B-2
OPERATION
case Front controls
Wire Feed Speed Digital Display
The LN-25X™ has a digital display that shows the wire feed
speed. This display is also capable of displaying amperage and
the setup menu.
Wire Feed Speed Knob
Use the Wire Feed Speed Knob to set the rate of wire feed speed.
The wire feed speed will be displayed on the Wire Feed Speed
Digital Display. During CV operation, the wire feed speed will
remain a constant value, independent of arc voltage changes, as
along as the arc voltage does not drop below the values per the
following table.
Voltage Digital Display
The LN-25X™ has a digital display that shows the voltage
between electrode and work. This display is also capable of
displaying the setup menu.
Voltage Knob
Use the Voltage Knob to set the voltage when connected to a
CrossLinc™ Power Source, otherwise the display will show
dashes. The voltage will be displayed on the Voltage Digital
Display. During CV operation, the voltage will remain stable while
welding.
83% Wire Feed Speed
The 83% wire feed speed reduces the wire feed speed to 83% of
the original set value when activated. For example, if the original
wfs = 200 in/min, the feeder will regulate to 0.83 x 200 = 166
in/min.
The 83% trigger requires a gun with a dual procedure switch.
This feature is often useful when welding pipe, and a “cooler”
procedure is required on the bottom portion.
Thermal LED, Motor Overload
The thermal light illuminates when the wire drive motor draws too
much current. If the thermal light illuminates, the wire drive will
automatically shutdown for up to 30 seconds to allow the motor to
cool. To start welding again, release the gun trigger, inspect the
gun cable, liner (and conduit). Clean and make repairs as
necessary. Start welding again when the problem has been safely
resolved.
For best results, keep the gun cable and conduit as straight as
possible. Perform regular maintenance and cleaning on the gun
liner, conduit and gun. Always use quality electrode, such as L-50
or L-56 from Lincoln Electric.
CV Operation
Minimum Arc
Volts
Maximum WFS
(Standard Torque)
Maximum WFS
(Extra Torque)
15 V
400
220
17 V
450
250
21 V
570
300
24 V
650
350
27 V
700
400
LN-25X™
1
3
9
12
4
8
7
5
2
10
11
Item Description
1
Wire Feed Speed Digital Display
2
Wire Feed Speed Knob
3
Voltage Digital Display
4
Voltage Knob
5
Thermal LED
6
CrossLinc™ LED
7
Wire Feed Speed LED
8
Amperage LED
9
Voltage LED
10
5 Pin Gun Trigger Connector
11
Work Sense Lead
12
True Voltage Technology (TVT)
6
