Hi all,
I have set up a motor control installation whereby the MD30C board is powered from a 24V 5A PSU, and is driving a 24V motor. I am using the A and B inputs wired to switches to control direction, and using the offboard potentiometer input, I have made a crude parallel resistor circuit combined with a 2 position switch to give two speed settings.
The problem I am having is that in one direction on 'full speed' the motor spins quickly as desired, but in the other direction it runs much slower, despite the only change being closing the switch on the A input rather than the B and visa versa.
Does anyone have any ideas why this is happening? I have two MD30C boards installed in the same way and they do they same thing.
Thanks!