Lincoln Electric IM10102 AIR VANTAGE 650 - Manual (Page 25)

B-4 OPERATION B-4
4. ARC CONTROL - The ARC CONTROL dial is active in
the CV-WIRE, CC-STICK and DOWNHILL PIPE modes,
and has different functions in these modes. This control is
not active in the TIG and ARC GOUGING mode.
CC-STICK mode: In this mode, the ARC CONTROL dial
sets the short circuit current (arc-force) during stick weld-
ing to adjust for a soft or crisp arc. Increasing the dial from
–10 (soft) to +10 (crisp) increases the short circuit current
and prevents sticking of the electrode to the plate while
welding. This can also increase spatter. It is recommend-
ed that the ARC CONTROL be set to the minimum number
without electrode sticking. Start with a setting at 0.
DOWNHILL PIPE mode: In this mode, the ARC CON-
TROL dial sets the short circuit current (arc-force) during
stick welding to adjust for a soft or a more forceful digging
arc (crisp). Increasing the number from –10 (soft) to +10
(crisp) increases the short circuit current which results in a
more forceful digging arc. Typically a forceful digging arc is
preferred for root and hot passes. A softer arc is preferred
for fill and cap passes where weld puddle control and depo-
sition ("stacking" of iron) are key to fast travel speeds. It is
recommended that the ARC CONTROL be set initially at 0.
CV-WIRE mode: In this mode, turning the ARC CONTROL
clock wise from –10 (soft) to +10 (crisp) changes the arc
from soft and washed-in to crisp and narrow. It acts as an
inductance/pinch control. The proper setting depends on
the procedure and operator preference. Start with a setting
of 0.
5. WELD OUTPUT TERMINALS WITH FLANGE
NUT- Provides a connection point for the electrode and
work cables.
6. GROUND STUD- Provides a connection point for
connecting the machine case to earth ground.
7. 14-PIN CONNECTOR- For attaching wire feeder con-
trol cables. Includes contactor closure circuit, auto-sensing
remote control circuit, and 42V power. The remote control
circuit operates the same as the 6 Pin Amphenol.
8. 42V / 115V WIRE FEEDER VOLTAGE
SWITCH:
Toggles output of 14-pin connector to voltage require-
ment of Wire Feeder. (Located above 14-pin connector.)
8A. 42V and 115V WIRE FEEDER BREAKERS
9. 6-PIN CONNECTOR- For attaching optional remote
control equipment. Includes auto-sensing remote control
circuit.
10. WELD TERMINALS CONTROL SWITCH-
In the WELD TERMINALS ON position, the output is
electrically hot all the time. In the REMOTELY CON-
TROLLED position, the output is controlled by a wire
feeder or amptrol device, and is electrically off until a
remote switch is depressed.
11. WIRE FEEDER VOLTMETER SWITCH:
Matches the polarity of the wire feeder voltmeter to the
polarity of the electrode.
12. VRD (Voltage Reduction Device) INDICA-
TOR LIGHTS- On the front panel of the AIR VAN-
TAGE ® 650 CUMMINS are two indicator lights. A red
light when lit indicates OCV(Open Circuit Voltage) is
equal to or greater than 30V and a green light when lit
indicates OCV(Open Circuit Voltage) is less than 30V.
The VRD “On/Off” switch inside the control panel must
be “On” for the VRD function to be active and the lights
to be enabled. When the machine is first started with
VRD enabled, both lights will illuminate for 5 seconds.
These lights monitor the OCV(Open Circuit Voltage) and
weld voltage at all times. In the CC-Stick mode when
not welding the green light will illuminate indicating that
the VRD has reduced the OCV to less than 30V. During
welding the red light will illuminate whenever the arc
voltage is equal to or greater than 30V. This means that
the red and green light may alternate depending on the
weld voltage. This is normal operation.
If the red light remains illuminated when not welding in
the CC-stick mode, the VRD is not functioning properly.
Please refer to your local field service shop for service.
If the VRD is turned “On” and the lights donʼt come
“On”, refer to the trouble shooting section.
TABLE B.1
VRD INDICATOR LIGHTS
MODE VRD "ON" VRD "OFF"
CC-STICK OCV Green (OCV Reduced)
While Red or Green
Welding (Depends on Weld Voltage) *
CV-WIRE OCV Green (OCV Reduced)
Green (No OCV)
Weld Terminals Remotely Controlled
Gun Trigger Open
No Lights
While Red or Green
Welding (Depends on Weld Voltage) *
PIPE OCV Green (No Output)
While Not Applicable (No Output)
Welding
ARC GOUGING OCV Green (OCV Reduced)
While (Depends on Weld Voltage) *
Welding
TIG OCV Green (Process is Low Voltage)
While Green (Process is Low Voltage)
Welding
* It is normal for the lights to alternate between colors while welding.
AIR VANTAGE ® 650 CUMMINS