Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 210)

Maintenance
4-18 HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3
Problem Solution
The TIP TOUCH signal is constantly high
Look for an electrical short between the nozzle and earth
ground or the nozzle and the retaining nut.
1. Verify that the insulating washer is installed between
the nozzle adapter and the retaining nut.
2. Clean any debris from the nozzle and retaining nut area
with a rag and compressed air.
The TIP TOUCH signal does not turn ON when the nozzle
touches the workpiece or is touched by hand
Look for a bad connection between the nozzle, the nozzle
adapter, and the contact ring.
1. Remove nozzle and nozzle adapter and verify that the
tip touch signal is generated when the contact ring is
touched.
2. Clean and replace parts as necessary.
3. Contact technical service for assistance.
Nozzle height is not at the correct level while cutting
1. Verify that the nozzle adapter nut is securely tightened.
2. Verify that the insulating washer is installed and is not
damaged.
3. Use the diagnostic screen discussed in section 3 of
this manual to verify that the analog output voltage on
the laser head controller is approximately 1 VDC when
the nozzle-to-workpiece distance is 1 mm. Repeat
the calibration procedure in the Installation section if
necessary.
The distance signal does not change as the distance
between the nozzle and the workpiece changes
1. Verify proper connections of all wires and that the
correct supply voltages are present.
2. Inspect the nozzle, the insulating washer, and the
nozzle adapter, replace if necessary.
Poor cutting performance
1. Inspect and clean the lens. Replace if necessary.
2. Verify that the surface seals on the lens holder are
installed and not damaged. Replace if necessary.
3. Verify that the manual focus position ring is set for
the correct focal position. Verify the focal position by
repeating the focus finding procedure, if necessary.
4. Verify that the o-rings in the pressure seal bushing,
located between the nozzle adapter and the guard, are
not damaged.
5. Verify that the insulating washer is not damaged.
Replace as necessary.
6. Verify that the beam is centered in the nozzle orifice.
troubleshooting