[scudzuki]

1994 Arrow 500
CT control, drives, motors.
Fired up the machine today, powered on the servos, pushed the alignment button...
halted with a spindle drive fault.
Drive display shows -OC- (overcurrent?)
Voltage looks okay everywhere.
Checked the wires, nothing appears loose.
Reseated all of the connectors.
Tried a couple more times.
Always got a spindle drive fault, sometimes the drive displayed -OC-, sometimes -UU-, sometimed rdy (ready, no fault).
Anybody know of any problem areas to check before I send the drive out for service?

Joe

[mmckell]

good day Joe
is it possible to hook a laptop to the drive to show the internal error?

our arrow has A2100 control with kollmorgen drives and uses "Motion Link" as the software to setup and/or display internal drive problems.

i'm not familiar with your control but, maybe CT uses something similar or even the same thing

just a thought

good luck

Mac :cheers:

[scudzuki]

I've never seen any discussion of software for managining/diagnosing the spindle drive but that doesn't mean it doesn't exist.

Joe

[underthetire]

Usually during power up it's a bad drive. You can try to disconnect the motor leads and see if the alarm changes.

[scudzuki]

Meaning if I disconnect the motor leads and it still alarms out it is the drive since I've ruled out a short in the motor?

Joe

[mike_Kilroy]

if u disconnect the motor leads from a drive and it still faults out with overcurrent it is likely the drive is broke.

[scudzuki]

It doesn't overcurrent with the motor disconnected. The load meter ramps up as soon as I start aligning the axes. If I spin the spindle by hand when it tries to align the spindle, I can get it aligned. If I MDI an M3S500, the load meter goes to 157% (full scale) then faults with S: axis follower error after a few seconds since the commanded speed is not achieved.

Joe

[mike_Kilroy]

The motor is disconnected and you still get an over current on align, or is the motor hooked back up?
You can call Chris P at the office 937-660-5313 and I bet you two can get to the bottom of this pretty quick if you want!