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The special HF ignition indicator lights up on the control panel provided that a value
has been specified for the HFt parameter.
If the HFt setup parameter is set to "OFF", no high frequency ignition takes place at the
start of welding. In this case, welding starts with touchdown ignition.
CAUTION!
Risk of injury due to shock caused by electric shock
Although Fronius devices comply with all relevant standards, high-frequency ignition can
transmit a harmless but noticeable electric shock under certain circumstances.
► Use prescribed protective clothing, especially gloves!
► Only use suitable, completely intact and undamaged TIG hosepacks!
► Do not work in damp or wet environments!
► Take special care when working on scaffolding, work platforms, in forced positions
(out-of-position welding), in tight, difficult to access or exposed areas!
Pri
Pre Ignition - delayed ignition with immediate high frequency start
Unit s
Setting range OFF / 0.1 - 1
Factory setting OFF
If a time value is set for the parameter Pri, the welding arc is ignited with a delay corre-
sponding to this value: Press the torch trigger - high frequency is activated for the speci-
fied duration - the welding arc is ignited
r
r (resistance) - welding circuit resistance (in mOhm)
see "Displaying welding circuit resistance r"
L
L (inductivity) - welding circuit inductivity (in microhenry)
see "Displaying welding circuit inductivity L"
Ito
Ignition time-out function - time until safety cut-out following an abortive ignition attempt
Unit s
Setting range 0.1 - 9.9
Factory setting 5
IMPORTANT! The ignition time-out function is a safety function so cannot be deactivated.
A description of the "Ignition time-out" function can be found in the section headed "TIG
welding".
Arc
Arc - arc break watchdog: Time until safety cut-out following an arc break
Unit s
Setting range 0.1 - 9.9
Factory setting 2
IMPORTANT! The arc break watchdog is a safety function and cannot be deactivated. A
description of the arc break watchdog function can be found in the section "TIG welding".
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