Lincoln Electric VANTAGE 520 SD, Operator'S Manual

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B-7
OPERATION
7. WELD TERMINALS ON SWITCH
Output is enabled when in the ON position. Output is remotely controlled
when in the REMOTE position. This control is not active in ArcLink
®
modes.
8. DOOR LATCH
9. ARC CONTROL
The ARC CONTROL knob is active in the CV-WIRE and CC-STICK modes,
and has different functions in these modes. This control is not active in
the TOUCH START TIG mode or in ArcLink
® mode.
CC-STICK mode: In this mode, the ARC CONTROL knob sets the short
circuit current (arc-force) during stick welding. Increasing the number
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 CON-
TROL be set to the minimum number without electrode sticking. Start
with a setting at 0.
DOWNHILL PIPE mode: In this mode, the ARC CONTROL knob 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 deposi-
tion (“stacking” of iron) are key to fast travel speeds. It is recommended
that the ARC CONTROL be set initially at 0.
10. WELD MODE SELECTOR SWITCH:
(Provides six selectable welding modes)
CV-WIRE
DOWNHILL PIPE
CC-STICK
TOUCH START TIG
ARC GOUGES
ARC LINK
11. 42V / 115V WIRE FEEDER VOLTAGE SWITCH:
Toggles output of 14-pin connector to voltage requirement
of Wire Feeder. (Located above 14-pin connector.)
11a. 42V and 115V WIRE FEEDER BREAKERS
12. 5-PIN CONNECTOR
For attaching an ArcLink ® Wire Feeder control cable.
13. 12-PIN CONNECTOR
For attaching optional remote control equipment. The
K2909-1 (12-pin to 6-pin) adapter cable is included for
attaching to accessories requiring the 6-pin connector.
14. 14-PIN CONNECTOR
For attaching wire feeder control cables. Includes contac-
tor closure circuit, work sense leads, remote control cir-
cuit, and 120VAC and 42VAC power.
15. WELD OUTPUT TERMINALS “+” POSITIVE
AND “-” NEGATIVE
These 1/2” - 13 studs with flange nuts provide welding
connection points for the electrode and work cables. For
positive polarity welding the electrode cable connects to
the “+” positive terminal and the work cable connects to
this “-” negative terminal. For negative polarity welding the
work cable connects to the “+” positive terminal and the
electrode cable connects to this “-” negative terminal.
16. LOCAL/REMOTE SWITCH-
In the LOCAL position, machine output control is set by
the Output Control knob on the front of the machine. In
the REMOTE position, the machine output control is set
by the remote inputs. This control is not active in
ArcLink
®
modes.
17. POLARITY SWITCH:
Matches the polarity of the wire feeder voltmeter to the
polarity of the electrode.
VANTAGE ® 520 SD