I have a Bridgeport VMC 760 with a DX 32 controller and Siemens drives. I recently purchased the machine from a shop down the street and I had the chance to see it run before I bought it Everything seemed fine and in good working order. I have the mill powered up and running fine with everything but the spindle. If I put in a spindle command over 2000 RPM I get an alarm that reads
" MSG 05:15:21n PM Axis Drive Fault " The interesting thing is that if I bump up the spindle rate 200 RPM at a time I can get it up to 6K RPM. So to me it seems like the current draw spikes and trips the alarm with too big of an increase. I found the settable breaker in the cabinet and clicked it up to 25 amps but I am pretty sure it is not blowing. I also put a AC clamp meter on the 3 legs of the spindle drive and got equal readings around 8 amps while spinning at any speed and 24 max increasing RPM. That is what I learned today, I am not sure what to do next and I would surely appreciate any suggestions. Thanks
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