Pulse Control - Miller Syncrowave 200 Manual Del Propietário Y Guía

3-6. Pulse Control

PPS
OM-225 389 Page 18
2
10.0
4
1
3
1 Ammeter
2 Voltmeter
3 Encoder Adjustment Control
4 Pulse Control
Pulsing is available only while using
the TIG process, it cannot be se-
lected if the Stick process (see Sec-
tion 3-4) is active. Controls can be
adjusted while welding.
Press Pulse push button to activate
pulser function.
ON - When illuminated, this LED
indicates the pulser is on.
Turn Encoder to set pulses per sec-
ond. See Section 3-12 for Pulse pa-
rameters. The selected pulse value
is displayed on the ammeter, and
[PPS] is displayed on the voltmeter
as long as the pulse function is ac-
tive.
Press Pulse control button to turn
pulse function off.
Press Main Amps or Adjust control
button to exit pulse control screen
and leave pulser activated.
Application:
Pulsed TIG welding involves
switching the weld output between
a high or peak amperage, and a low
or background amperage at a con-
trolled rate of pulses per second.
Pulsing the weld output from a high-
er peak amperage, to a lower back-
ground amperage, lowers the aver-
age welding amperage, which can
reduce heat input and improve weld
puddle control.
Set the number of pulses per sec-
ond based on the application. Puls-
ing rates of 1 to 2 pps can improve
the timing and amount of filler metal
that are added to the weld puddle,
improving weld bead consistency.
Filler metal should be dipped, or
added to the weld puddle when the
output pulses to the high, or peak
amperage.
Fast pulsing rates can improve the
bead appearance of welds made
without filler, or allow filler to be con-
tinuously added to the weld puddle
without any dipping action. The
pulse rate should be adjusted along
with travel speed to obtain desired
weld bead appearance.