[ Vfdmod ] An easy VFD control over MODBUS RTU

jasen wrote:

Very impresive. as can be used for ulmost every vfd.
The only thing i can suggest is to add the pktuart support for the mesa boards. in this way the vfd can be connected directly to the digital filtered uart of the mesa boards

H2B wrote:

I've successfully used this to control a Folinn BD600 over MODBUS, and it should also apply to other Folinn (Fuling) models of VFDs. Unfortunately this model requires a reverse command to be sent using a negative percentage to the relative frequency command, which is something I'll try to figure out at a later stage.

Thanks @aekhv for this lovely bit of code!

Hope this information comes in handy for anyone using a Folinn VFD!

Here's the ini file I've used on Debian Bullseye with LinuxCNC 2.9 (default release packages work perfectly fine):

Code:

[Common] MaxSpeedRPM=24000 MinSpeedRPM=6000 ;AtSpeedThreshold=0.05 [RS485] SlaveAddress=1 SerialDevice=/dev/ttyUSB1 BaudRate=9600 LoopDelay=500 ProtocolDelay=6 ;IsConnectedDelay=10 ConnectionErrorList=110 ConnectionDelay=500 [Control] Address=0x1000 RunForwardValue=0x0001 RunReverseValue=0x0002 FaultResetValue=0x0007 StopValue=0x0006 [SpindleRpmIn] FunctionCode=0x06 Address=0x3000 Multiplier=10000 Divider=24000 [SpindleRpmOut] Address=0x3001 Multiplier=30 Divider=10 [freq-running] FunctionCode=0x03 Address=0x3001 PinType=float PinName=freq-running Divider=10 [bus-voltage] FunctionCode=0x03 Address=0x3002 PinType=float PinName=bus-voltage [output-voltage] FunctionCode=0x03 Address=0x3003 PinType=float PinName=output-voltage [output-current] FunctionCode=0x03 Address=0x3004 PinType=float PinName=output-current Divider=100 [output-torque] FunctionCode=0x03 Address=0x3006 PinType=float PinName=output-torque [run-speed] FunctionCode=0x03 Address=0x3007 PinType=float PinName=run-speed [spindle-load-speed] FunctionCode=0x03 Address=0x300F PinType=float PinName=spindle-load-speed [power-on-time] FunctionCode=0x03 Address=0x301A PinType=float PinName=power-on-time [spindle-run-time] FunctionCode=0x03 Address=0x301B PinType=float PinName=spindle-run-time [fault-code] FunctionCode=0x03 Address=0x8000 PinType=float PinName=fault-code And here's the files added to the custom.hal to make it work with the interface: [code]loadusr -W vfdmod bd600.ini --debug net spindle-vel-cmd-rpm => vfdmod.spindle.rpm-in net spindle-at-speed <= vfdmod.spindle.at-speed net spindle-cw => vfdmod.control.run-forward net spindle-ccw => vfdmod.control.run-reverse

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