Jasic JT-200D, Operator'S Manual

Page: 17 / 36

higher frequency to the peak pulsed current with lower
frequency, some special welding requirements can be met.
Complicated complex waveform DC pulsed welding can be
obtained by selecting the operation mode 18/19 or self-
programming in pulsed welding mode. A typical waveform of
complex waveform DC pulsed welding (operation mode 18)
is showed in the above figure, in which, Ib and Ip stand for
the base current and peak current in pulsed welding mode
respectively. Id ‘s value is equal to that of the pilot arc
current, but it has no sense of pilot arc current, and it can be
considered as secondary base current. T2 stands for the
period of the secondary pulse (LF), and here in this example
T2 is 200ms. In operation mode 19, the period of the
secondary pulse (LF) can be changed at any moment by
adjusting the upslope time.
TIG operation mode
20 TIG operation modes are available for this machine, in
which 0-15 cannot be amended by users, and 16-19 can be
amended. If you want to amend the TIG operation modes,
please refer to the appendix Programming Guide for Users
(TIG mode).
TIG operation mode should be selected according to users’
technical requirements. All the 20 TIG operation modes for
this machine are listed in the table TIG operation modes
below.
TIG operation modes
!
Mode no. Operation
Torch trigger
operation and
current curve
0
Follow mode:
①
Push the torch trigger:
arc is ignited and current
rises to the pre-set value.
②
Release it: arc stops.
1
1T/Spot welding mode:
①
Push the torch trigger:
arc is ignited and current
rises to the pre-set
value.
② When the spot welding
time is up, current drops
gradually, and arc stops.
Note: Spot welding time is
1/10 of the upslope time.
2
Standard 2T mode:
① Push the torch trigger:
arc is ignited and current
rises gradually.
② R e l e a s e t h e t o r c h
trigger: current drops
gradually, and arc stops.
③ If the torch trigger is re
operated again before arc
stops, the current will
gradually rise again, to
status
② .
3
Double operation 2T
mode:
①
Push the torch trigger:
a r c i s i g n i t e d a n d
current rises gradually.
The torch trigger can be
released at any time.
②
Push it again: current
drops gradually, and arc
stops. The torch trigger
can be released at any
time.
③
If the torch trigger is re
operated again before
arc stops, the current
will gradually rise again,
to status
②
.
16
!
!
!
!
!
Torch trigger operation notes Torch trigger operation notes Torch trigger operation notes Torch trigger operation notes
Push the torch
trigger. Release the torch
trigger
.
Push the torch
trigger and then
release it at any
time.
Release the torch
trigger and then
push it at any time.
Push and release
the torch trigger
within 0.5s, or
release and push
the torch trigger
within 0.5s.
Push the torch
trigger twice within
0.5s, or release the
torch trigger twice
within 0.5s.