Caution - Burned out CIM blows Victor

[EricVanWyk]

Originally Posted by JesseK

Interesting information. I wonder how the jags respond to this, given their internal fault protections. Really I just want to know so if something weird happens electrically we don't immediately blame the Jaguar.

There is really only one way to find out, and due to the RMA policy, it is free.


To measure CIM resistance, you really need a 4 wire set up and you need to check across the range of shaft positions. Hook up the 4 wire resistance meter and SLOWLY turn the shaft in small degree increments, pausing for a few seconds each time. The brushes can easily double / halve (or more) the resistance for a given position, and the back emf (generator voltage) of a moving CIM will overwhelm the ohmmeter.