Jasic LS-15000F - Page 36

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7. Troubleshooting of common malfunctions
S
N
Fault
Location
Symptoms
Reasons
Troubleshooting
1
Welder
No response
after start up
The input voltage is
insufficient; the power cord is
damaged or in poor contact;
or the emergency stop
button on the panel is
pressed.
Ensure that the input voltage conforms
to the requirements, the power cord is
properly connected, and the
emergency stop button is released.
2
Water
cooler
Water cooler
overheat alarm
The internal coolant
temperature exceeds the set
value.
In case of overheat, please stop
welding, disable the laser enablement
button, and continue welding after the
alarm is removed.
3
Insufficient water level leads
to overheat.
Check the coolant level of water cooler,
which should be in the standard area.
4
Welding
torch
No light
emission after
pressing the
torch trigger
The enablement button or
the laser button on the
display is not enabled; or the
earth clamp is not clamped.
Enter the diagnosis interface, and
check the various parameters, to
ensure that all preparation signals are
normal and the safety ground lock is
connected.
5
The permission to use the
controller has expired.
Contact the manufacturer to provide a
password for reactivation.
6
Welding torch
protective lens
often burn out
The welding method is not
correct, and the laser
reflection causes damage to
the lens.
The welding torch should be welded at
45 degrees to the plate, not
perpendicular to plate.
7
Parameter settings are
incorrect during high-power
welding.
During high-power welding, upslope
and downslope parameters shall be
enabled.
8
The environment where the
welder is located is too dusty
and the lens is contaminated
with dust, resulting in
burnout.
The welding machine should be stored
in a room with little dust, and the nozzle
should be protected from dust when the
welding torch is not in use.
9
Laser
weakened
during welding
Damage to the protective
lens causes the laser to fail
to gather properly.
Replace the protective lens, check the
cause of lens damage and avoid it.
10
Brass nozzle
burnt
Laser light is not in the
center; or the focal length
adjustment of the graded
tube is not appropriate.
Check whether the red light emission
position and spot size are normal. If the
position is not right, adjust the red light;
if the spot size is not appropriate, adjust
the focal length of graded tube.