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The link below shows all of the current motors and drives with the new current ratings. Note: Most older manuals will not be updated with this information, like the Zeta, Gemini, and OEM750 manuals.

New Stepper Currents

This change is mostly due to normalizing our ratings with the market, but some applications still require 100% duty cycle or running the motor above 20 rps, which could be where the peak power point is, depending on the motor. The link below shows all of the current motors and drives with the old current ratings.

Note: There is no old model data on the VS series of motors.

Old Stepper Currents

All motor/drive currents are selected with the motor connected to a 10" X 10" X 0.25" aluminum heatsink. If the application has no heat sink for the motor then the current and torque will need to be derated.