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Motor[x].PhasePosSf


steveneads
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We have had some difficulty with Motor[x].PhasePosSf when converting UMAC code to PPMAC.

 

It seems that the description under Ixx70 on p1416 of the PPMAC Reference Manual "Set PhasePosSf = 256/(Ixx71/Ixx70) for compatible operation" is incorrect.

 

This yields: 256 * commutation cycles per rev / counts per rev

 

I believe that the description for Motor[x].PhasePosSf (p464) is correct.

 

This yields: 2048 * commutation cycles per rev / (256 * counts per rev)

 

Clearly there's a scaling mix up.

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Thanks for pointing that out. Are you referring to the Turbo to Power I-var equivalents table near the end of the Software Reference manual? You gave a different page number than the current manual has (page 1416 versus 1295).
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