TimothyMoulder
Member
Greetings all!
I'm setting up a system with some Automation Direct stepper drives, I was wondering about the power supplies.
The system uses a STP-DRV-80100 driver and STP-MTRH-34127, a total of 4 sets. Up to two may be in motion at any given time. The motors have a nominal current of roughly 6.5 amps, and half that when idle.
I want to connect 2 power supplies in parallel to feed these beasts. The STP-PWR-4810 provides 48 VDC at 10 amps, so combined gives 20 amps. The StP-PWR-7005 provides 70 VDC at 5 amps, so total of 10 amps.
Now, according to the documentation, to get maximum torque, this requires the 70 VDC drive. Which is odd because that is the motor needs 6.5 amps, not sure where the rest of the current is coming from.
So for 4 of these, which is best: 48 volts at 20 amps or 70 volts at 10 amps?
Any thoughts?
Thanks!
Tim Moulder
I'm setting up a system with some Automation Direct stepper drives, I was wondering about the power supplies.
The system uses a STP-DRV-80100 driver and STP-MTRH-34127, a total of 4 sets. Up to two may be in motion at any given time. The motors have a nominal current of roughly 6.5 amps, and half that when idle.
I want to connect 2 power supplies in parallel to feed these beasts. The STP-PWR-4810 provides 48 VDC at 10 amps, so combined gives 20 amps. The StP-PWR-7005 provides 70 VDC at 5 amps, so total of 10 amps.
Now, according to the documentation, to get maximum torque, this requires the 70 VDC drive. Which is odd because that is the motor needs 6.5 amps, not sure where the rest of the current is coming from.
So for 4 of these, which is best: 48 volts at 20 amps or 70 volts at 10 amps?
Any thoughts?
Thanks!
Tim Moulder