OM-2226 Page 33
1
Pulser Control
Pulsing is available only while using
the TIG process, it cannot be se-
lected if the Stick process (see Sec-
tion 5-6) is active. Controls can be ad-
justed while welding.
Press switch pad to enable pulser.
ON
- When illuminated, this LED in-
dicates the pulser is on.
Press switch pad until desired pa-
rameter LED is illuminated.
To turn Pulser off, press and release
switch pad until the On LED turns off.
2
Encoder Control
3
Ammeter
Turn encoder (see Section 5-2) to se-
lect appropriate value for active pulse
parameter. Value selected is shown
on the ammeter (see Section 5-4).
Also, the ammeter LED for the corre-
sponding unit of measure (%, A, s,
Hz) of the active parameter will be il-
luminated.
See Section 5-13 for all Pulser pa-
rameter ranges.
PPS
(Pulses Per Second or Pulse
Frequency) - Control is used to de-
termine appearance of weld bead.
PEAK t
- The percentage of each
pulse cycle that can be spent at the
peak amperage level.
BKGND A
(Background Amps) - Use
Background Amps control to set the
low pulse of the weld amperage,
which cools the weld puddle and af-
fects overall heat input. Background
Amps is set as a percentage of peak
amperage.
4
Pulsed Output Waveforms
Example shows affect changing the
Peak Time control has on the pulsed
output waveform.
.
Peak amperage is set using the
Amperage control (see Section
5-3). Peak amperage is the high-
est welding amperage allowed to
occur in the pulse cycle. Weld
penetration varies directly with
peak amperage.
Application:
Pulsing refers to the alternating rais-
ing and lowering of the weld output at
a specific rate. The raised portions of
the weld output are controlled in
width, height, and frequency, forming
pulses of weld output. These pulses
and the lower amperage level be-
tween them (called the background
amperage) alternately heat and cool
the molten weld puddle. The com-
bined effect gives the operator better
control of penetration, bead width,
crowning, undercutting, and heat in-
put. Controls can be adjusted while
welding.
Pulsing can also be used for filler ma-
terial addition technique training.
5-9. Pulser Control (DX And LX Models)
1
3
2
Peak Amp
Bkg Amp
Balanced
More Time
At Peak
Amperage
More Time
At
Background
Amperage
Pulsed Output Waveforms
Percent (%) Peak
Time Control Setting
(50%)
(80%)
(20%)
PPS
4
Содержание Maxstar 200 DX
Страница 6: ...Notes...
Страница 16: ...OM 2226 Page 10...
Страница 65: ...OM 2226 Page 59 SECTION 8 ELECTRICAL DIAGRAMS Figure 8 1 Circuit Diagram 237 566 B...
Страница 79: ...OM 2226 Page 73 Notes...
Страница 89: ...OM 2226 Page 83 Notes...