Lincoln Electric VANTAGE 400 Operator's Manual page 20

VANTAGE 400
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 mode and ARC
GOUGING mode.
CC-STICK mode: In this mode, the ARC CONTROL dial sets the short
circuit current (arc-force) during stick welding 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 recommended
that the ARC CONTROL be set to the minimum number without elec-
trode sticking. Start with a setting at 0.
DOWNHILL PIPE mode: In this mode, the ARC CONTROL 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 deposition ("stacking" of iron) are key to
fast travel speeds. It is recommended that the ARC CONTROL be set ini-
tially 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-
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 control cables.
Includes contactor closure circuit, auto-sensing remote control circuit,
and 120V and 42V power. The remote control circuit operates the same
as the 6 Pin Amphenol.
8. 6-PIN CONNECTOR-
For attaching optional remote control equip-
ment. Includes auto-sensing remote control circuit.
9. WELD TERMINALS CONTROL SWITCH-
NALS ON position, the output is electrically hot all the time. In the
REMOTELY CONTROLLED position, the output is controlled by a wire
feeder or amptrol device, and is electrically off until a remote switch is
depressed.
10. WIRE FEEDER VOLTMETER SWITCH:
Matches the polarity of the wire feeder voltmeter to the polarity
of the electrode.
11. VRD (Voltage Reduction Device) INDICATOR
LIGHTS-
On the front panel of the VANTAGE 400 are two indi-
These lights monitor the
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 illu-
minate whenever the arc voltage is equal to or greater than 30V.
This means that the red and green light may alternate depend-
ing 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 don't come "On", refer to
the trouble shooting section.
MODE
CC-STICK
CV-WIRE
Provides a
PIPE
ARC GOUGING
TIG
In the WELD TERMI-
B-3
cator lights. A red light when lit indicates
Voltage) is equal to or greater than 30V and a green light when
lit indicates OCV(Open Circuit Voltage)
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.
OCV (Open Circuit Voltage)
TABLE B.1
VRD INDICATOR LIGHTS
VRD "ON"
OCV Green (OCV Reduced)
While Red or Green
Welding (Depends on Weld Voltage) *
OCV Red (OCV Not Reduced)
Weld Terminals On
Red (OCV Not Reduced)
Weld Terminals Remotely Controlled
Gun Trigger Closed
Green (No OCV)
Weld Terminals Remotely Controlled
Gun Trigger Open
While Red or Green
Welding (Depends on Weld Voltage) *
OCV Green (No Output)
While Not Applicable (No Output)
Welding
OCV Green (No Output)
While Not Applicable (No Output)
Welding
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.
OPERATION
OCV (Open Circuit
is less than 30V.
and weld
VRD "OFF"
No Lights