Fronius TransTig 2200 Instructions De Service page 163

Available set-up F-P ..... Frequency-pulsing ... (pulsing frequency) ... OFF / 0.20 Hz to 2.00 kHz
parameters
(continued)
The pre-set pulsing frequency is also used for the reduced current I
Important! If F-P is set to "OFF", the set-up parameters dcY and I-G (described below)
cannot be selected.
dcY ..... Duty cycle ... Where a pulsing frequency has been set, ratio of pulse duration to
I-G ...... I (current)-Ground ... (background current) ... 0 to 100 % of main current I
t-S ...... time-Starting ... (starting-current time) ... OFF / 0.1 to 9.9 s, factory setting: 0
The starting-current time t-S specifies the duration of the starting-current phase I
Important! The set-up parameter "t-S" only applies in 2-step mode. In 4-step mode, the
duration of the starting-current phase I
t-E ...... time-End ... (final-current time) ... OFF / 0.1 to 9.9 s, factory setting: 0
The final-current time t-E specifies the duration of the final-current phase I
Important! The set-up parameter t-E only applies in 2-step mode. In 4-step mode, the
duration of the final-current phase I
"TIG operating modes").
I
Fig.28 2-step mode: Starting-current and final-current time
Legend:
GPr ....... Gas pre-flow
I ........... Starting current
s
t ........... Starting-current time
s
t
up
Factory setting: OFF
Pulsing status indicator: Remains lit up as long as a value has been specified for
the "HFt" parameter.
background-current duration .... 10 to 90 %, factory setting: 50 %
Factory setting: 50 %
I
S
GPr t t
S up
......... Upslope
is controlled manually from the torch trigger.
s
is controlled manually from the torch trigger (see:
E
I
1
I ........... Main current
1
t ....... Downslope
down
I ........... Final current
E
t ........... Final-current time
E
55
.
2
1
.
s
.
E
I
E
t
t t
down E