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Ndrive HL User’s Manual
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Adjusting the CfgFbkRDCosPhase axis Parameter:
After starting the Encoder Feedback Configuration utility, make sure the proper axis is
selected and then start collecting data continuously. Set the CfgFbkRDGain axis
parameter to 0 to minimize the gain. This can be done through the Ndebug.exe utility.
Rotate the resolver or inductosyn until the analog signals are at one of the vertical or
horizontal lines; this will ease location of a maximum. See Figure 4-23., below, for an
example. Adjust the CfgFbkRDCosPhase axis parameter until you locate a local
maximum. This can be done through the Ndebug.exe utility. When the maximum has
been found, rotate the motor in a complete circle to ensure you see a circle. If not, the P1
amplitude potentiometer on the pre-amplifier board (if present), may need adjusted.
Figure 4-23.
Resolver Located at Maximum of SIN Signal
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