Issue:
Drive not accepting program changes

Resolution:
Typical reasons that a VFD will not allow a parameter to be changed:
Verify the drive does not have an active run command.  Most parameters changes require the VFD to not be in run status.
Verify the parameter is not incompatible with other parameter settings.
Verify that [AdC] Auto DC Injection is Not set to Ct [Continuous].
Must change AdC to Yes or No to adjust any other parameters which don't permit changes while running..
*Note: Setting ADC to Continuous DC Injection can damage a motor.

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