This repository should help users to integrate the YL620 VFD using Modbus RS485 into LinuxCNC. This integration is based on ClassicLadder. In my other repository I am using VFDmod, but I would suggest stay as much as you can with standard components of LinuxCNC. I believe as well that with ClassicLadder you should be able to use other Modbus devices at the same time. It seems to be possible, to use the X1-X8 Terminals of the VFD as field Inputs. But since I don’t have a use for that, I haven’t bothered with it. Leave a pull request and I might integrate that as well.
- Set up the VFD drive to receive signals via Modbus.
- P00.01 = 3 Start/Stop command source RS485
- P03.00 = 4 for 19200Bps
- P03.01 = 1 RS485 slave address 1
- P03.02 = 2 Data transfer format 8 bit data, 1 stop bit, no parity
- P07.08 = 5 Frequency source selection RS 485
- Connect the VFD with your USB Rs485 adapter.
- Download vdf.hal vfd.clp and vfd.xml to your linuxcnc/config/NAME folder. Replace NAME with the name of your machine.
- Add this to your machine ini file at the end
loadrt classicladder_rt numS32out=100
addf classicladder.0.refresh servo-thread
loadusr classicladder --modmaster vfd.clp
net spindle-on classicladder.0.in-00 spindle.0.on
net spindle-brake classicladder.0.in-01 spindle.0.brake
net spindle-forward classicladder.0.in-02 spindle.0.forward
net spindle-reverse classicladder.0.in-03 spindle.0.reverse
net spindle-cmd-rpm <= spindle.0.speed-out
net spindle-cmd-rpm-abs <= spindle.0.speed-out-abs
net spindle-cmd-rps <= spindle.0.speed-out-rps
net spindle-cmd-rps-abs <= spindle.0.speed-out-rps-abs classicladder.0.floatin-00
- Set up classic ladder
