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mazak nexus 200 E Stop Problem Low Speed contactor Burning

rhelectric

Plastic
Joined
Feb 1, 2012
Location
texas
Machine runs parts fine for a while suddenly e stop shuts it down-dont know why? also low speed contactor for spindle motor burns the contacts every few months but now it last only two weeks spindle motor surge test ok any help or direction would be appreciated.
 
I had a nexus 450 doing the same thing, motor windings always checked fine, finnally the the motor burned up when a contactor went, mazak said it was coolant in the motor.

justin
 








 
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