SV023 Alarm on control boot up - Puma 6 with 10T

[Radius]

Hi Everyone!

I have a Daewoo Puma 6 with a 10T control. I bought this machine as
non-working with a SV023 Servo Overload alarm. The alarm comes up the
second the control boots up, so I can't move any of the axis.


I disconnected the power cable to the servo with no change in alarm
I swapped the "data" and power cables between the velocity control
units with no change


Something that is strange is that if I swap the power input connector
*only* between the X and Z axis, the alarm will move to the X axis. I
thought maybe there was a power problem, but the voltages coming out
of the transformer are within 1 volt between and X and Z axis


I'm not sure where to go from here in diagnosing the problem.
Unfortunately I don't have any schematics, etc.


On a related note, would a series 10 maintenance manual have the
information I would need to help diagnose this problem? There is a
manual up on ebay for a somewhat reasonable price.


Thanks for any help,
Michael

[trubleshtr]

maybe the P/S ?
Are you saying there are dedicated power cables going into each axis drive from one power supply? and that there is no common DC bus or anyting like that?

[Radius]

Originally Posted by trubleshtr maybe the P/S ? Are you saying there are dedicated power cables going into each axis drive from one power supply? and that there is no common DC bus or anyting like that?

Yes, there are individual taps from the transformer for the Z and X velocity control units. There is a common DC bus on the transformer itself as far as I can tell.

Michael

[Radius]

Woo Hoo!!

Problem solved!

See this thread for details if anyone is interested:

http://www.cnczone.com/forums/showthread.php?t=42716

Michael