SWEISS
WELD.COM
info@sweissweld.com
NOTES
32
S/N
Troubles
Reasons
Solution
HF
igniting
board.
The distance between the discharger is too
short.
Adjust this distance (about 0.7mm).
The malfunction of the welding gun switch.
Check the welding gun switch, control
cable and aero socket.
8
No gas flow (TIG)
Gas cylinder is close or gas pressure is low
Open or change the gas cylinder
Something in the valve
Remove it
Electromagnetic valve is damaged
Change it
9
Gas always flows
The gas-test on the front panel is on
The gas-test on the front panel is off
Something in the valve
Remove it
Electromagnetic valve is damaged
Change it
The adjustment knob of pre-gas time on the
front panel is damaged
Repair or change it
10
The welding current can not be
adjusted
The welding current potentiometer on the
front panel connection is not good or
damaged
Repair or change the potentiometer
11
No AC output while selecting
“AC”
The power PCB is in trouble.
Repair or change it.
The AC drive PCB damaged.
Change it.
The AC IGBT module damaged.
Change it.
12
The welding current displayed
isn’t accordant with the actual
value.
The min value displayed isn’t accordant with
the actual value. (Please refer to §3.1)
Adjust potentiometer Imin on the
power board.
The max value displayed isn’t accordant with
the actual value. (Please refer to §3.1)
Adjust potentiometer Imax on the
power board.
13
The penetration of molten pool
is not enough.
The welding current is adjusted too low
Increase the welding current
The arc is too long in the welding process
Use 2T operation
14
The alarm lamp on the front
panel is on
Over
heat
protection
Two much welding
current
Reduce the welding current output
Working time too
long
Reduce the duty cycle (work
intermittently)
Over-voltage
protection
Power
supply
fluctuates
Using the stable power supply
Low-voltage
protection
Power
supply
fluctuates
Using the stable power supply
Too many machines
using power supply
in the same time
Reduce the machines using power
supply in the same time
Over-current
protection
Unusual current in
the main circuit
Check and repair the main circuit and
drive Pr6
