So I got this RS485 add on board to control my VFD for the spindle
And this is the manual for my VFD…
This is my first time messing with this RS485 control and I know we have several experianced guys here so hoping someone will be able to give me some pointers to make sure i dont screw this up and burn something up.
First question I have is on the RS485 board the wires are connected to A B G but when I read thought the manual for the VFD it only shows RS+ RS- for RS485 Communications. I would assume the G on the add on board is for Ground. But from A and B which is + or -??
ok I was close on the Gcode but not quite. Where I had
M6 S<s> M3
Has now been changed to
M3 S<s> G4 P7
It turns the spindle on with the M3 and to the correct RPM if I just give it M3 S15000, but it doesn’t wait for it to ramp up at all. My VFD is set to 5 seconds ramp up so the 7 gives it a little extra lol