Hello all of you. Today plc247.com will continue the series of instructions for controlling INVT-Goodrive 20 inverters using Modbus-RTU RS485 communication method.
And the PLC I choose today is the Omron CP1H PLC + CP1W CIF12 Module (or CP1W CIF11 is fine)
PLC Omron & INVT GD20 “Wiring Diagram”
If communicating with many slaves, or the communication distance is long, we need to add a 120Ω terminal resistor
INVT Goodrive 20 Modbus-RTU Configuration
In addition to the basic parameters of the inverter installed according to the motor, we need to configure additional communication parameters as follows:
- P00.01 = 2 (Motor Control via RS485 Port)
- P00.06 = 8 (Frequency Control via RS485 Port)
- P00.09 = 0
- P14.00 = 1 (Address No.1)
- P14.01 = 3 (9600bps)
- P14.02 = 1 (ModbusRTU 8/E/1)
- P14.03 = 5
- P14.04 = 0
Register for Control Motor
>>> Control Motor Address = 2000 (hex)
- Set 2000(Hex) = 1 >>> Run Forward
- Set 2000(Hex) = 2 >>> Run Reverse
- Set 2000(Hex) = 5 >>> Stop
>>> Setting Frequency Address = 2001 (hex)
Register for Data Monitoring
>>> Output Frequency = 3000 (hex)
>>> Output Voltage = 3003 (hex)
>>> Output Current = 3004 (hex)
CP1H Communication Setting
We need to configure the communication parameters of the PLC to be the same as the INVT GD20
PLC Omron Programming
+ Reset Data when PLC Start
+ Transmission Distribution
+ Frequency Write Command
+ Motor Control Run Command
+ Read Data Response
+ Data Monitoring
Detailed Instruction Video
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Documention Requirements
INVT Goodrive 20 Manual PDF (Password: plc247.com)
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Thanks and best regards!
