Ignition And Mode Settings; Ignition Parameters - Fronius MagicWave 190 Operating Instructions Manual

Ignition and mode settings

Ignition parame-
HF ignition
ters
on / off / Touch HF / External
Factory setting: on
on
High frequency ignition is activated when welding is started
off
No high-frequency ignition when welding is started.
In this case, welding starts with touchdown ignition.
Touch HF
The welding process is initiated by briefly touching the workpiece with the tungsten elec-
trode. The high frequency ignition occurs after the set HF ignition delay time has elapsed.
External
Start with external ignition aid, e.g. plasma welding
The HF ignition indicator in the status bar on the display lights up as long as HF ignition
has been set to On.
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
RF ignition delay time
Duration until the high frequency ignition takes place after touching the workpiece with the
tungsten electrode.
0.1 - 5.0 s
Factory setting: 1.0 s
Reversed polarity ignition
(MagicWave power sources only)
To optimise the ignition sequence in TIG DC welding, the polarity is reversed briefly when
welding starts. Electrons emerge from the workpiece and strike the tungsten electrode.
This results in rapid heating-up of the tungsten electrode - which in itself is an essential
precondition for optimum ignition performance.
off / on
Factory setting: off
96
CAUTION!
(out-of-position welding), in tight, difficult to access or exposed areas!