That's what I thought, but it's not doing anything.

I doubt there's a problem with the drive. It's more likely I'm missing something obvious.
Power is OK, it's not faulting so there must be a motor connected, although I'm relying on the markings on the original wiring that I've got the correct motor. Even still, I would of thought the Current Loop screen would of shown something.
Only other wires I've got connected are the step/dir wires, but they're not powered up yet, as the line driver board that will drive them hasn't got a power feed yet.

I'll reset the drive and try again in the morning, as I'll need to squeeze behind the machine to listen to the motor.