Motor Alarm ?

I've got a Hitachi Seiki 3NE which has developed a motor alarm and put the machine into an EStop condition. This is an alarm LED on the operator's panel the next to the lube & shear pin alarms, not on the NC control. No alarm there.

We always thought this was a motor overheat alarm and we were wondering if anything else could cause it. The motor seems good and the motor repair guy I talked to suggested it could be the thermister in the motor has gone bad.

How would I check the thermister and what kind of values would I be looking for? Couldn't I fool the control by bridging in a good thermister temporarily?



Reply to
Loading thread data ...

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.