin of 12 5dB to cover fiber attenuation at 850nm over distance as well as losses of inline connectors and splices Important Considerations for Optical Loss Budget Analysis e Inthe Optical Loss Budget analysis you must also include the loss of the primary connections to the Sensor and Controller Module That s two interconnections typically high quality Duplex LC connectors for standard implementations e Since the fiber s attenuation is higher at 850nm versus 1300nm this is a dual wavelength system use the 850nm loss figure typically 3dB km when accounting for fiber cable losses EXAMPLE Suppose that an installation will have a total link length of 1100 meters made up of two spans 100m and 1000m have a link length of 1100 meters consisting of a 100m and 1000m segments Let s assume a worst case Duplex LC connection loss of 0 5dB and fiber attenuation of 3 5 dB km at 850nm The following table details the loss calculations to arrive at a predicted worst case loss of 10 7 dB well below the MR320 system s 12 5 dB maximum system loss margin Page 17 of 85 MICRONOR INC MR320 Series ZapFREE Fiber Optic Incremental Encoder System
100. ystem 3 6 MR328 Size 58mm MRI Compatible Sensor Functional Specification Description Specification Resolution 360 ppr Max Speed Continuous Operating Speed Mechanical 6000 rpm Electrical 6000 rpm Direct Quadrature outputs used with all Auxiliary Functions OFF 5000 rpm Direct Quadrature outputs used and all Auxiliary Functions ON Auxiliary Functions are processor controlled functions e g Divider Multiplier Counter and Analog Outputs Contact Micronor for more information about speed versus operational trade offs Optical Interface Duplex fiber optic pigtail with Duplex LC plug IMPORTANT NOTE Fiber optic pigtail length must be long enough so that the semi metallic Duplex LC plug is outside of the MRI environment Fiber Type MM 62 5 125um Graded Index 0 275 Maximum Fiber Link Length See MR320 specifications for maximum distance and optical link loss range Environmental Specifications Temp Range Humidity Ambient laboratory environment Inherently safe optical radiation Simple Apparatus 0 to 95 RH non condensing Mechanical Specifications Shaft 6mm x 5 5mm FLAT x 10mm L 0 236 in OD x 0 21 7 in FLAT x 0 393 L Max Shaft Loads Radial 60 N 13 5 Ibf Axial N 6 75 System MTBF 3 01E 06 hours 343 years Bearing Life calculated at 1 000 RPM and 5096 of Maximum Radial Axial Shaft Load Housing 2 58mm x

manual - Micronor Inc.

Contents

Download Pdf Manuals

Related Search

Related Contents