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B-7
OPERATION
B-7
MAXsa™ 10 CONTROLLER
WELD SEQUENCE
The weld sequence defines the weld procedure from
beginning to end. All adjustments are made through
the user interface.
START OPTIONS
The delay, strike, start and upslope parameters are
used at the beginning of the weld sequence to estab-
lish a stable arc and provide a smooth transition to the
welding parameters. They are described in the follow-
ing:
• ARC DELAY inhibits the wire feed for up to 5 sec-
onds to provide an accurate weld start point.
Typically used in multi-arc systems.
• STRIKE settings are valid from the beginning of the
sequence (Start) until the arc is established. They
control run-in (speed at which the wire approaches
the workpiece) and provide the power to establish
the arc. Typically output levels are increased, and
WFS is reduced during the strike portion of the weld
sequence.
• START values allow the arc to become stabilized
once it is established. Extended start times or
improperly set parameters can result in poor starting.
• UPSLOPE TIME determines the amount of time it
takes to ramp from the start parameters to the weld
parameters. The transition is linear and may be up or
down depending on the relationship between the
start and weld settings.
.
START OPTIONS OPERATION
Pressing the Arc Start/End Options pushbutton will
illuminate the START OPTIONS LED and the Arc
Delay Time parameter will show on the MSP Display.
Use the Mode Select Panel Control to select the
desired delay time. Press the Weld Mode Selector to
exit the Start parameters.
Repeated pressing of the Arc Start/End Options
pushbutton will scroll through the parameters. Turning
the Mode Select Panel Control, while on a parameter
will change its value.
When a Start Option is set to a value other than OFF,
the START OPTIONS LED will blink synchronous with
the WFS or Amps and/or the volts LED located on the
Dual Display Panel prompting the user to enter these
parameters. The parameters that can be set by the
user in the START OPTIONS will be as follows:
ARC DELAY TIME
STRIKE WFS
STRIKE TIME
START WFS/AMPS
START VOLTS
START TIME
UPSLOPE TIME
FGIURE B.6 - WELD SEQUENCE
Output
Strike
Upslope
W
eld
Downslope
Time
Arc Start
Delay
Start
Crater
Burnback
Start
Bu
t
t
o
n
Pressed
W
ire Be
g
in
s
to Feed
W
i
re T
o
u
che
s
Pl
a
t
e
End of Start
Timer
End of
Upslope
St
o
p Button
Pr
e
ssed
End of
Downslope
Endof
Crater
Timer
End of
Burnback
OFF
Arc Delay Time