[balsaman]

I think the gecko 201 is actually good for 80 volts, 7 amps. This is a little under the rated current of the motor. I think you can derate the drive with a pot to under 7 amps and you should be ok. The motor won't develop maximum torque. I am sure you will need some heat sinks.

I would contact gecko first, to see what they recommend.

Eric