Taking a multimeter to the AC outlet serving your satellite receiver is extremely important.
Out in the country, strange dumb ass things can be found picking up after handymen acting as electricians. Start with checking Hot, Neutral and Ground , and the potential between each.
After confirming there is no voltage (AC first, then DC), check resistance between all combinations with the ohmmeter section. Scary things can happen coming off a typical 220 volt AC circuit normally used for dryers and stoves. If you are taking such a circuit and pulling off 110 VAC, follow your color codes and measurements. I once plugged in a soldering iron into a 110 volt AC wall outlet and immediately fried it, because an "electrician" before me had wired it in a way that it was at 220 volts AC potential between hot and ground. I saw another satellite dealer go through at least four of their deluxe DX DSB-800 satellite receivers and burn them to pieces because the grounded wiring connection used on a proper grounded plug fired 220 volts into the receiver. Similar to above. No problem using DX Antenna's most basic receiver, which did not have a ground. He was only plugging into 110 volts with Hot and Neutral, with no miswired ground connection to double the fun. All it would have taken is to do some proper voltage and continuity measurements in the first place at a new installation, but instead he was using high end receivers as expensive fuses to test the same.
All of these lessons are probably even more critical with motor drive systems because your source voltage and grounding needs to be completely in order to start out with. Every other mechanical problem such as wiring, counting devices in the motor drive, will only add to the fun. At least you have a fighting chance if you inspect the outlet and your basic wiring like an electrician, before putting these sometimes complex systems in contact with your AC power.