Operating instructions

3 Description of M100 / M110 control
3/3
3.3 Setting other welding parameters
The welding machine and WF case (Fig. 3/2) contain controls to set the following welding
parameters.
Fig. 3/2 Setting options in the welding machine or WF case
3.3.1 Wire burn-back
Trimmer
wire burn-back
infinitely
adjustable:
0 - 250 ms
Setting note:
Wire back-burn set too high: large drops developing on the
wire electrode result in poor ignition properties or the wire
electrode fusing onto the welding nozzle.
Wire back-burn set too low: Wire electrode fuses to the weld
pool.
3.3.2 Gas post-flow time
Trimmer
gas post-flow time
infinitely
adjustable:
0.2 - 10s
The purpose of the gas post-flow is to prevent crater
formation in the welding material by keeping it surrounded
with shielding gas until it solidifies.
3.3.3 Current-less gas test
Key button for
current-less gas
test
This ensures a high standard of safety for the welder by
preventing accidental ignition of the arc.
3.3.4 Inching the wire electrode
Key button for
current-less
inching
With the current off, the wire electrode can be inched into the
tube package without releasing gas.
3.3.5 Wire creep
Wire creep rotary
dial infinitely
adjustable:
0 - 100%
The percentage wire creep rate is dependent on the wire feed
speed selected. The standard factory setting is calibrated to
50%. (e.g.: WF speed = 10m/min ≥ wire creep = 5 m/min)
Advantage: The wire electrode does not reach the workpiece
at full speed. This facilitates reliable, spatter-free ignition.