VFD Spindle control not working

[Julien]

You may or may not have seen that thread :

VFD Parameters (Huanyang model)

This morning I figured I would skim over the parameters out of curiosity, then got carried away and ended up making a note of every single parameter value currently set in my VFD and what it does. In others words, I RTFM. I will leave my notes here in case this could be useful for others with the same VFD model. I highlighted the ones that I think need to be considered for the Shapeoko usecase, feel free to comment if you went through the same exercize and optimized some of these params ! PD000…

You can double-check what each of your VFD settings currently is.
On my HY model, the PD002 need to be set to “1” (not 2) to enable external control, but do check your specific model’s user manual to be sure.

If manual control is ok at the VFD, if PWM voltage is properly varying from 0 to 5V depending on the commanded RPM and making its way to the VI pin of the VFD, and if your spindle is still not operating, maybe double-check if you have a VI/VR jumper on the VFD, as shown in the last picture of this post:

VFD Parameters (Huanyang model)

and while I’m here, two wiring snapshots . 220V Hot and Neutral wired to R and T (apparently, it would also work with R and S or S and T too), Earth connected to the VFD’s earth terminal Spindle’s aviation connecteur pin 1 to U, pin 2 to V, pin 3 to W, pin 4 to Earth terminal [VFD_wiring_mains] For control signals, I followed @Luke’s instructions religiously: FOR(ward) to DCM(ground) = forces forward rotation, i.e. the right direction. Shapeoko’s GND to ACM (ground) Shapeoko’s PWM to VI (v…