Centroid Community CNC Support Forum

Having an issue with controlling spindle speed with my Acorn build. Attached is my report. I did the spindle bench test with no issues, but now I get no change in the Analog output after changing the slider on the VCP or give a M3 S* command through midi. The spindle spins as soon as it is turned on via the VCP. The system is wired per Acorn drawing S 14984 Ver: 3.

Huanyang VFD model HY02D223B, manual attached. Current settings are as follows:

Parameter Value
PD001 1
PD002 1
PD003 400
PD004 400
PD005 400
PD006 2.5
PD007 0.5
PD008 220
PD009 15
PD010 8
PD011 30
PD023 1
PD026 1
PD044 2
PD045 3
PD046 14
PD052 3
PD070 0
PD072 400
PD073 0
PD141 220
PD142 9

Looked through the bunches of Huanyang VFD threads but didn't see anything like this. Any help you can give?

Donald

test the spindle with a 9v battery without acorn with the wire unplugged from acorn board. then use a volt meter to see if the board is putting out what you expect. That should narrow down which way your issue is.

Just remove the analog control wires from Acorn and hook them to a 9v battery?

Donald

donaldintexas wrote: ↑Mon Jul 17, 2023 6:10 am Just remove the analog control wires from Acorn and hook them to a 9v battery?

Donald

Yes, it's a quick easy way to see if 9v will give you 90% of expected speed. Then you know which direction to troubleshoot.

Thanks, Ken, found a loose wire on the analog terminal. Tightening up fixed the problem.

Donald