OPERATION
3-10 EPT031055 Issue 2 September 2017
• Shutter State / Error Indicator
Note: The GREEN shutter preparation LED blinking is suppressed if
one or both interlock is not closed.
Laser Indicator / Error Indicator
Lit YELLOW Shutter is open, caution laser
radiation is possible!
Lit RED Shutter temperature display
(after power-up only).
Lit RED (permanent) shutter feedback cross-check
failed.
Flashing RED while the GREEN
Shutter preparation LED is lit or
blinking
Shutter is close to over
temperature.
Blinking RED while GREEN
shutter preparation LED is
blinking
A shutter over temperature, or
sensor fail (<10°C) had
occurred. Therefore the laser
was switched off. Restart is
possible.
Flashing RED while GREEN
shutter preparation LED is off
A shutter temperature sensor
fail (<10°C) is present. Therefore
the laser is switched off.
Blinking RED while GREEN
shutter preparation LED is off
A shutter over temperature is
present. Therefore the laser is
switched off.
Lit YELLOW Laser source ready for
emission.
Lit RED (error) Laser is not (correctly) started.
1x Flashing YELLOW Laser modulation (print activity)
missed.
2x Flashing YELLOW Laser modulation (print activity)
not permitted.
3x Flashing YELLOW Laser modulation (print activity)
missed AND not permitted.
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