Geo Macro Drive – Setting PWM Scale Factor (Ixx66)


Due to the specific nature of the Geo Macro drive’s PWM generation, the Ixx66 parameter in Turbo PMAC must always be set to 16384 for a motor xx commanding a Geo Macro Drive.  There is no need to modify this value for any reason when using a Geo Macro Drive.


If the Ixx66 parameter is left in its default state of 6527 the motor may not be able to achieve maximum speed and torque.  Setting Ixx66 to a value less than the recommended 16384 will act as a voltage limit and can result in perceivable performance degradation.





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