WOW X, Y, Z Servo amplifier fault!!!

[carbidecraters]

What would cause all 3 to fault out! I noticed the spindle stuttered as well. Is this a chassis issue? Has anyone here seen this happen before?

K1 relay was clicking away like mad 1994 4020

[scadvice]

incoming legs voltages? How about the leg voltages from the transformer to the control ?? Grounding issue?? Never heard of that type of problem
Steve

[carbidecraters]

All voltage fine...K1 and K2 relays are just BUZZING AWAY for minutes after this happens.

I tried running a program with no spindle turning no fault
I tried jogging axis with no fault
I tried letting just Y axis move no fault running program
I tried just Z no fault running program
I tried XYZ fault runnig program
I tried YZ fault running program
After fault I try to reset fault now I get random y axis fault and Z axis fault and after trying to turn the spindle on I get C axis spindle drive fault
The relays have been buzzing for 5mns now
When trying the spindle I get the relay in the back buzzing
Incoming voltage correct
Incoming voltage to drive correct
Drive recently rebuilt by Practec after it failed due to fan fault
Replaced relays no help still buzzing not buzz all the time.

WTH?

[carbidecraters]

I am suspecting the inverter spindle drive unit! When its powered up initially it keeps flickering between 0,1,2,4 so I think it may have to be sent back it. I am going to pull one from another machine and swap inverter drives to see if that helps..... Maybe thats not a good idea I am not sure.

[scadvice]

without answering why your getting the other faults. Did I understand you... that if you now run the program without the spindle you still get a fault on the axis?
Steve

[scadvice]

I think your right about the inverter or something directly related to it.
Steve

[carbidecraters]

Yes still get the fault. The relay is buzzing intermittantly and will buzz away for a couple minutes then stop and let the axis drivers be resety but if its buzzing it wont let them reset. Now I could jump 14-16 and bypass the fault line but at this point would that even help? I am getting this fault without any spindle rotation. It just started to happen and is the strangest thing I have ever seen. Now it is possible that the inverter could be at fault when the machine is running or trying to orient the spindle but even when it isnt I still get the fault. Very frusterating.

[carbidecraters]

Exchanged K21 relay everything seems good!

[scadvice]

...of..a..gun!
Steve