Centroid Community CNC Support Forum

Chaz wrote: ↑Mon Sep 16, 2019 3:03 pm Ok, based on a pic of the setup, I have DriveOK, input 5, NC. I need to see how this is wired in, if at all. I assume it must but but there is no Fault wiring going to the drives, so not sure. Pity I dont have pics of the board wiring on me to check.

martyscncgarage wrote: ↑Mon Sep 16, 2019 3:06 pm

Chaz wrote: ↑Mon Sep 16, 2019 3:03 pm Ok, based on a pic of the setup, I have DriveOK, input 5, NC. I need to see how this is wired in, if at all. I assume it must but but there is no Fault wiring going to the drives, so not sure. Pity I dont have pics of the board wiring on me to check.

Well, youll have to double check that there is no wire physically connected to Acorn input 5
If not set the input to unused. If it is there, you'll have to check your drives and if there is no fault, then whether they need NO or NC.

If the enables are wired, I have a hunch the noise is might be faulting your drives perhaps?

Chaz wrote: ↑Mon Sep 16, 2019 3:44 pm Ok. Input 5 wire goes to the Spindle VFD, so its not measuring anything from the X or Z drive but the VFD. The coolant VFD is right next to it. I suspect the noise is on that wire. Ironically the spindle setup seems happy but didnt think to look at the VFD for it (assumed the wiring was to the Axis drives, not the spindle VFD).

Ill test tomorrow but I assume disconnecting the wire will work and/or shielding that wire will help.

martyscncgarage wrote: ↑Mon Sep 16, 2019 3:48 pm

Chaz wrote: ↑Mon Sep 16, 2019 3:44 pm Ok. Input 5 wire goes to the Spindle VFD, so its not measuring anything from the X or Z drive but the VFD. The coolant VFD is right next to it. I suspect the noise is on that wire. Ironically the spindle setup seems happy but didnt think to look at the VFD for it (assumed the wiring was to the Axis drives, not the spindle VFD).

Ill test tomorrow but I assume disconnecting the wire will work and/or shielding that wire will help.

Too bad you didn't look at the spindle VFD to see if it was showing a fault

Chaz wrote: ↑Tue Sep 17, 2019 2:20 pm I believe this is now solved.

Ran it with the VFD cabinet door open, no fault. Odd. Closed the door, fault.

Checked, VFD error was E.oU.d on the HY unit.

I then remembered that I had set the acceleration time for the VFD from 8 seconds to 3, same as the ramp down.

Anyone who runs a HY VFD knows they have no internal braking and the E.oU.d is often due to overvoltage at ramp down. The door was just luck of the draw. Set the ramp to 6 secs both ways, door closed, no error.

martyscncgarage wrote: ↑Tue Sep 17, 2019 2:29 pm

Chaz wrote: ↑Tue Sep 17, 2019 2:20 pm I believe this is now solved.

Ran it with the VFD cabinet door open, no fault. Odd. Closed the door, fault.

Checked, VFD error was E.oU.d on the HY unit.

I then remembered that I had set the acceleration time for the VFD from 8 seconds to 3, same as the ramp down.

Anyone who runs a HY VFD knows they have no internal braking and the E.oU.d is often due to overvoltage at ramp down. The door was just luck of the draw. Set the ramp to 6 secs both ways, door closed, no error.

You can specify you want the braking resistor circuit added. Message Huan Yang through Amazon.
When I do use them, I use the GT series, supposedly sensorless vector drive