WIA W67-1, Руководство оператора

Страница: 10 / 28

11 10
Wirefeeder W67 | Operator Manual | Model No W67-40
3 Arc Start
This control can be set to modify arc
starting conditions. For many applications
the control can be set at the mid point.
Rotating the knob clockwise will provide
faster wire acceleration at arc start giving
quicker starts, suitable for applications
such as rapid tack welding.
Rotating the knob anti-clockwise will
slow wire acceleration, providing a softer
start suitable for larger diameter and
aluminium wires.
The range of Arc start value is from 0 to 1.
The Arc start value will be indicated on the
Digital display wire speed.
4 Wire Speed Control
This control sets the speed of the wire
drive motor to provide 2 - 22 metres per
minute of welding electrode wire. Rotate
the control clockwise to increase the feed
speed.
5 Inch Button
Press to feed wire without energising the
welding power source. The wire will feed at
the current wirespeed setting.
6 Latch Select Button and Indicator
Press to select and deselect ‘Latch’
mode. When ‘Latch’ mode is selected,
the operator need close the gun switch
momentarily only to commence welding,
and again momentarily to end welding.
This can help to reduce operator fatigue
during long welding run.
7 Purge
Press Purge to Purge the gas line when the
gas bottle has been changed or the gas
line has been opened. The gas value will
come on without wirefeed or output volts.
8 Voltage Control
Weld Voltage Adjustment Knob for MIG
process.
9 Wirefeeder Settings
Pre Gas Control
Sets the time period of gas flow from gun
switch on until welding commences, and
can be set for 0 – 10 seconds.
Post Gas Control
This sets the time period of gas flow after
welding ceases, and can be set for 0 – 10
seconds.
Spot Time Control
When the setting is other than fully
anticlockwise, the welder will operate for
a short time after each trigger press. Turn
clockwise to increase the weld duration up
to a maximum of 10 seconds.
Burnback Control
This control sets the time period that
welding voltage continues after the gun
switch is released, and wirefeed ceases.
The extra time allows the wire to “burn
back” slightly toward the tip.
When set correctly ‘Burnback’ prevents the
welding wire freezing in the weld pool at the
end of a weld. Adjustment is 0 - 1 second.