Ignition Time-Out Function; Arc-Break Watchdog Function; Tig Pulsing - Fronius TransTig 2200 Instructions De Service

Ignition time-out For details of how to adjust the set-up parameter Ignition Time-Out (Ito), please refer to
function the section headed "The set-up menu: Level 2" - sub-section "TIG set-up parameters".
If no arc ignites before the end of the period specified in the set-up menu, the power
source cuts out automatically and the error message "no|IGn" appears on the control
panel.
"E55" is displayed on the TIG JobMaster torch.
To make another attempt to achieve ignition, press the torch trigger again.
To dismiss the "no|IGn" message:
-
For details of how to adjust the "Arc-break watchdog function" set-up parameter (Arc),
Arc-break
please refer to the section headed "The set-up menu: Level 2" - sub-section "TIG set-up
watchdog
function parameters".
The power source cuts out automatically if:
-
-
The message "no|Arc" appears on the control panel.
To make another attempt to achieve ignition, press the torch trigger again.
To dismiss the "no|Arc" message:
-

TIG pulsing

The diagram below illustrates TIG pulsing in cases where the DC welding process has
been selected.
For details of how to adjust the parameters referred to here, please see the section
headed "The set-up menu: Level 1" - sub-section "TIG set-up parameters".
I
Fig.21 TIG pulsing - chronology of the welding-current curve
Legend:
-
-
-
-
-
Press the Store button (13)
the arc breaks
no current starts to flow within the time-span specified for "Arc"
Press the Store button (13)
I
1
I
S
I ........... Starting current
S
I ........... Final (i.e. "end") current
E
t ......... Upslope
Up
t ...... Downslope
Down
F-P ....... Pulsing frequency (1/F-P =
time interval between 2 pulses)
1/F-P dcY
t
up
- dcY ....... Duty cycle
- I-G ........ Background current
- I ........... Main current
1
39
I
E
t
t
down