Lincoln Electric VANTAGE 520 SD, Operator'S Manual

Page: 34 / 57

B-14
OPERATION
CV-WIRE MODE
Connect a wire feeder to the VANTAGE ® 520 SD and set welder
controls according to the instructions listed earlier in this section.
The VANTAGE ® 520 SD in the ”CV-WIRE” position, permits it to be
used with a broad range of flux cored wire (Innershield and
Outershield) electrodes and solid wires for MIG welding (gas metal arc
welding). Welding can be finely tuned using the “ARC CONTROL”.
Turning the ARC CONTROL clockwise 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 the knob set at 0.
For any electrodes, including the above recommendations, the
procedures should be kept within the rating of the machine. For
additional electrode information, See www.lincolnelectric.com or
the appropriate Lincoln publication.
CONSTANT VOLTAGE WELDING
Synergic CV
For each wire feed speed, a corresponding voltage is preprogrammed
into the machine through special software at the factory.
The nominal preprogrammed voltage is the best average voltage for a
given wire feed speed, but may be adjusted to preference. When the
wire feed speed changes, the VANTAGE
® 520 SD automatically
adjusts the voltage level correspondingly to maintain similar arc
characteristics throughout the WFS range.
Non Synergic CV
In non-synergic modes, the WFS control behaves more like a conventional
CV power source where WFS and voltage are independent adjustments.
Therefore to maintain the arc characteristics, the operator must adjust the
voltage to compensate for any changes made to the WFS.
ARC GOUGING
For optimal performance when arc gouging, set the VANTAGE ® 520 SD
“WELD MODE” switch to the “Arc Gouging” position, and the “ARC
CONTROL” to 10.
Set the “OUTPUT” knob to adjust output current to the desired
level for the gouging electrode being used according to the ratings
in Table B.4.
Maximum current setting is limited to the VANTAGE ® 520 SD
maximum of 525 Amps.
PARALLELING
When paralleling machines in order to combine their outputs, all
units must be operated in the CC-STICK mode at the same output
settings. To achieve this, turn the WELD MODE switch to the CC-
STICK position. Operation in other modes may produce erratic out-
puts, and large output imbalances between the units.
AUXILIARY POWER OPERATION
Start the engine and set the IDLER control switch to the desired
operating mode. Full power is available regardless of the welding
control settings, if no welding current is being drawn.
The auxiliary power of the VANTAGE
®
520 SD consists of two 20
Amp-120VAC single phase (5-20R) GFCI duplex receptacles, one
50 Amp-120/240VAC single phase (14-50R) receptacle and one
50 Amp 240VAC three phase (15-50R) receptacle. The
120/240VAC receptacle can be split for single phase 120 VAC
operation.
The auxiliary power capacity is 11,000 watts of 60 Hz, single
phase power or 17,000 watts of 60Hz, three phase power. The
auxiliary power capacity rating in watts is equivalent to volt-
amperes at unity power factor. The maximum permissible current
of the 240 VAC output is 50 A. The 240 VAC single phase output
can be split to provide two separate 120 VAC outputs with a maxi-
mum permissible current of 50 A per output to two separate 120
VAC branch circuits. Output voltage is within ± 10% at all loads up
to rated capacity.
N OTE: The two 120V GFCI receptacles and the two 120V circuits
of the 120/240V receptacle are connected to different phases and
cannot be paralleled.
The auxiliary power receptacles should only be used with three
wire grounded type plugs or approved double insulated tools with
two wire plugs.
The current rating of any plug used with the system must be at
least equal to the current capacity of the associated receptacle.
SIMULTANEOUS WELDING AND AUXILIARY POWER
LOADS
It must be noted that the above auxiliary power ratings are with no
welding load.
Simultaneous welding and power loads are specified in table B.5.
The permissible currents shown assume that current is being
drawn from either the 120 VAC or 240 VAC supply (not both at the
same time).
VANTAGE ® 520 SD
ELECTRODE CURRENT RANGE
DIAMETER (DC, electrode positive)
(1/8”) 30-60 Amps
(5/32”) 90-150 Amps
(3/16”) 200-250 Amps
(1/4”) 300-400 Amps
(5/16”) 350-450 Amps
TABLE B.4