IPG YLS-2000-K - Page 156

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156
YLS-K
Description
The alarm Splice box is activated when a sensor in the splice box detects
a stray light value above the permitted limit value. The alarm Splice box
leads to a shutdown of the laser power supply and therefore the laser
emission. The operating status Laser ready is reset. The status Laser er-
ror as well as the alarm Critical error are activated.
Possible
causes
• Internal splice box error.
• Too much backscattering from the process.
Analysis / trou-
bleshooting
ð Using the guide laser, check whether the internal optics of the
laser is damaged. To do this, switch on the guide laser and check
whether this is visible after the optics head.
The guide laser should show a round shape in the area of the focus. If the guide
laser is not visible or is poorly visible, this is an indication of damage to the internal
optic.
ð After successfully resolving the problem, follow the steps de-
scribed in section Configuration menu for resetting critical er-
rors.
Message
Dew point temperature too high
Type
Alarm
Resetting
-
Description
ð See Messages of the Dew Point tab .
Message
Unexpected earth fault
Type
Fault
Resetting
-
Description
The alarm Unexpected ground leakage indicates that the voltage in a
laser module between the minus pole (-) and ground (GND) has ex-
ceeded the limit value.
Possible
causes
Internal module error
Analysis / trou-
bleshooting
ð Check which laser module is causing the warning.
ð To do this, open the rear door of the laser and remove the safety
fuse of the first laser module.
ð If the Unexpected ground leakage alarm does not disappear, re-
move the next safety fuse.
ð Check whether the error message is still present.
ð Repeat this process until the alarm Unexpected ground leakage
disappears.
ð Leave the safety fuse of the laser module that is responsible for
the warning open. You can close the safety fuses of the other laser
modules. The laser can be put back into operation.