I know this is probably very elementary, but it is a problem for me....
I have a DC motor, controlled via electronic speed control. There are two physical relays for forward/reverse, and a potentiometer for speed variance. My problem is that about half the time, pressing forward or reverse will not drive motor. Relays engage every time, but no DC voltage at main drive contactor. Twice, I have seen half the volts expected (about 50V DC instead of 92V), and once I saw the volts drop from 90 to 0 while driving, and corresponding speed dropped, too. All readings and observations done with a multi meter.
The DC board is all electronics, fuses are all OK (tested), so there isn't a lot I can check on the board (no scope, test bench etc). Do you have any suggestions I can further check, given limited equipment?
I have a DC motor, controlled via electronic speed control. There are two physical relays for forward/reverse, and a potentiometer for speed variance. My problem is that about half the time, pressing forward or reverse will not drive motor. Relays engage every time, but no DC voltage at main drive contactor. Twice, I have seen half the volts expected (about 50V DC instead of 92V), and once I saw the volts drop from 90 to 0 while driving, and corresponding speed dropped, too. All readings and observations done with a multi meter.
The DC board is all electronics, fuses are all OK (tested), so there isn't a lot I can check on the board (no scope, test bench etc). Do you have any suggestions I can further check, given limited equipment?