Troubleshooting DC Servo Motors

In this video the CNC Repairman goes through how to troubleshoot DC servo motors in and out of the electrical cabinet. If the motor measures bad order a replacement at CNC Replacement Parts.
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[@amtechnology64]

Very helpful information 👍👍👍👍

[@mariovicentemorales7021]

Nice video 😃. Thanks

[@Jaeyezme]

Hi! Thank you for this knowledge. When I measure the resistance between earth and phases, the multimeter shows infinity. What should I check first?

[@jdcustom4655]

Thank You.

[@andreabelian1861]

Nice video. What's the model number of portable Hipot tester ? thanks

[@robbiemulholland6477]

Helpful video, but a little bit contradictory. You said anything under 1M ohm is bad, but when you tested in the panel and got 2M ohm, you said that was bad. I’m not a CNC specialist, but if I read 2M ohm between a phase or winding to earth/ground, I’d probably be looking elsewhere for the fault

[@pabloguillermo6208]

Hello
I'm from, Paul I'm from Peru
I have a HAAS VF0 CNC.
It is possible to use the servo motor and its original amplifiers and perform the control with mach3.
How to identify pulse and direction, enable.

[@jenpsakiscousin4589]

Anyone got a spare SEM mt30m4 28 laying around?

[@petersc1000]

Its generally not a good idea to megger at a higher rating than your insulation is rated at. I wouldn't have a problem meggering that motor at 500 but wouldn't do the 1000volt as it risks punching holes through insulation at the microscopic level. expected good levels is 1meg plus 1 meg per kv.