Hello friends!
Continuing the series of instructions to control the Inovance MD200 inverter by Modbus RTU protocol, today plc247.com will guide you to use the MicroLogix 1400 PLC to control it.
MicroLogix 1400 PLC has a built-in RS485 port, you can use the 1763-NC01 Expansion Module for easy wiring or direct connection is no problem.
MicroLogix 1400 & Inovance MD200 “Wiring Diagram”
+ RS485 Communication connection diagram between MicroLogix 1400 PLC and Inovance MD200
Inovance MD200 Inverter Parameters Setting
We need to set the following communication parameters to be able to control Inovance MD200 using Modbus RTU communication protocol
Inovance Inverter Registers Address
Note: PLC MicroLogix Holding Registers Address =
“VFD Address (Dec) + 1“
+ VFD Control Address = 2000 (hex) = 8192 (dec) + 1 = 8193 (dec)
- Set Word 8193 = 1 >>> Forward Run
- Set Word 8193 = 2 >>> Reverse Run
- Set Word 8193 = 6 >>> Stop
+ Set Frequency Address = 1000 (hex) = 4096 (dec) + 1 = 4097 (dec)
>>> Frequency Reference = (0 to 10000 dec) ~ (0 to VFD Max Frequency)
- Output Frequency Address = 1001 (hex) = 4097 (dec) + 1 = 4098 (dec)
- Output Voltage Address = 1003 (hex) = 4099 (dec) + 1 = 4100 (dec)
- Output Current Address = 1004 (hex) = 4100 (dec) + 1 = 4101 (dec)
MicroLogix 1400 Modbus Configuration
PLC MicroLogix Modbus Example
+ Communication Distribution
+ VFD Control Command
+ Frequency Setting Command
+ Data Monitoring
Video Tutorial
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References
+ PLC MicroLogix 1400 Software Download
+ Inovance MD200 Manual PDF Download
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Very nice
thanks sir