Lincoln Electric POWERTEC i250C STANDARD Operator's Manual page 17

Table 3 Wave Controls
Table 4 Process start and end parameters
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Parameter
Parameter
15
Definition
Pinch – controls the arc characteristics during
short-arc welding. Increasing Pinch value results in
a crisper arc (more spatter) while decreasing
provides a softer arc (less spatter).

Regulation range: from -10.0 to +10.0.

Default value: 0.
ARC FORCE - the output current is temporarily
increased prevents the electrode from sticking and
facilitates the welding process.
Lower values will provided less short circuit current
and a softer arc. Higher settings will provided a
higher short circuit current, more forceful arc and
possibly of more spatter.

Default value: 0.

Regulation range: from -10.0 to +10.0
HOT START - percentage regulation of increasing
nominal current value during arc start with
electrode. It cause temporarily increased of output
current and made easy arc start with electrode.

Default value: +5.

Regulation range: from 0 to +10.0.
This parameter is only for SMAW.
Definition
Torch trigger mode (2-step / 4-step) - change
the function of the torch trigger.

2 Step trigger operation turns welding on and
off as direct response to the trigger. Welding
process starts when the torch trigger is press.

4-Step mode allows to continue welding,
when the torch trigger is released. To stop
welding, the torch trigger should be pressed
again.4-step model facilitates to make long
welds.

Default settings: 2-step
Run-in WFS – sets the wire feed speed from
the time the torch trigger is pressed until an arc
is established.

Regulation range: from 1,49 m/min (59
in/min) to 3,81 m/min (150 in/min).

Default settings for non-synergic mode: OFF.

Default settings for synergic mode: AUTO
mode.
Burnback Time – amount of time that the
welding is continued after the wire stops
feeding. It prevents the wire from sticking in the
puddle and prepares the end of the wire for the
next arc ignition.

Regulation range: from OFF to 0,25 seconds.

Default settings for non-synergic mode:
0,07s.

Default settings for synergic mode: AUTO
mode.
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