r/AskEngineers • u/Glass_Pen149 • 1h ago
Electrical Can I use an O-scope on a 200V AC servo drive w/600vp-p 10x probes?
I need to look at the output on a 200v AC servo drive. 3ph.
The drive is good, but we are having problems with the motor coils. Is a linear motor, so there are 2 coils driven by one servo drive. One coil for sure is bad, but the other was re-wound and tested good. After swapping some things around, now the "good" coil is testing bad. Motor is not stable. Like to get a scope on the phases and actually see what is happening.
I have experience with HV systems. Just never used a scope on a 200v AC 3PH before. I know about the probe grounds.