# Run current and hold current to a stepper motor?

I am programming a motor controller where I have to specify the run current (coil peak current) and hold current (coil hold current) of the motors. The motor I used is a bipolar stepper motor, with a whopping 1.86Kg/cm of stall torque at 1.5Amp current (0.75A per winding) at 1.8 degree stepping angle.

However, the table in the specification makes me confused: It lists a different current for a different torque.

How could I determine run current and hold current from this specification?

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Kg/cm is not a unit of torque. I know that datasheet uses that measure, but monkey-see monkey-do is no excuse. Even if they erroneously were using kg as a unit of force, it still doesn't make sense. If they can't even get the basic simple stuff right, what hope is there for the other specs? Also, if the motor fails to produce torque to your expectation, how can you complain? Who's to say the 1 Nmm you get isn't somehow 1.86 kg/cm since the latter is meaningless as torque anyway? –  Olin Lathrop May 1 '12 at 22:53
From your other comment and nonsensical units above I'm starting to suspect maybe you don't actually know what torque is? –  Olin Lathrop May 1 '12 at 22:55