Modbus Module User Guide - Leroy
Contents
1. 03250 B Network master RS 485 Remote Keypad RS 485 Soft starter RS 485 7 3 RS 485 Data Cable Connection Daisy chain connection is recommended This is achieved by parallel connections of the data cable at the actual device terminals 7 4 Remote Keypad RS 485 Network Connection Specifications Input impedance 12kQ Common mode voltage range 7Vto 12V Input sensitivity 200 mV Minimum differential output voltage 1 5 V with max loading of 54 Q Modbus Module User Guide 11 Issue D www leroy somer com 8 Specifications Enclosure DIMENSIONS ua asam baa kuah uuu aia 40 mm W x 166 mm H x 90 mm D Weight Protection Mounting Spring action plastic mounting clips x 2 Connections Sofbst ttel 2 3 9 c ORE NO EEG tan oi dee ad ipu ag pe decorate eit ete uq ala ushanas 6 way pin assembly Network 5 way male and unpluggable female connector supplied Maximum cable size HH AASA 2 5 mm2 Settings Protocol hen rata en vd sun tina AAA tuse eve de vau aga dein de tuae eut Modbus RTU AP ASCII OGL ESS FANG E chicas TAP EA A LEN A RE TEE dated cunts tty IM 0 to 31 Data rate bps 4800 9600 19200 38400 icc AEE A arc MD cmd None Odd Even 10 bit IIo Ee EE E E E A E A E E TT None off 10 s 60 s 100 s Certification E E IEC 60947 4 2 eM LR A PNE IEC 6092. Network communication between module and network Internal fault x where x is the fault code detailed in the table below Ground fault Parameter out of Range Input B trip L1 phase loss L2 phase loss L3 phase loss L1 T1 shorted L2 T2 shorted L3 T3 shorted Motor 2 overload thermal model Time overcurrent Bypass overload Battery clock Thermistor circuit RTD PT100 A RTD PT100 B RTD PT100 C RTD PT100 D RTD PT100 E RTD PT100 F RTD PT100 G RTD PT100 X Circt Analog input trip Overpower Underpower No trip 1 Available with Digistart D3 only if the appropriate option card is fitted 2 For Digistart D3 time overcurrent protection is only available on internally bypassed models Modbus Module User Guide Issue D www leroy somer com 6 2 1 Internal Fault x The table below details the internal fault code associated with trip code 17 Table 6 3 Internal fault X 77 to 79 Firing Fail Px 80 to 82 VZC Fail Px Low Control Volts 84 to 98 Internal fault X Contact your local supplier with the fault code X 6 3 Cyclic redundancy check CRC The CRC is a 16bit cyclic redundancy check using a polynomial with a value A001 The 16bit CRC is appended to the message and transmitted LSB first The CRC is calculated on all the bytes in the frame For further Modbus information including the
3. 08649 A 08650 A Digistart D2 For the Modbus Module to accept serial commands a link must be fitted across terminals CSL DI2 on the soft starter Digistart D3 Input links are required across the stop and reset inputs if the soft starter is being operated in Remote mode In Local mode links are not required If the Starter Disable function is not required change the setting of Pr 3A or connect a link across DIA 24V Digistart D3 Control via the serial communication network is always enabled in local control mode and can be enabled or disabled in remote control mode Pr 3O Comms in Remote See the soft starter user manual for parameter details Modbus Module User Guide 5 Issue D www leroy somer com 4 3 LEDs The Network Status LED 1 indicates the state of the communications link between the module and the network LED operation is as follows Figure 4 3 Feedback LEDs No connection or soft starter not powered up Communication active Flashing Communication inactive 03193 C If communication is inactive the soft starter may trip if the Communications Timeout function has been set on the module When communication is restored the soft starter will require a Reset 5 Master Configuration For standard Modbus 11 bit transmission the Master must be configured for 2 stop bits with No Parity and 1 stop bit for odd or even parity For 10 bit transmission the Master must be configured for 1 stop b
4. the module to the starter Figure 3 1 Attach the module to the starter Figure 3 2 Remove the module from the starter Remove the module using the following procedure Take the module off line Remove control power and mains supply from the soft starter Disconnect all external wiring from the module Fully pull out the top and bottom retaining clips on the module Pull the module away from the soft starter 03550 B 4 Modbus Module User Guide www leroy somer com Issue D 4 Modbus Module Connection and Configuration 4 1 Adjustment Network communication parameters must be set on the Modbus Module DIP switch settings take effect on the power up of the Modbus Module via the soft starter Baud rate an or 8 Timeout seconds DIP switch Example Address 24 Figure 4 1 Adjustment switches 00086 A z i o o e o s a B E ii z o o o Hs Os e z 3 lo z a lo oH sb H E E H 4 2 Connection Figure 4 2 Modbus Module connections B3 B2 B1 Digistart D2 Digistart D3 Remote mode CSL DI2 Stop input DI2 24V Stop input DI3 24V Reset input Modbus Module RS 485 serial port D Modbus Module RS 485 serial port RS 485 connection onto Modbus network RS 485 connection onto Modbus network
5. 4 Quick stop coast to stop 5 Forced communication trip 6 Start using Parameter Set 1 7 Start using Parameter Set 2 3 to 7 Reserved 40003 Starter state 0to 3 1 Ready 2 Starting 3 Running 4 Stopping including braking 5 Restart delay including temperature check 6 Tripped 7 Programming mode 8 Jog forward i Jog reverse Positive phase sequence only valid if bit 6 1 2 S UY EC Uninitialised EC Y Initialised E ud Remote Operator communications are OK p ud Remote Operator Communications device fault 40007 Product information Single or multiple read or write 40600 Version 01t05 Binary protocol version number 6108 Parameter list version number 9 to 15 Product type code Hoi Reewd _ 0000 Mj eo LL M parameter number 0 to 7 0 parameters not changed 1 to 255 index number of the last parameter changed 8 to 15 Total number of parameters available in the starter 40602 141015 40604 Starter state 0to4 0 Reserved 1 Ready 2 Starting 3 Running 4 Stopping 5 Not ready restart delay restart temperature check run simulation input A DI4 24V not shorted 6 Tripped 7 Programming mode 8 Jog forward 9 Jog re reverse 5 Jicwmo OO Unintialised EE Initialised Modbus Module User Guide 7 Issue D www leroy somer com Register Description Bits Details 7 0 Local control MN 1 Remote control 0 Parameter s have changed since
6. 47 4 2 ROHS conr DR PR ROT RIDERE ESTIS A RE REIHE DO HEP Compliant with EU Directive 2002 95 EC 12 Modbus Module User Guide www leroy somer com Issue D Modbus Module User Guide Issue D www leroy somer com 13 14 www leroy somer com Modbus Module User Guide Issue D Modbus Module User Guide Issue D www leroy somer com 15 LEROY SOMER MOTEURS LEROY SOMER 16015 ANGOUL ME CEDEX FRANCE 338 567 258 RCS ANGOUL ME Simplified Joint Stock Company with capital of 65 800 512 www leroy somer com
7. CRC calculation refer to the Modbus protocol specifications available at http www modbus org specs php 6 4 Examples Command Start Starter Address Function Code Register Address Data cc Ere qp zi ues 08 32 20002 GACT CROZ ou 2 09 40002 GRO CRC2 Starter status Running Starter Address Function Code Register Address Data _ CRC In 40003 CRC1 CRC2 Xxxx0011 CRC1 CRC2 Trip code Motor overload Starter Address Function Code Register Address Data CRC__ 40004 CRC1 CRC2 00000010 CRC1 CRC2 Download parameter from starter Digistart D3 Read parameter 3 Pr 1C Locked Rotor Time 10 seconds Starter Address Function Code Register Address Data CRC 40011 CRC1 CRC2 CRC1 CRC2 Upload parameter to starter Digistart D3 Write parameter 12 Pr 2H Stop Mode set 2 Adaptive Control Starter Address Function Code Register Address Data CRC in 8800 CRI ORO put e 6 40019 CRC1 CRC2 Upload multiple parameters to starter Digistart D3 Write Parameters 6 7 8 Prs 2B Current Limit 2C Initial Current 2D Start Ramp Time Set to values of 350 300 15 seconds respectively Starter Address Function Code Register Address Data CCRC 40014 3 350 300 15 CRC1 CRC2 40014 3 350 300 15 CRC1 CRC2 This function can only be used to upload consecutive parameters The Register Address data indicates the number of parameters to be uploaded and the regi
8. LEROY SOMER 4376 en 2013 08 d Hl LEROY SOMER LEROY SOMEN EX G Dos o A ROT RTU ON Protocol Example Address 24 16 0 8 Address V HOLIMS did No 9 G vez Ll 0 0 0 0 lt 2 8 a ON Hu cH El ON um p 2 F 2tHU LE d O m ul Z Baud Rate e Z e 9 a r O m m o Z o z Parity H H i le o iS z z E ko mi n Timeout seconds 8 HOLIMS did No 9 Sr Z RE Hen HE o 9 m o z MODBUS MODULE Communications module User Guide General Information The manufacturer accepts no liability for any consequences resulting from inappropriate negligent or incorrect installation or adjustment of the optional parameters of the equipment or from mismatching the starter with the motor The contents of this guide are believed to be correct at the time of printing In the interests of commitment to a policy of continuous development and improvement the manufacturer reserves the right to change the specification of the product or its performance or the content of the guide without notice All rights reserved No parts of this guide may be reproduced or transmitted in any form or by any means electrical or mechanic
9. al including photocopying recording or by an information storage or retrieval system without permission in writing from the publisher Copyright August 2013 LEROY SOMER Issue D Contents 1 Introd ction uu u ii bi 4 2 Important User Information 4 3 I stallatiou uu da 3 1 Installation Procedure 3 2 Physical installation a 4 Modbus Module Connection and Configuration 4 1 Adjustment 4 2 Connection 4 3 EDS i Nese frets cente eee creas SL LI th OA GER eed ad ars mau DAE DA tiene 5 Master Configuration cision cs site LL iia 6 6 Modb S F ceti ngSu u u 6 6 1 Modbus Regi fer u E M MEN 7 6 2 Trip Codes HERD uc TIME EM 9 6 3 Cyclic redundancy check CRC 10 6 4 Examples eene 10 6 5 Modbus Error Codes wel 7 Modbus Control via Remote Keypad 11 7 1 Grounding and Shielding weld 7 2 Termination Resistors n r 11 7 3 RS 485 Data Cable Connection ccccccsssceceesceeeeeeeeeesaceeseeeecseaeecesaeeessuacacecaneesesaases
10. is allocated to register 40XXX where XXX 008 plus total number of available parameters in the product 5 Reading register 40603 Changed parameter value will reset registers 40602 Changed parameter number and 40604 Parameters have changed Always read registers 40602 and 40604 before reading register 40603 Bits 10 to 15 of register 40604 report the soft starter s trip or warning code If the value of bits O to 4 is 6 the soft starter has tripped If bit 5 1 a warning has activated and the starter is continuing to operate 7 Powerscale functions as follows 0 multiply Power by 10 to get W 1 multiply Power by 100 to get W 2 Power is represented in kW 3 multiply Power by 10 to get kW If Pr 3A Input A Function for Digistart D3 is set to motor set select this will cause a conflict with motor set selection via serial communications 8 Modbus Module User Guide www leroy somer com Issue D 6 2 Trip Codes Table 6 2 Trip messages Description Excess start time Digistart D2 Digistart D3 Motor overload thermal model Motor thermistor Current imbalance Frequency Mains supply Phase sequence Instantaneous overcurrent Power loss Power circuit Heatsink overtemperature Motor Connection Tx Input trip FLC too high FLC out of range Unsupported option function not available in inside delta Starter communication between module and soft starter
11. it In all cases the Master baud rate and slave address must match those set on the Modbus Module DIP switches The data polling interval must be long enough for the module to respond Short polling intervals may cause inconsistent or incorrect behaviour particularly when reading multiple registers The recommended minimum polling interval is 300 ms 6 Modbus Functions The Modbus Module supports the following Modbus functions e 03 Read multiple registers e 06 Write single register e 16 Write multiple registers Modbus broadcast functions are not supported Digistart D2 soft starters including Remote Keypad Read multiple registers 40003 to 40008 e Write single register 40002 Digistart D3 soft starters Read multiple registers starting from 40003 up to a maximum of 119 register blocks e Single write register 40002 or multiple write registers 40009 to 40599 A multiple read across register boundary 40008 40009 will result in a Modbus Error code 05 at the Master 6 Modbus Module User Guide www leroy somer com Issue D 6 1 Modbus Register Some soft starters do not support some functions Registers 40600 and above are not compatible with Digistart D2 Series soft starters For Digistart D2 use registers 40002 to 40008 Table 6 1 Register addresses Register Descripion U Bits Details aaae 40002 Command 0 to 2 To send a command to the starter write the required value single write 1 Start 2 Stop 3 Reset
12. last parameter read ET 1 No parameters have changed RESI 0 Negative phase sequence 1 Positive phase sequence 40605 Current 0 to 13 Average rms current across all three phases 14 to 15 Heserved 10 to 15 Heserved 40607 Motor temperature 0 to 7 Motor 1 thermal model 8 to 15 Motor 2 thermal model 40608 Power Oto 11 Power 12 to 13 Power scale 14 to 15 Reserved foe al Power factor 0 to 7 100 power factor of 1 8 to 15 Reserved E Voltage 0 to 13 Average rms voltage across all three phases 14 to 15 Reserved 40611 Current 0 to 13 Phase 1 current rms 14 to 15 Reserved 40612 Current 0 to 13 Phase 2 current rms 40613 Current 0 to 13 Phase 3 current rms PE gt c E 40617 Parameter list version to 7 ee list minor revision 8 to 15 Parameter list major version Digital Input state For all inputs 0 open 1 closed shorted 0 Start 1 Stop 2 Reset 3 Input A Input B 5 Input C if fitted 6 Input D if fitted 7 to 15 Reserved 40619 to Reserved Reserved 40631 1 Ensure that the programmable input is not set to Motor Set Select before using this function 2 For models D3 1x 0053 B and smaller this value will be 10 times greater than the value displayed on the keypad 3 Product type code 4 Digistart D2 8 Digistart D3 See the relevant soft starter literature for a complete parameter list The first product parameter is always allocated to register 40009 The last product parameter
13. seaeaeesaaeeeeaeeesseaeeeeseneeesenanesseaeeeensaees 11 7 4 Remote Keypad RS 485 Network Connection Specifications l a 11 8 Kl Mei AE AR A 12 Modbus Module User Guide 3 Issue D www leroy somer com 1 Introduction The Modbus Module can be used with Digistart D2 and Digistart D3 soft starters to allow the starter to be connected to a serial communications network using the Modbus RTU or AP ASCII protocols 2 Important User Information Observe all necessary safety precautions when controlling the soft starter remotely Alert personnel that machinery may start without warning It is the installer s responsibility to follow all instructions in this manual and to follow correct electrical practice Use all internationally recognised standard practice for RS 485 communications when installing and using this equipment 3 Installation A Remove mains and control voltage from the soft starter before attaching or removing accessories Failure to do so may damage the equipment 3 1 Installation Procedure 1 Remove control power and mains supply from the soft starter 2 Attach the module to the soft starter as illustrated 3 Apply control power to the soft starter 3 2 Physical installation Fully pull out the top and bottom retaining clips on the module 2 Line up the module with the comms port slot 3 Push in the top and bottom retaining clips to secure
14. ster address of the first parameter Parameter information can only be uploaded downloaded from Digistart D3 starters 10 Modbus Module User Guide www leroy somer com Issue D 6 5 Modbus Error Codes Table 6 4 Error codes Code Description LL Example _ 7 06 Invalid command code eg writing 6 into 40003 08 lllegalparameterwrite Invalid parameter number read only or hidden parameter 09 Unsupported command Sending a serial command to Digistart D3 with Pr 30 Disable Control in RMT Some of the above codes are different from those defined in the Modbus Application Protocol Specification available on www modbus org 7 Modbus Control via Remote Keypad The Modbus Module can be used to connect a Remote Keypad to the soft starter enabling control via an RS 485 serial communications network See the Remote Keypad instructions for details 7 1 Grounding and Shielding Twisted pair data cable with ground shield is recommended The cable shield should be connected to the GND device terminal at both ends and one point of the site protective ground 7 2 Termination Resistors In long cable runs prone to excessive noise interference termination resistors should be installed between the data lines at both ends of the RS 485 cable This resistance should match the cable impedance typically 120 Q Do not use wire wound resistors Figure 7 1 Installation with termination resistors
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