Lincoln Electric VANTAGE 400-I Operator's Manual page 18

VANTAGE ® 400-I
4. ARC CONTROL
- The ARC CONTROL dial is active in the CV-
WIRE, CC-STICK and DOWNHILL PIPE modes, and has different func-
tions in these modes. This control is not active in the TIG 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 pre-
ferred 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 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. POLARITY SWITCH-
ELECTRODE (-).
6. WIRE FEEDER VOLTMETER SWITCH-
Matches the polarity of the wire feeder voltmeter to the polarity of the
electrode.
7. 14-PIN CONNECTOR-
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-
equipment. Includes auto-sensing remote control circuit.
9. WELD TERMINALS CONTROL SWITCH-
WELD TERMINALS 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) INDICA-
TOR LIGHTS-
On the front panel of the Vantage 400-I
Select, ELECTRODE (+) or
For attaching wire feeder control
For attaching optional remote control
In the
are two indicator lights. A red light when lit indicates
Circuit Voltage) is equal to or
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.
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
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 don't come "On", refer to
the trouble shooting section.
VRD INDICATOR LIGHTS
MODE VRD "ON"
CC-STICK OCV Green (OCV Reduced)
While Red or Green
Welding (Depends on Weld Voltage) *
CV-WIRE 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) *
PIPE OCV Green (No Output)
While Not Applicable (No Output)
Welding
ARC GOUGING OCV Green (No Output)
While Not Applicable (No Output)
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.
B-3
OPERATION
OCV(Open
greater than 30V and a green light
is less than 30V.
OCV(Open Circuit Voltage) and weld
TABLE B.1
VRD "OFF"
No Lights