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Chapter 6
Common Fault Treatment
Laser Troubleshooting Table
NO
Fault
phenomenon Check items
Troubleshooting steps
1
No laser
Power
supply
1. Check whether the power supply wiring of the laser
is correct, w 24V and GND are reversed, and
whether the ground wire is grounded.
2. Whether the power supply of the laser is normal.
Check whether the power supply meets the actual
power supply requirements under no-load and loaded
(connected to the laser) state.
Board
3. Whether the signals of PIN18 and PIN19 are normal.
4. Whether the power supply of the marking card is
normal and the signal of the control laser is normal (see
the definition of DB25 port in the manual for details).
emergency
switch
5. Check whether the emergency stop switch (PIN23
pin) of the device is normal (the signal is high when the
laser is working).
Marking
software
6. Whether the software settings are correct (see
software settings for details).
7. Use the software laser test function to observe if
there is a light spot.
8. Use the debugging software to test the laser and
observe the parameters.
DB25
signal
9. Indicate whether the optical signal is in the low state
in the marking state. If in the marking state, the guide
light signal is low level (PIN22 pin is "0" level), if the
guide light signal is high level ("1" level). The laser is the
priority output guide light.
10. Check whether the wiring of the DB25 pin serial port
of the laser is correctly wired according to the wiring
definition.
Red light
confirmation
11. If the red light signal is high, the red light output
will be given priority. (If it is a built-in red laser, you can
judge whether the laser light path is normal by detecting
whether there is red light output).
Isolator
12. Confirm whether the light spot of the isolator is
normal (the light spot is round and there is no dark
spot).
