OM-492 Page 40
8-10.Voltmeter/Ammeter Help Displays
Use the voltmeter/ammeter help displays to
help determine the cause of no weld output.
When a help display is shown, the inverter
module weld output has stopped but the en-
gine continues to run. Correct the problem
before resuming operation.
The display screen resets when the fault is
corrected.
All directions are in reference to the front
of the unit. All circuitry referred to is lo-
cated inside the inverter module.
1
Help 0 Display
Indicates a shorted thermistor RT2 on the left
side of the unit. If this display is shown, con-
tact a Factory Authorized Service Agent.
2
Help 1 Display
Indicates a malfunction in the primary power
circuit possibly caused by applying a high
weld load at idle speed. Turn Engine Control
switch to Run position. If problem continues,
contact a Factory Authorized Service Agent.
3
Help 2 Display
Indicates a malfunction in the thermal protec-
tion circuitry located on the left side of the unit.
If this display is shown, contact a Factory Au-
thorized Service Agent.
4
Help 3 Display
Indicates the left side of the unit has over-
heated. The unit has shut down to allow the
fan to cool it (see Section 4-3). Operation will
continue when the unit has cooled.
5
Help 4 Display
Indicates a malfunction in the thermal protec-
tion circuitry located on the right side of the
unit. If this display is shown, contact a Factory
Authorized Service Agent.
6
Help 5 Display
Indicates the right side of the unit has over-
heated. The unit has shut down to allow the
fan to cool it (see Section 4-3). Operation will
continue when the unit has cooled.
7
Help 6 Display
Indicates that the input voltage is too low and
the unit has automatically shut down. Opera-
tion will continue when the voltage is within the
acceptable lower range limit (15% below the
applicable input voltage). If this display is
shown, have a Factory Authorized Service
Agent check the power generator output volt-
age.
8
Help 7 Display
Indicates that the input voltage is too high and
the unit has automatically shut down. Opera-
tion will continue when the voltage is within the
acceptable upper range limit (15% above the
applicable input voltage). If this display is
shown, have a Factory Authorized Service
Agent check the power generator output volt-
age.
9
Help 8 Display
Indicates a malfunction in the secondary pow-
er circuit of the unit. If this display is shown,
contact a Factory Authorized Service Agent.
10 Help 9 Display
Indicates a shorted thermistor RT1 on the
right side of the unit. If this display is shown,
contact a Factory Authorized Service Agent.
1
A
V
2
A
V
3
A
V
HE.L P
−
0
HE.L P
−
1
HE.L P
−
2
4
A
V
HE.L P
−
3
5
A
V
HE.L P
−
4
6
A
V
7
A
V
8
A
V
HE.L P
−
5
HE.L P
−
6
HE.L P
−
7
9
A
V
HE.L P
−
8
10
A
V
HE.L P
−
9
802 174-G
