Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 126)

setup and OperatiOn
3-18 Hypertherm Fiber Laser Instruction Manual – 807090 Revision 3
Laser head controller faults
The LHC provides LED indicators to show the status for the following faults.
Fault Cause
Tip touch The tip touch lamp illuminates whenever the nozzle touches the workpiece or another
large object.
Door open The door open fault occurs when:
• The cutting head lens door is not latched.
• The cutting lens holder is not inserted into the lens bay.
• The signal from the proximity sensor is lost.
• The collimator is not attached to the top of the mounting bracket or sensed by the
proximity sensor. The proximity sensor has an orange indicator lamp that should be
illuminated when the collimator is installed.
• The lower end of the laser head is too hot.
• The thermal sensor in the lower end of the cutting head has been activated above
135C. Check the temperature of the nozzle, nozzle adapter, and guard. CAUTION:
THESE COMPONENTS COULD BE VERY HOT AND CAUSE BURNS. Over
temperature in this region is usually caused by heating from the beam due to
contaminated optics.
Collision The collision fault indicates that the cutting head collision mount has been activated.
Over range The over range indicator is illuminated when the capacitive height sensor is beyond its
sensing range. It is normal for this to be illuminated when the cutting head is fully retracted
and should extinguish as the cutting head approaches the plate and the nozzle-to-workpiece
distance is less than 10 mm (3/8 in).