Vector Welding AC/DC TIG 200P Instrucciones De Operación página 34

Troubleshooting
Nr. Troubles Reasons
The display panel is damaged
The number of the
5 display is not
Digital tube is broken
intact
If the overheat indicator is on
No no-load
The main circuit is broken
voltage output
6
(MMA)
The machine is broken
The welding cable is not connected
with the two output if the welder
The welding cable is damaged
The earth cable connected unstably
Arc can not be
The welding cable is too long
ignited (TIG) ,
there is spark
7
There is oil or dust on the workpiece
on the HF
The distance between tungsten
igniting board
electrode and workpiece is too long
There is no Argon flow or the
connection is poor
Input voltage not stable
The HF igniting board does not work
Arc can not be The distance between discharger is
ignited (TIG) , too short or too long
there is no spark
8
The malfunction of the welding gun
on the HF
switch
igniting board
No argon gas flow or the air tube
connect not good
Check if the function selected MMA Change the function to TIG
Turn on the Check the HF funtion is selected
power source,
HF board is broken
everything is
9
normal , but no
Earth clamp connect not stable
HF igniting
No argon gas flow or the air tube
connect not good
Something is in the valve
Gas always flows
10
Electromagnetic valve is damaged
Gas cylinder is close or gas
pressure is low
Something is in the valve
Electromagnetic valve is damaged
No gas flow (TIG)
11
Air tube is brocken
Pressure too high or air regulator is
broken
58
Solution
Change the display panel
Change it
Wait a few minutes, the machine
can be operated normal
Check and repair
Consult the dealer or the
manufacturer
Connect the welding cable to
the welder's output
Repair or change it
Check the earth cable
Use an appropriate welding cable
Check and remove it
Reduce the distance
(about 3mm ,less than 5mm)
Check and reconnect
Check the power supply
Repair or change it
Adjust the distance (about 0.8mm)
Check the welding torch switch,
control cable and aero socket.
Check and reconnect
Select the HF funtion
Repair or change it
Check the earth clamp
Check and reconnect
Remove it
Change it
Open or change the gas cylinder
Remove it
Change it
Change it
Check gas
Nr. Troubles Reasons
Checking if the electorde stick to
the work piece that the anti-stick
The welding
function is on
current cannot
12
Control board is broken
be adjusted
Shut off the power when changing the torch
The power board is broken
No AC output
The AC drive board damaged
13 while selecting
The AC IGBT/IGBT module damaged
"AC"
Control board is broken
The welding The min value displayed isn't
current displayed
accordant with the actual value
14 isn't accordant
The max value displayed isn't
with the actual
accordant with the actual value
value
The welding current is adjusted
too low
The penetration The arc is too long in the welding
of molten pool is
15 process
not enough
The power cable or the welding
cable is too long
AC Width adjustment is not correct
Over-heat protection ,too much
welding current
Over-heat protection ,working too
Thermal overload much time
16
indicator light is on
Over-current protection, current in
the main circuit is out of control
Input voltage is too low
Fan is broken
Tig torch is connected to the
Tig electrode melts
17
positive terminal
when welding
Tungsten electrode is too big for
the welding current
Arc flutters during
18
Tig welding
Check the earth clamp position on
the work piece
Check the welding circuit is correct,
for example the earth clamp is
When Cut function
connected to work piece
19 is selected ,there is
Air flow is not correctly connected
HF but cannot cutting
Machine is broken
Troubleshooting
Solution
Separate the electrode and
work piece
Repair or change it
Repair or change it
Change it
Change it
Repair or change it
Adjust potentiometer Imin on
the control board
Adjust potentiometer Imax on
the control board
Increase the welding current
Adjust the distance from torch
to work piece
Use the suitable length from
manufacturer
Change to suitable setting
Reduce the welding current
Reduce the welding time
Check and repair main circuit
and drive board
Check the power supply
Change the fan
Connect the tig torch to negative
terminal
Select the correct size of tungsten
electrode
Adjust the position of earth clamp
Connect the circuit correctly
Check the air flows
Consult the dealer or the
manufacturer
59