I'm working on replacing a current system ( no longer available ) with my own version. A single stepper is used to pick up a load via a worm gear winch. It takes 134 in oz to pick a full load up.
So I'm looking at motors from AutomationDirect.
This:
STP-MTR-34066
and this:
STP-MTRH-34066
The main difference being 2.8 amps per phase VS 6.3 amps. If I read the specs right the 6.3 amp / phase motor holds its torque rating at a bit higher sps than the one rated at 2.8.
So the motor that I ( currently ) use is set to half stepping mode and runs at 250 sps to a max of 2700 sps. the STP-MTRH-34066 with 6.3 amp / phase should have no issue handling the load. Even the 2.8 amp / phase may be just fine. I could be going overkill on safety factor.
Without debating the motor choice, If your motor is rated at 6.3 amp / phase and the driver like this STP-DRV-4850 is rated to 5 amps.. do you risk damage to the driver, or is the amp limitation on the driver a built in safety factor to the motor as it will only deliver 5 amps per phase?