149YLS-K
Description
The External E-Stop failure indicates that the external E-Stop circuit is
opened. The alarm leads to a shutdown of the laser power supply and
therefore the laser emission. The indicator light (Interlock) on the front
side of the laser lights up yellow.
Possible
causes
• There is an alarm (E-Stop) in the safety circuit of the system
owner.
• The E-Stop circuit of the system owner is not connected to the
laser (safety interface, see supplied technical data).
• Only one channel of the two-circuit emergency stop system was
opened or closed.
Fault diagnos-
tics / trou-
bleshooting
ð Rectify the operator-side failure.
ð Connect the E-Stop circuit of the system owner to the laser
(safety interface, see supplied technical data).
ð Open both channels of the E-Stop circuit to reset the failure. Acti-
vate both safety circuits again by closing both channels again.
Message
Laser overheating
Type
Fault
Resetting
Automatic
Description
The Laser overheating alarm appears as soon as a laser module reaches
a operating temperature of 35°C.
The fault leads to an immediate shutdown of the laser emission. The op-
erating status Laser ready is reset, and the status Laser error is acti-
vated. As soon as the module temperature has fallen to 32°C, an auto-
matic reset of the alarm takes place. The laser emission must be acti-
vated manually.
Possible
causes
• Insufficient cooling of the laser modules due to incorrect parame-
terization of the chiller.
• Interruption of the cooling water supply to the module (e.g.
kinked or blocked hose).
Water/ Water IPG chiller
• The temperature and/or flow rate of the house water lies outside
of the specifications in the technical data.
Water/air IPG chiller
• The filter pads are heavily soiled.
• The ambient temperature lies outside of the specifications in the
technical data.
Analysis / trou-
bleshooting
ð Contact the competent IPG service department to check the pa-
rameters.
ð Check the hose connection on the back side of the laser modules
and inside the laser.
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