PLCs, VFDs, Motors and Controls
Operator calls and is unable to start his machine.
Found: ABB Drive faulted with "Earth Leakage" Displayed.
Motor was 100 HP, Jacket cooled.
With Fluke 87 III Multi-meter I found a Slight reading to ground on one of the phases. (measured on Load side of VFD, Still connected)
I disconnected the...