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Chapter 6
Common Fault Treatment
1-Laser Emission Failure
（1）Make sure the connection of power supply is correct.(+24VDC and
GND connect correctly? Earth the ground wire?)
（2）Make sure the E-STOP switching is released, Emergency Stop Input
is high when the laser is in normal operation.
（3）Make sure the power supply is in normal condition, and check its
output without and with load( connected with the laser).
（4）Software set correctly.
（5）Interface DB-25 connect correctly under specified guide.
（6）Normal Signals of Pins 18 and 19.
（7） Normal signal and supply power of control card(please refer to 5.2
DB-25 control interface pin function).
（8）Make sure the guide light signal is LOW during marking (Pin22 is “0”).
The device’s first priority is to emit the guide light when the guide signal
is HIGH.
2-Power Drops.
（1）Check whether the power supply output steady, and the current is at
its rated value.
（2）For collimated outputs, maintaining a clean output lens is essential,
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