ESAB RobustFeed AVS Instruction Manual page 30

6 CONTROL PANEL
4-stroke
With 4 stroke, the torch trigger can be released once the arc is established, the power
source/feeder will continue to weld until the trigger is pressed and released again, or the
arc established signal is lost by manually breaking the arc. The trigger will not be locked
unless the arc is established before the trigger is released.
4-stroke
With 4 stroke, the gas pre-flow starts when the welding torch trigger switch is pressed in
and the wire feed starts when it is released. The welding process continues until the
switch is pressed in again, when the switch is released the wire feed then stops the gas
post-flow starts.
Power switch
The power switch (0/I) on the internal panel starts the wire feeder when the feeder is
connected to the power source and the work piece. The power source must be turned
on with the contactor closed.
CC/CV switch
The CC/CV switch is used to set CC or CV mode. CC mode is used for constant current
power sources. CV mode is used for constant voltage power sources. The selected
mode also affects the functions of the wire feeder as shown below:
Mode Display
CC Wire feed speed and arc voltage shown.
While welding, current shown
CV Wire feed speed shown
Circuit breaker, 5 A
This resettable 5-ampere circuit breaker, in series with motor armature, protects the
control board from damage if the motor stalls.
Setting the gas flow
The gas flow is adjusted using the knob on the internal control panel. The present gas
flow rate is given on the gas flow meter above the knob.
NOTE!
The reading on the flow meter scale will only be correct if the wire feeder is in
upright position.
Wire feed speed (Arc voltage control)
The wire feed speed is controlled by the knob for wire feed speed on the front of the wire feeder.
When the wire feeder is connected to a constant voltage (CV) type of power source, the knob for wire
feed speed controls the welding current. Turning the knob clockwise increases the welding current;
turning it counterclockwise decreases the welding current.
When the wire feeder is connected to a constant current (CC) type of power source, the knob for wire
feed speed controls the arc voltage. Turning the knob clockwise increases the arc voltage; turning it
counterclockwise decreases the arc voltage. The actual wire feed speed for any given setting varies
with the arc voltage. Increasing the arc voltage causes an increase in the wire feed speed.
When the CV/CC switch inside the RobustFeed AVS, is set to "CV", the "Preset" wire feed speed will
be shown on the display. The wire speed will not vary with changes in the arc voltage.
When the CV/CC switch is set to "CC", the wire feed speed and voltage will be shown on the display.
The wire speed shown is the speed that will result from the displayed voltage.
0446 680 001
Knob for setting the wire feed speed
Controls the arc voltage / Wire speed feed
increase with increased voltage
Controls the welding current
- 30 - © ESAB AB 2021