Hello all of you. Today I would like to continue to guide you to use Labview to control Delta VFD-M inverters via Modbus RTU RS485 communication.
We need to prepare a USB to RS485 converter cable. Connection diagram from PC to inverter as shown below
Computer & VFD-M “Wiring Diagram”
DELTA VFD-M Comunication Configuration
In addition to the basic parameters set by the motor (Frequency, Current, Voltage). We set the communication parameters as follows
+ P00 = 03 (Frequency Set by RS485)
+ P01 = 04 ( Control by RS485)
+ P88 = 01 (Slave Address)
+ P89 = 01 (Baudrate 9600bps)
+ P92 = 04 ( Mode 8/1/Even)
+ P157 = 01 (Modbus-RTU Selection)
Register Control Address
>>> Motor Control Address = 2000 (hex) = 8192 (dec)
- Set Word 8192 = 18 >>> Motor Forward
= 34 >>> Motor Reverse
= 1 >>> Stop
>>> Frequency Set Address = 2001 (hex) = 8193 (dec)
Data Monitoring Address
>>> Output Frequency Address = 2103 (hex) = 8451 (dec)
LabView Programming
+ Control Panel
+ Program
Project Video Tutorial
======
>>> Download DELTA VFD-M Manual PDF (Password Extract: plc247.com)
If you need any support in the process of using Labview to control the DELTA VFD-M inverter, please comment below the article. Please share the article if you find it useful.
Best Regards!
