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Will the measurement of the 24v on an Altivar drive be different if referenced from earth ground as opposed to the COM terminal of the drive.

Reference point for the 24v power supply.

Product Line:
Altivar VFD

All models and serial numbers with the exception of the ATV11.  This drive has a control voltage of +15v.


Yes, the common (COM) terminal of the Altivar power supplies are floating (no connection to earth ground) so the voltage measured to the 24v from the earth ground can be different from the COM terminal.
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