Daihen OTC Welbee Inverter W400, Руководство пользователя

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T
ROUBLESHOOTING
T
ROUBLESHOOTING
C
HAPTER
9
9-4
4
"Temperature WARNING" LED
lights and an error code is
displayed when the power
switch is turned on.
The protection circuit has been
activated due to temperature
error.
Leave it untouched (with the power on) and operate
the cooling fan for 10 minutes or more, and then
turn off the power.
After the above, clean dusts inside the welding
power source. (
8.3
-
Periodical Inspection)
5 Shielding gas is not flowing.
The valve of gas cylinder is
closed.
Open the gas valve.
The pressure of gas cylinder is
insufficient.
Replace the gas cylinder.
Setting/handling of the external
inputs is not correct.
Check that the setting of internal functions F29 to
F32 is correct. (
6.7.2.23
-
F29 to F32: External
input terminal setting)
The external input cables are
disconnected/short-circuited.
Check that there is no abnormality in the cables
connected to the external input terminal block.
If any, repair/replace the cables.
6
Shielding gas does not stop
flowing.
Setting/handling of the external
inputs is not correct.
Check that the setting of internal functions F29 to
F32 is correct. (
6.7.2.23
-
F29 to F32: External
input terminal setting)
The external input cables are
disconnected/short-circuited.
Check that there is no abnormality in the cables
connected to the external input terminal block.
If any, repair/replace the cables.
7
Arc does not generate even
when the setting of welding
conditions is correct.
(w/o no-load voltage) Connection of the torch cable is
loose.
Securely connect the torch cable.
The torch switch is broken. Check that the torch switch works normally.
8
Setting of current/voltage is not
possible.
The automatic machine mode is
selected. Check that the setting of internal functions F4 is
correct. (
6.7.2.4
-
F4: Auto/Semi-auto mode)
An analog remote control
(optional) is connected.
When an analog remote control (optional) is
connected, the setting of the remote control has
priority.
The encoder is broken.
The printed circuit board PCB2 (P30086R00)
needs to be replaced. Contact your dealer.
9
The mode does not change even
when the CRATER-FILL key is
pressed.
(The LED position does not
change.)
The internal function F4, F48 or
F51 is set to "ON".
Turn the settings to "OFF".
10
The welding conditions cannot
be set with the operation panel.
The welding mode does not
change even when switched
with the operation panel.
The erroneous prevention
function to prevent malfunction
of the operation panel is
enabled.
(Erroneous operation prevention
function)
Press and hold the ENTER key three seconds or
more to disable the erroneous operation prevention
function the operation panel.
11 Arc is unstable.
The setting of welding mode is
not correct. Check the settings of wire diameter, wire materials
and shielding gas.
The wire is defective or there is a
failure in wire feeding.
Check that there is no problem in the wire or wire
feeder. (
5.2
-
Check before Welding)
Connection of the voltage
detection cable is not correct. Check that connection of the voltage detection
cable is correct.
There is noise in the voltage
detection cable.
Adjust the arc characteristics to the plus side.
P.C.B. P30205S is failed. Contact your dealer.
12
Wire is not fed (no error code is
displayed).
The pressure roll of wire feeder
came off.
Set correctly the pressure roll of wire feeder. (For
setting, see the instruction manual of the wire
feeder.)
There is an abnormality in
cables of the wire feeder. Check that there is no abnormality in cables of the
wire feeder.
No. Problem Possible cause Corrective action