Controlling PowerFlex 4-Class Drives on RS
Contents
1. e Drive Node 1 Drive Node 247 1761 NET AIC o TF Terminal 16 if PowerFlex 4 N y Terminal 19 if PowerFlex 40 A ade i Pe oP RS DOODO e ee e Oo o o aa aoa O Install 120 ohm i E nen cA termination resistor if last drive NOTE You may substitute a PowerFlex 4 class drive for a PowerFlex 7 class using a 20 COMM H RS 485 HVAC adapter Wiring will be identical to the 1761 NET AIC diagram above Only jumper terminals TERM and A on the adapters at the end of the RS 485 network and only jumper terminals SHIELD and GND at a single point one device on the network Description MicroLogix 1500 LRP Series C Revision C Firmware Version 9 0 Controller PowerFlex 4 Class Drive Frn 1 xxx and greater Belden 3105A or equivalent cable 1761 CBL PM02 MicroLogix Programming Cable If this cable is not available you may use a 1761 CB2 AC00 cable instead Channel 1 9 pin Female Serial Connector on MicroLogix 1500 LRP Controller left side AK U0 RJ45 TB2P Terminal Block Connector 1761 NET AIC MicroLogix AlC Advanced Interface Converter Frn 1 xxx You will need to supply converter with2. Error Error Code Hex 0 Slave Node Address dec Select node address of drive No errors No Field Action Recommended Setting 1 Channel Select communication port 1 2 Modbus Command Select message function 03 Read Holding Registers 4xxxx Data Table Address Select an unused data file N11 0 user defined O Size in Elements Element size INT 1 Message Timeout Select control timeout in seconds 2 6 MB Data Address 1 65536 Select data register in drive 8449 drive defined z 1 6 Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers Step 4 Entering the Speed Feedback Logic Task Description A Double click the LAD 2 MAIN program folder and insert a ladder rung B Double click on the rung and then copy and paste the following logic into the address bar MSG MG10 1 3 LOCAL 1 1 N11 1 8452 1 2 128 SLOT 0 c In a separate rung double click on the rung and then copy and paste the following logic into the address bar BST XIC MG10 1 DN NXB XIC MG10 1 ER BND OTU MG10 1 EN D Click on Setup Screen to launch the message configuration window E Configure the General tab by entering the information shown in the table below MSG Read Write Message EN A MSG File MG10 1 DN B Setup Screen ER MG10 1 MG10 1 J K gt C DN EN MG
3. Task Description A Double click the LAD 2 MAIN program folder and insert a ladder rung B Double click on the rung and then copy and paste the following logic into the address bar MSG MG10 3 6 LOCAL 1 1 N11 3 8194 1 2 0 SLOT 0 c In a separate rung double click on the rung and then copy and paste the following logic into the address bar BST XIC MG10 3 DN NXB XIC MG10 3 ER BND OTU MG10 3 EN D Click on Setup Screen to launch the message configuration window E Configure the General tab by entering the information shown in the table below MSG Read Write Message EN A MSG File MG10 3 DN B Setup Screen ER MG10 3 MG10 3 U C DN EN MG10 3 ER E MSG MG10 3 1 Elements BAX This Controller Control Bits 1 Channel Ignore if timed out TO o 2 Modbus Command 4 Data Table Address Awaiting Execution EW 0 4 Size in Elements Ener CFE a Target Device Message done DN o 8 Message Timeout Message Transmitting ST 0 MB Data Address 1 65536 Message Enabled EN 0 Slave Node Address dec Error Error Code Hex 0 Error Description No errors No Field Action Recommended Setting 1 Channel Select communication port 1 2 Modbus Command Select message function 06 Write Single Registers 4xxxx Data Table Address Select an unused data file N11 3 user defined 6 Size in Elements Element size INT 1 5 Message Timeout Select control timeout in seconds 2 Q MB Data Address 1 65536 Select
4. 1 Set Parameters P036 Start Source to 5 Comm Port P038 Speed Reference to 5 Comm Port A103 Comm Data Rate to 4 19 2K A104 Comm Node Addr to 1 or a unique node address A107 Comm Format to 0 RTU 8 N 1 To Configure You may use the LCD HIM DriveExplorer software version 3 01 or greater or DriveExecutive software version 2 01 or greater MicroLogix AIC Advanced Interface Converter 1761 NET AIC 1 Set rotary switch to AUTO position MicroLogix 1500 LRP Series C Revision C Firmware Version 9 0 Controller DNs 5 Run RSLogix 500 programming software Create a project or open an existing project In the left hand project window double click the Channel Configuration folder Click the Channel 1 tab and set e Driver to Modbus RTU Master Baud to 19 2K Parity to NONE Control Line to No Handshaking InterChar Timeout x1 ms to 0 Pre Transmit Delay x1 ms to 0 Leave all other settings at default To Configure You may only use RSLogix 500 software version 6 10 00 or greater To verify software revision level click Help then About RSLogix 500 from the top menu bar Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers Step 2 Connecting the Hardware _ 8 ODO0O0O Tac OCI Ke 000000000 oooo Allen Bradley
5. external 24 VDC power RS 485 Network Wiring Diagram 0800 6 0 OF Second 1761 CBL PM02 MicroLogix Programming Cable for uploading downloading programs to controller Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers Step 3 Entering the Logic Status Logic Task Description Double click the LAD 2 MAIN program folder and insert a ladder rung 5 Double click on the rung and then copy and paste the following logic into the address bar MSG MG10 0 3 LOCAL 1 1 N11 0 8449 1 2 132 SLOT 0 In a separate rung double click on the rung and then copy and paste the following logic into the address bar BST XIC MG10 0 DN NXB XIC MG10 0 ER BND OTU MG10 0 EN Click on Setup Screen to launch the message configuration window Configure the General tab by entering the information shown in the table below MSG Read Write Message EN MSG File MG10 0 DN B Setup Screen ER MG10 0 MG10 0 J W gt DN EN MG10 0 D ER E MSG MG10 0 1 Elements max This Controller OOO Target Device Error Description Q channe Modbus Command Data Table Address Size in Elements Message Timeout MB Data Address 1 65536 9449 Slave Node Address dec Control Bits Ignore if timed out TO o Awaiting Execution EW oJ Error ER o Message done DN o Message Transmitting ST o Message Enabled EN
6. 10 1 D ER E E MSG MG10 1 1 Elements BAX This Controller Control Bits 1 Channel Ignore if timed out TO o 2 Modbus Command Data Table Address Awaiting Execution EW 0 O Size in Elements ee T Target Device Message done DN o 8 Message Timeout Message Transmitting ST o MB Data Address 1 65536 Message Enabled EN Slave Node Address dec Error Error Code Hex 0 Error Description No errors No Field Action Recommended Setting 1 Channel Select communication port 1 2 Modbus Command Select message function 03 Read Holding Registers 4xxxx Data Table Address Select an unused data file N11 1 user defined 6 Size in Elements Element size INT 1 Message Timeout Select control timeout in seconds 2 Q MB Data Address 1 65536 Select data register in drive 8452 drive defined 7 Slave Node Address dec Select node address of drive 1 Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers Step 5 Entering the Logic Command Logic 7 Task Description A Double click the LAD 2 MAIN program folder and insert a ladder rung B Double click on the rung and then copy and paste the following logic into the address bar MSG MG10 2 6 LOCAL 1 1 N11 2 8193 1 2 128 SLOT 0 c In a separate rung double click on the rung and then copy and paste the following l
7. Related Products and Documentation Hardware That You Will Need Application Solution Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers This document will guide you through the basic steps needed to install start up and program PowerFlex 4 class drives for RS 485 Modbus RTU communications The information provided does not replace the user manual and is intended for qualified personnel only All documentation can be found on the Internet at www theautomationbookstore com using either the public or private link Catalog Number Document Title Publication Number 22A Series PowerFlex 4 Adjustable Frequency AC Drive 22A UM001C EN E User Manual 22B Series PowerFlex 40 Adjustable Frequency AC Drive 22B UM001A EN E User Manual 1761 NET AIC MicroLogix AIC Advanced Interface Converter 1761 6 4 User Manual 1764 L Series MicroLogix 1500 Programmable Logic Controllers 1764 UM001B EN P User Manual D The letter represents document revision and is subject to change Many of the devices listed below may be or should be supplied with your system however these devices have been listed to help in the understanding of the overall system application You may not need all of the hardware listed For more information regarding firmware and revision levels refer to the table in Step 2 entitled Connecting the Hardware Product Name Catalog Number Description Pow
8. aster devices e g ProSoft MVIS6 MCM ControlLogix Modbus scanner and 8193 for others e g MicroLogix and PanelViews Important MicroLogix Controller Information Even though you may configure Channel 0 and Channel 1 for Modbus RTU Master functionality it is recommended that you dedicate Channel 0 for RSLogix 500 software programming and ControlFLASH firmware upgrading based on customer statistics Channel 1 will not e allow you to flash upgrade controller firmware e supply power to external devices i e 1761 NET AIC While system setup is entirely up to the customer using an external 24 VDC power supply isolates the controller from the 1761 NET AIC converter for better noise immunity Therefore in this application example Channel 1 has been dedicated as the Modbus RTU Master for drive control Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers 3 Important RS 485 Wiring Information Standard RS 485 wiring practices apply Termination resistors need to be installed at each end of the network cable to eliminate EMI noise induction and to strengthen data signal Also RS 485 repeaters may need to be used for long cable runs or if greater than 32 nodes are needed on the network Step 1 Configuring the Hardware This section will guide you through configuring a PowerFlex 4 class drive 1761 NET AIC converter and MicroLogix 1500 LRP controller Device PowerFlex 4 and 40 Drives Steps
9. cal Allen Bradley distributor or contact Rockwell Automation in one of the following ways Phone United States Canada e 1 262 512 8176 7 AM 6 PM CST e 1 440 646 5800 24 hour support Outside United States Canada You can access the phone number for your country via the Internet 1 Go to http Awww ab com 2 Click on Support http support rockwellautomation com 3 Under Contact Customer Support click on Phone Support Internet D Go to http www ab com support abdrives Email oD support drives ra rockwell com This document was written for Rockwell Automation by David M Wisniewski Sr Technical Support Engineer All rights reserved
10. data register in drive 8194 drive defined 7 Slave Node Address dec Select node address of drive 1 Understanding the I O Other Supported Controllers Rockwell Automation Support Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers 9 The following table identifies drive I O In RSLogix 500 software you will need to know the data table address es and logic bit definiton s in order to effectively control your drive They are Data Table Address Description N11 0 Logic Status Word for bit definitons please refer to Appendix C 4 of the drive s user manual N11 1 Speed Feedback for bit definitons please refer to Appendix C 4 of the drive s user manual N11 2 Logic Command Word for bit definitons please refer to Appendix C 3 of the drive s user manual N11 3 Speed Reference Word for bit definitons please refer to Appendix C 3 of the drive s user manual Allen Bradley offers additional MicroLogix controllers with Modbus RTU Master capabilities They are Controller Type Catalog Number MicroLogix 1200 Series C Revision C Firmware Version 8 0 1762 L24 L40 MicroLogix 1500 LSP Series C Revision C Firmware Version 9 0 1764 LSP Before you contact Rockwell Automation for technical assistance we suggest that you please review the troubleshooting information contained in the supporting product publications If the problem persists call your lo
11. erFlex 4 Class Drive 22A or 22B Device used to control the speed of a motor MicroLogix AIC Advanced 1761 NET AIC Device used to interface a MicroLogix Interface Converter controller with an RS 485 network MicroLogix 1500 LRP Series C 1764 LRP Device also known as a Programmable Revision C Firmware Version 9 0 Logic Controller Controller MicroLogix Programming Cable 1761 CBL PM02 Device used to program a MicroLogix controller Belden 9841 Cable None user supplied Device used to connect a 1761 NET AIC converter to a PowerFlex 4 Class drive tis recommended that you use this controller type since it offers an additional programming port 2 Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers What You Need To Do e Step 1 Configure the hardware e Step 2 Connect the hardware e Step 3 Enter the Logic Status logic e Step 4 Enter the Speed Feedback logic e Step 5 Enter the Logic Command logic e Step 6 Enter the Speed Reference logic Supported Modbus Function Codes Modbus Function Code Command Description 03 Read Holding Registers 06 Preset Write Single Registers Modbus devices can either be 0 based registers are numbered starting at 0 or 1 based registers are numbered starting at 1 Since MicroLogix controllers use 1 base technology you will need to offset register addresses by 1 For example the Logic Command word may be register address 8192 for some m
12. ogic into the address bar BST XIC MG10 2 DN NXB XIC MG10 2 ER BND OTU MG10 2 EN D Click on Setup Screen to launch the message configuration window E Configure the General tab by entering the information shown in the table below MSG Read Write Message EN MSG File MG10 2 DN A B me i Setup Screen RA MG10 2 MG10 2 C E E MSG MG10 2 1 Elements BAX This Controller Control Bits 1 Channel Ignore if timed out TO o Modbus Command 7 Data Table Address Awaiting Execution EW 0 O Size in Elements Eror Enr Target Device Message done DN o 8 Message Timeout Message Transmitting ST 0 MB Data Address 1 65536 Message Enabled EN Q Slave Node Address dec Error Error Code Hex 0 Error Description No errors No Field Action Recommended Setting 1 Channel Select communication port 1 2 Modbus Command Select message function 06 Write Single Registers 4xxxx Data Table Address Select an unused data file N11 2 user defined 6 Size in Elements Element size INT 1 Message Timeout Select control timeout in seconds 2 6 MB Data Address 1 65536 Select data register in drive 8193 drive defined 7 Slave Node Address dec Select node address of drive 1 8 Controlling PowerFlex 4 Class Drives on RS 485 Modbus RTU using MicroLogix Controllers Step 6 Entering the Speed Reference Logic
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