Hi guys, gonna need some advice on this one.
I got a dual 10A motor controller board driving a 3meter (10') tracking parabolic antenna at work. The system have been taken out of service and put inside a upcoming tourist attraction.
The motors are 2kW brushed DC motors, originally they would take 90VDC at 22A, that is for max 1sec. The coil resistance is somewhere along 0.5-1ohm, including wire resistance. I`m running it at 12V, supplied by a switch mode PSU, at peak the motors draw about 10amps each. Nominal current peaks at 2.5A due to imbalance and friction(the thing have been outside for 35 years), otherwise about 1.5A.
My job is to get it up and running in a safe manner so that it fakes a real mission, basically moving along a fixed pattern whenever the simulator tells it to. So far the project have been a bit bumpy, but it is now working, kind of. I have no problem driving it along one or both axis continuously, but when i try to drive it X seconds along one, then swap direction or do anything else, it seems the MCU is not running.
I don`t have time to work up a new PCB for this one, and I would really appreciate advice on noise removal which can be done on the finished circuit.
Thanks in advance,