Lincoln Electric IM734 LN-15 WIRE FEEDER - Manual (Page 14)

B-3 OPERATION B-3
LN-15 CONTROL CABLE MODEL
OPERATIONAL FEATURES AND CONTROLS
• Voltage control at the LN-15.
• Built in flow meter for adjusting shielding gas.
• Cold Feed/Gas Purge switch.
• Digital wire feed speed control.
• Digital display of welding voltage.
• Adjustable preflow and postflow times
• Adjustable burnback times.
CASE FRONT CONTROLS
CONTROL CABLE MODEL
(See Figure B.1)
1. WIRE FEED SPEED DISPLAY
The Wire Feed Speed display shows the rate the
LN-15 will feed electrode during welding. The
default units are inches/minute. The wire feed speed
is calibrated to within ±2%.
2. VOLTAGE DISPLAY
The voltage display shows the average arc voltage
during welding. The average voltage will continue to
be shown for 5 seconds after the end of the weld.
When not welding, the display is "- - - ". The voltage
is calibrated to ±2% over a range of 10 to 45 volts.
A minus sign "-" will appear when welding with elec-
trode negative welding procedures.
** For control cable models, the value shown is not
a "preset" voltage.
FIGURE B.1
1 2
3 4
5 6
3. WIRE FEED SPEED CONTROL KNOB
The Wire Feed Speed knob is a 3-1/2 turn poten-
tiometer that adjusts of the rate of feeding elec-
trode.
4. VOLTAGE CONTROL KNOB
The voltage knob is present only on Control Cable
models of the LN-15. Adjusting the voltage knob
varies the power source welding voltage output.
The value displayed is not a "preset" voltage. Only
actual average arc voltage is shown on the voltage
display.
5. TRIGGER CONNECTOR
5 Pin Receptacle is used for connecting the trigger
lead from the welding gun to the LN-15 control cir-
cuitry.
6. GUN RECEIVER BUSHING
The K1500-2 gun receiver bushing included with the
LN-15 is usable with gun and cable assemblies with
Tweco #2, #3 and #4 style connectors.
DUAL PROCEDURE
The LN-15 supports a special "dual procedure" mode.
When activated, the wire feed speed is reduced to
83% of the set value, but no less than 50
inches/minute (1.27 m/min).
A Magnum 400 DP gun or equivalent is required to
activate the 83% dual procedure mode.