Hello guys,
Trying to manage an issue here. I have a g540 - mach3 - HY 1.5kw VFD setup which I hoped of controlling with mach3.
So I've searched and found the homann designs wiring diagram which is awesome and i've wired everything according. I've added a 48v relay to switch the spindle on and off which works well through mach3. But no PWM at all. It stays near the max 24000 rpm of the spindle.
So i've tried to power off the VFD to check voltages between pins 7 and 9 on gecko (which I assume gotta be 10v or near) and between 7 and 8 (at 50% should be 5v) but I have nothing. Switching the spindle on in mach3, the relay clicks aaand I don't have any reading between those pins at all, or some tiny mv. Well...
I've powered the VFD on and measured those pins again. Wierdly enough between 7and 9 I have 7.8v, between 7 and 8 I have 9.8v and between 8 and 9 I have 2v. None of those voltages changes when I change PWM value in the mach3. I thought it's the g540's job to give the 10v signal to the VFD... Strange!
Scratching my head here, don't know what to do really. I have one 48v PSU which powers the g540 and that's it.
My settings in the mach3 : output1 on pin pin 17, spindle on pin 14, pulley 1, 24000, 1.
Don't know what to do really here guys, please help!