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B-5
OPERATION
B-5
CV-305
9. WIRE FEEDER VOLTMETER SWITCH
This switch selects the polarity of the wire feeder
voltmeter, if so equipped. When welding electrode
positive (MIG, Outershield and some Innershield
processes) set the switch to "+".
When welding electrode negative (most
Innershield electrodes) set the switch to "-".
This switch has no effect on the welding polarity.
In fact, if the wire feeder being used does not have
a voltmeter, the setting of this switch has no effect.
10. POSITIVE OUTPUT CONNECTION.
+ Output connector is a Magnum Twist-Mate™,
receptacle. Insert a mating Twist-Mate™ plug,
and twist clockwise to secure.
11. LOW INDUCTANCE NEGATIVE CONNECTION.
Output connector is a Magnum Twist-Mate™,
receptacle. Insert a mating Twist-Mate™ plug,
and twist clockwise to secure.
The low inductance connection is typically used
for short arc welding of mild steel, particularly on
thin materials or when using CO
2
shielding gas.
12. HIGH INDUCTANCE NEGATIVE OUTPUT CONNECTION.
Output connector is a Magnum Twist-Mate™,
receptacle. Insert a mating Twist-Mate™ plug, and
twist clockwise to secure.
The high inductance connection is more suitable
for short arc welding heavier weldments or when
using 75% Argon/25% CO
2 shielding gas. This
connection produces a softer arc and a flatter
bead with more wash-in than the low inductance
connection. A spray type transfer is possible with
either connection.
Note: For GMAW processes, and most FCAW
processes, the positive output connection goes
to the wire feeder. One of the negative output
connections goes directly to the work.
13. WIRE FEEDER RECEPTACLE
14-pin MS style receptacle for wire feeder.
Provides connections for auxiliary power, contac-
tor closure, remote output control, wire feeder
voltmeter sense lead, and ground.