Topics created by Elon

Ok, so that was painful, but mystery solved. I'm not sure how this happened, but my A motor pulley grub screws had come loose and that motor was only partially participating. I realigned the pulley, tightened the screws, and X and Y are back in business.

@elon said in What goes to GND (-), V- or ground?:

I'm still mildly curious whether my gauge changes from 18 (plug to wall) to 14 (my wiring) are going to be an issue. Should they be matched up or does it not matter as long as I don't take it above 18 awg for main power?

Not an issue at all.

If you look at the label on the power supply you will see that the AC current in to the power supply is a good deal less than the DC current out of the power supply.

The ability to carry those currents with acceptable voltage loss determines the size of the wire needed.

Assume a 2% loss is acceptable. You can look up the resistance per foot of 18 and 14 gauge wire. Knowing the length of wire (out and back) in each case you can compute the voltage drop for those max currents and see how it compares to the assumption of 2% loss.

Frederick