What is ovc alarm in fanuc robot

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When turning the servo the current actually drops, but at rest is when the current increases. Note im using MORGRP.OVCMNTR to watch the current draw on the motor. Whats really strange about this situation is the manner in which the OVC alarm occurs. The motor is a new aif12/4000 motor that is mated to an 80:1 gear reduction rv unit (this turns a large turntable).

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Im having a problem with an aux axis on a machine we built.