ESAB Warrior 500i CC/CV, Instruction Manual

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6 OPERATION
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© ESAB AB 2013
TIG welding (Live
TIG) Arc air gouging
MMA welding MIG/MAG welding
Wire feed unit
Mobile feed CV
(Constant voltage) Protective ground
Voltage reducing device (VRD)
The VRD function ensures that the open-circuit voltage does not exceed 35 V when welding
is not being carried out. This is indicated by a lit VRD led.
The VRD function is blocked when the system detects that welding has started.
Contact an authorized ESAB service technician to activate the function.
Overheating protection
The welding power source has overheating protection that trips if the temperature becomes
too high. When this occurs, the welding current is interrupted and an overheating indication
lamp is lit.
The overheating protection resets automatically when the temperature has fallen back to the
normal working temperature range.
Arc force
The arc force is important in determining how the current changes in response to a change in
the arc length. A lower value gives a calmer arc with less spatter.
This only applies to SMAW welding.
Inductance
Higher inductance results in a wider weld pool and less spatter. Lower inductance produces
a harsher sound, but a stable, concentrated arc.
This only applies to GMAW welding.
GTAW welding
GTAW welding melts the metal of the workpiece, using an arc struck from a tungsten
electrode that does not itself melt. The weld pool and the electrode are protected by shielding
gas.
"Live TIG-start"
At a "Live TIG-start", the tungsten electrode is placed against the workpiece. When the
electrode is lifted away from workpiece, the arc is struck at a limited current level.