Help - Current For Stepper Motor Driver AM882 - ProTuner

[PaulP]

I only have a 500Va toroidal running 68v DC with no problems

Is that PSU of yours running 4 off 3nm stepper motors from that or 3.

Just to confirm when I read 500VA does that mean theoretically it's capable of delivering 500v at 1A and conversely 1V with 500A? So if a 500va psu is set to output 68v then it can deliver (500/68) 7.35A? I know it's quite a generic question but it half confused me back in the days of education.

[Clive S]

Is that PSU of yours running 4 off 3nm stepper motors from that or 3.

Yes twin screws so 4 steppers.

The toroidal does not give out 68 volts . It is about 50V AC out but when rectified it is around 1.4 higher and becomes DC