3
Function specification
3/6
3.3
Function sequence of TIG non-latched operation with
UP/DOWN-SLOPE
E1
Rotary switch in the position (non-latched with slope)
N1
Changeover switch in the position (HF ignition on)
1st step:
•
Operate the torch trigger.
•
The gas pre-flow time passes.
•
HF ignition pulses jump from the electrode to the workpiece, the arc ignites.
•
The welding current flows and immediately assumes the value set for the ignition current I
s
.
•
HF is switched off.
•
The welding current increases with the gradient set (UP-SLOPE) to the welding current I
1
.
2nd step:
•
Release the torch trigger.
•
The welding current falls with the current gradient set (DOWN-SLOPE) to the end-crater current
I
E
(minimum current).
•
The welding current reaches the end-crater current I
E
the arc extinguishes.
•
The gas post-flow time set begins.
I
S
I
1
I
E
Down-Slope
Up-Slope
t
Release torch trigger
(2nd step)
W
elding current
Gas pre
flow time
Press torch trigger
(1st step)
Gas post-
flow time
Fig. 3
Non-latched function sequence with Slope
Содержание inverter TIG 150 DC
Страница 46: ...13 Schaltpl ne Circuit Diagrams 13 1 13 1 inverter TIG 150 DC Schaltpl ne befinden sich ebenfalls im Ger t...
Страница 47: ...13 Schaltpl ne Circuit Diagrams 13 2 13 2 inverter TIG 200 DC powerSinus...
Страница 48: ...13 Schaltpl ne Circuit Diagrams 13 3 13 3 inverter TIG 200 DC powerSinus power K hlmodul...
Страница 49: ...13 Schaltpl ne Circuit Diagrams 13 4 13 4 inverter TIG 250 300 DC...
