Design and function
Select welding task
099-000097-EW501
14.03.2012
35
5.7.6.5
SpotArc
The TIG SpotArc function is activated with the pulse variant automated frequencies by default, because
this combination produces the most effective results. The user can of course combine the function with
other pulse variants depending on the selected welding process. Pulse time (t1) and pulse break time (t2)
can be set independently, but the spot time (tP) should be much greater than the pulse time in order to
achieve an appropriate result.
Selecting and setting TIG spotArc
Operating
element
Action Result
Signal light
comes on
The spot time can be set for approx. 4 sec. using the Welding parameter
setting rotary dial. (Spot time setting range 0.01 sec. to 20 0 sec.)
Afterwards the display switches back to current/voltage. If the button is
pressed again, the display switches back to the parameter and can be
changed with the rotary dial accordingly. The spot time can also be set in
the function sequence.
Set spot time (tP)
The TIG spotArc process is switched on with pulse variant TIG automated
pulses by default. The user can select other pulse variants:
TIG automated pulses (frequency and balance)
TIG pulses with times, lights up in green/
fast TIG DC pulses with frequency and balance, lights up in red
Figure 5-12
