T
ROUBLESHOOTING
T
ROUBLESHOOTING
C
HAPTER
9
9-4
7
High-frequency discharge occurs,
but arc is not generated.
Connection of the torch cable is
loose.
Securely connect the torch cable.
The torch switch is broken.
Check that the torch switch works normally.
Electrode has turned in white.
Grind the electrode.
Electrode diameter is too large
or current setting is too low.
Correct the electrode diameter and the current
setting.
8
Setting of current value is incapable.
The automatic machine mode is
selected.
Check that the setting of internal functions F4 is
correct. (
6.10.2.4
-
F4: Auto/Manual 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 dose not change even
when the CRATER-FILL key is
pressed.
(The LED position does not change.)
Internal functions F45 and F48
are set to "ON".
Change 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
The password is lost
-
Contact your dealer.
12
High-frequency
discharge does
not occur
between the
electrode and
the base metal
even after you
press the torch
switch.
Discharge spark
sound is heard
from the inside
of the power
supply.
Electrode has turned in white.
Grind the electrode.
The cable (base metal side) is
connected to the output
terminal -. (High frequency is
leaking.)
Connect the cable (base metal side) to the
output terminal. (base metal side)
Discharge spark
sound is not
heard from the
inside of the
welding power
source.
Connector of a high-frequency
generator came off.
Check the coming off of the connector of the
printed circuit board P10536X.
13
Loss of arc occurs in pulse welding.
Base current value is 10 A or
less.
Increase the base current value.
14
Loss of arc occurs in AC welding.
Fuse F1 is fused.
Replace F1.
No.
Problem
Possible cause
Corrective action
Summary of Contents for Welbee WB-A350P
Page 2: ......
Page 8: ...TABLE OF CONTENTS vi MEMO ...
Page 28: ...PART NAMES PRODUCT SPECIFICATION AND CONFIGURATION CHAPTER 2 2 12 ...
Page 52: ...CONNECTION OF EXTERNAL EQUIPMENT CONNECTION CHAPTER 4 4 18 ...
Page 108: ...OPERATION OF ANALOG REMOTE CONTROL OPTIONAL WELDING CONDITION CHAPTER 6 6 48 ...
Page 138: ...REFERENCE DRAWING REFERENCE MATERIALS CHAPTER 10 10 4 10 2 1 Schematic diagram ...
Page 139: ...10 5 Chapter 10 Reference Materials REFERENCE DRAWING REFERENCE MATERIALS CHAPTER 10 ...
