
16
5. VOLTAGE/CURRENT TRIM
The arc voltage is controlled with this knob when the WELD PROCESS
selector switch is in the MIG position. The Mig arc voltage can be preset by
pressing the PRESET button and reading the arc volts in the bottom digital
display while rotating this knob.
The arc current is controlled with this knob when the WELD PROCESS
SWITCH is in the TIG or STICK position. The welding current can be preset
in amperes by pressing the PRESET button and reading the current (amps)
in the top digital display while rotating this knob. The average weld current
will be displayed during welding.
For MIG PULSE welding, the arc length (arc voltage) is controlled with this
knob. The WELD PROCESS switch is placed in the MIG position and the
MIG MODE switch is placed in the PULSE position. The TRIM PRESET knob
should be place at the 12 o'clock position as the synergic preset for the wire
feed speed, WIRE TYPE and WIRE DIAMETER chosen by the operator using
the PULSE SELECTION switches. The arc length can then be adjusted by
turning the knob clockwise to increase the arc length or counterclockwise to
decrease the arc.
6. PANEL/REMOTE SWITCH
With this switch in the PANEL position, output voltage in the CV mode and
the output current in the CC mode are controlled by adjusting the VOLTAGE/
CURRENT/TRIM knob on the power source control panel to the desired
output. In the REMOTE position, output is controlled using a remote control
device such as a wire feeder, hand control or foot control.
7. INDUCTANCE TRIM
This control is used only in the MIG process mode and is deactivated in the
TIG, STICK and MIG PULSE modes. Inductance is used to optimize short
circuiting arc performance by changing the current rise and fall time of each
short circuit. This results in improved spatter control, weld bead wetting and
arc stability. The short circuiting Mig arc performance will change from a high
NOTE:
A DuraDrive Wire Feeder is required to
preset wire feed speed.
Figure 2-4. Pulse Control Panel
Preset
Button
Mig Mode
Switch
Panel/
Remote
Current
Voltage
Material Selection
(Pulse)
Wire Diameter
Selector (Pulse)
Weld Process
Switch
Inductance
SECTION 2 DESCRIPTION
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