Start Options - Lincoln Electric POWER FEED 25M NNS Operator's Manual

POWER FEED™ 25M NNS

START OPTIONS

The Start Options available depend upon the process and weld mode selected.
Process Start Options
SMAW (Stick) ----
Preflow
Time
All GMAW (MIG) Run-In WFS
and FCAW (Flux-
cored)
Start time, WFS
and Volts
GTAW (TIG) ----
END OPTIONS
The End Options available depend upon the process and weld mode selected.
Process Start Options
SMAW (Stick) ----
Spot Timer
Crater Time,
All GMAW (MIG) WFS and Volts
and FCAW (Flux-
cored)
Burnback Time
Postflow Time
GTAW (TIG) Postflow Time
Description
Effect / Range
----
0 – 25.0
seconds
Run-In sets the wire feed speed from the time the trigger is pulled until an arc is
Auto, OFF,
30 in/min to established or 2.5 seconds.
weld WFS
Use run-in for softer arc starts.
The Start Procedure controls the WFS and Volts for a specified time at the begin-
0 – 10.0 sec-
onds ning of the weld. During the start time, the machine will ramp up or
down from the Start Procedure to the preset Welding Procedure.
----
Effect / Range Description
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Sets the length of time for welding when the trigger is pulled. If the trigger is
released before the Spot Timer is complete, welding stops.
This option has no effect in 4-Step Trigger Mode.
0 – 10.0 Crater Procedure controls the WFS and volts for a specified time at the end of
seconds the weld after the trigger is released. During the Crater time, the machine will
ramp up or down from the Weld Procedure to the Crater Procedure.
Auto, Crater is not commonly used with STT processes.
0 – 0.25 The burnback time is the amount of time that the weld output continues after the
wire stops feeding. It prevents the wire from sticking in the puddle and prepares
seconds
the end of the wire for the next arc start.
0 – 25.0 Adjusts the time that shielding gas flows after the welding output turns off.
seconds
Adjusts the time that shielding gas flows after the welding output turns off.
0 – 25.0
seconds
B 20
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OPERATION