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Special functions and options
Arc break watch-
If the arc breaks and no current starts to flow again within a time specified in the Setup
dog function
menu, the power source cuts out automatically. The service code "no | Arc" appears on the
control panel.
To start the welding process again, press any key on the control panel or the torch trigger.
The settings for the arc break watchdog setup parameter are described in the "Setup
menu: level 2" section.
Ignition time-out
The power source has the Ignition time-out function.
function
Once the torch trigger is pressed, gas pre-flow begins immediately. Ignition then begins. If
no arc appears within the time specified in the Setup menu, the power source cuts out au-
tomatically. The service code "no | IGn" appears on the control panel.
To try again, press any key on the control panel or press the torch trigger.
The settings for the Ignition time-out parameter (ito) are described in the "Setup menu: lev-
el 2" section.
TIG pulsing
The welding current set at the start of welding is not always ideal for the welding process
as a whole:
-
-
The TIG pulsing function (TIG welding with pulsing welding current) offers a remedy:
a low ground current I-G rises steeply to the significantly higher pulse current I1 and, de-
pending on the set dcY (duty cycle) time, drops back to the ground current I-G.
In TIG pulsing, small sections of the welding location melt quickly and then solidify again
quickly.
In manual applications using TIG pulsing, the filler wire is applied in the maximum current
phase (only possible in the low frequency range: 0.25 - 5 Hz). Higher pulse frequencies are
mainly used in automatic mode to stabilise the arc.
TIG pulsing is used for out-of-position welding of steel pipes or when welding thin sheets.
How TIG pulsing works:
56
if the current is too low, the base material will not melt sufficiently,
if overheating occurs, the liquid weld pool may drip.
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Table of Contents
Troubleshooting
