I have a Huanyang VFD connected to my PC with Usb to RS485 converter. Everything works fine most of the time.
During a tool change, the spindle shuts down and the brake is activated, rather aggressively. About 1 time in 3, the spindle will fail to restart. I have to shutdown linuxcnc and restart it. If I launch from a console, I see a modbus communication error cycling like it lost connection.
If, however, I put a wrench on the spindle brake to keep it from activating too fast and let the spindle slow down a bit, the error never occurs. How can I avoid this error?
My entire configuration is here in the master branch:
github.com/sliptonic/millstone
