[jhartleyjr]

I have a Fanuc Oi-MC with Beta motors on a 3 axis mill. I get a 430 alarm "x-axis sv overheat". Sometimes this happens after 5 minutes of running, and sometimes I get the alarm just a minute after startup with nothing running. The servos are not active and are stone cold.

I have checked connections. The motor thermister measures 70 kohms, which is about the same as the thermister on the y-axis motor.

Does anyone have suggestions for repair or a service company that can help? I am in the Milwaukee area. Or I could ship the drive to somewhere.....

Is there a way to bypass the overheat alarm, and allow the machine to run?

Thanks in advance for any suggestions.

John H.

[Al_The_Man]

In some instances the OH alarm shows up if the motor current is running high, as it anticipates the overheat condition.
Al.

[memoryman]

Terry Meinert is a very good tech, about1/2 hr north of you. 262 323 6985