Omron R88M-1M Series User Manual page 224

3 Specifications
Precautions for Correct Use
Disconnect all connections to the Servo Drive before attempting a megger test (insulation resis-
tance measurement) on a Servo Drive. Not doing so may result in the Servo Drive failure.
Do not perform a dielectric strength test on the Servo Drive. Internal elements may be dam-
aged.
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AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)