Laser cutter trouble shooting

Cases 1:

You will find one (or more) of the followings:

A Servo Error shows up in the YASNAC (central equipment) front panel near the floor.
Alarm sign is blinking in the YASNAC front panel.
Status lamp on the YASNAC turns in orange and red at a same time.
Resetting the YASNAC (press reset, power on, and reset in the front panel) will not recover the alarm.
The X-Y stage will not move in JOG mode.

Cause:

The X-Y stage has moved beyond the limit (came too closer to the lower right).

Recovery procedure 1:

Turn off the YASNAC by pressing red "0" button around the front panel.
Probably the X-Y stage is located near the front side. Shove the stage toward the center (to left and away) by hand by 10-20mm.
Turn on the YASNAC by pressing green "1" button around the front panel.

Recovery procedure 2 (when procedure 1 above dose not work):

Turn off the YAGSCAN (right equipment).
Turn off the YASNAC.
Open the right side panel (there are two panels there. open one away from you) of the YASNAC. A screw driver is required.
Turn off the main breaker inside the YASNAC. Then turn on it again after ~10 sec wait.
Turn on the YAGSCAN.
Turn on the YASNAC.

Case 2:

While operating a software "POWERCAM" on a gateway PC, software stops working, especially while writing files onto a HD.

Cause:

Disk full of the drive C: will prevent the software to work properly.
The software writes so many temporary files during its operation. After working for a long period (say, a half year), these files will eventually occupy a large disk space.

Recovery procedure:

You need to delete OLD temporary directories in "C:\work", where all the temporary files have been created. You can just move some of the directories to "D:\work_backup", since D drive still has a lot of space remaining.