Created Date: February 22,2012

Created by: Slad

Series wiring will give you more holding torque.

Generally series - more low end torque

Parallel - more speed

You can usually view torque / speed curves on a motor a different rated voltages at the mfgs website.

Thanks

Another questions:

When drive is enabled i need it to hold a load steady,but it is free to move,no voltage/amps on the motor terminals...should it be set up in the drive to hold a load while not moving?

Sorry for silly questions,never delt with stepper/servos before.

Created Date: February 22,2012

Created by: Adisharr

Hi Slad,

Typically the holding torque you 're going to see is the constant current applied to the motor from the drive when it's not in motion. Also called the 'holding ' or 'stop ' current. It's usually adjustable on the drive through a POT. The higher the current, the more heat you 're going to generate in the motor. Use the minimum necessary.

When your drive is enabled, I would expect it to have voltage on the output terminals. The stepper will only actually move when the outputs are cycled in a specific pattern by applying a pulse input to the drive.

If you have no voltage on your stepper then your only holding torque is going to be the motors detent torque (usually listed in the datasheet).

There's another way to somewhat 'lock ' the motor, if you short the windings then you'll find the motor MUCH harder to turn. That's the motor's EMF working against itself.

I'm not sure what your drive does when it's not enabled though.

Let me know if any of this isn't clear - I'm kind of in a hurry at the moment.

Created Date: February 23,2012

Created by: Slad

Hi Slad,

Typically the holding torque you 're going to see is the constant current applied to the motor from the drive when it's not in motion. Also called the 'holding ' or 'stop ' current. It's usually adjustable on the drive through a POT. The higher the current, the more heat you 're going to generate in the motor. Use the minimum necessary.

When your drive is enabled, I would expect it to have voltage on the output terminals. The stepper will only actually move when the outputs are cycled in a specific pattern by applying a pulse input to the drive.

If you have no voltage on your stepper then your only holding torque is going to be the motors detent torque (usually listed in the datasheet).

There's another way to somewhat 'lock ' the motor, if you short the windings then you'll find the motor MUCH harder to turn. That's the motor's EMF working against itself.

I'm not sure what your drive does when it's not enabled though.

Let me know if any of this isn't clear - I'm kind of in a hurry at the moment.

Adisharr all is very clear,Thank you,by shorting windings you mean A to A+/B to B+?

Thanks.