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packerfan
hello, i have a lot of 3 phase motors running conveyors on my bottle line at the brewery and have a quick question for you guys. i had a Danfoss drive fault out and it said the motor had a short circuit and to check the motor leads , etc. when i disconnected the cable coming in from the motor to the drive then the drive would not fault. so i go out to the motor and do preliminary checks and can't find anything wrong between the motor and the drive. i did a quick ohm check of the motor and across all 3 legs seemed fine. i proceeded to change out the 2h.p. motor and then fired everything up and all was ok then. i didn't get a chance to megger the motor later because it was thrown out. My question is that what else is the quickest sure fire way to check/test one of these motors because this is a high production output line and time is money. thanks for any input.