Lincoln Electric IM910 manual General Description

B-2 OPERATION B-2

GENERAL DESCRIPTION

The LN-15 is a light weight, portable, durable semi- automatic wire feeder.

The LN-15 accommodates spools 8" (200mm) diame- ter up to 4" (100mm) wide.

The domestic feeders comes factory equipped with a K1500-2 Magnum Tweco-compatible style #2-#4 gun bushing. Other K1500 series gun bushings are avail- able as field installed options. European models are factory equipped with a Fast-Mate adapter.

The wire drive is capable of operating in either a "CV" or "CC" mode. A constant voltage (CV) power source is recommended for flux-cored arc welding (FCAW) and gas metal arc welding (GMAW) to obtain code quality results. However, the LN-15 may also be used with a constant current (CC) power source to obtain passable results for non-critical quality applications.

The “dual procedure” mode drops the WFS to 83% of the original set point. The voltage setting remains the same.

•Burn-back is adjustable from 0.0 to 0.25 seconds, with a default of 0.00 seconds.

•The preflow time is adjustable from 0.00 to 25.0 sec- onds, with a default of 0.00 seconds.

•The postflow time is adjustable from 0.0 to 25.0 sec- onds, with a default setting of 0.0 seconds.

The Control Cable Model features remote voltage control with a potentiometer on the front of the feeder. The operation of the voltage control is similar to other feeders having "remote control" kits, such as the LN-

25.While welding, the voltage may be adjusted as desired. The voltage setting is not a "preset" value.

Electrode output is energized in response to the gun trigger by signals sent to the power source via the control cable.

DUTY CYCLE

The LN-15 wire feeders are intended for semi-auto- matic use. The maximum rating of the LN-15 is based upon a 60% duty cycle; 6 minutes of welding followed by 4 minutes of idling within a 10 minute period.

RECOMMENDED PROCESSES

The LN-15 wire drive feeds electrode for various processes as defined below in Table B.1.

The Control Cable Model is suitable for GMAW, GMAW-Pulse, GMAW-STT and FCAW semi-auto- matic applications within the rated duty cycle.

PROCESS LIMITATIONS

•The control cable model is not recommended for SAW, SMAW, GTAW or CAG.

•The control cable model works only with power sources having remote control output.

EQUIPMENT LIMITATIONS

Codes 11033 and higher

•The LN-15 cannot be used with the K1500-4 gun adapter bushing.

OPERATIONAL FEATURES AND CONTROLS

•Remote voltage control at the LN-15.

•Built in flow meter for adjusting shielding gas.

•Cold Feed/Gas Purge switch.

•2 step / Trigger Interlock switch (codes 11033 and above only)

•Digital wire feed speed control.

•Digital display of welding voltage.

•Adjustable preflow and postflow times

•Adjustable burnback times.

•ON / OFF switch (codes 11033 and above only)

TABLE B.1

Process	Wire Diameter Range			Wire Feed Speed Range
GMAW	0.023 - 0.052"	(0.6 - 1.3 mm)	50	- 700 ipm (1.3		- 17.8	m/minute)
FCAW	0.045 - 0.052"	(1.2 - 1.3 mm)	50	- 700 ipm	(1.3	- 17.8	m/minute)
FCAW	1/16 - 5/64"	(1.6 - 2.0 mm)	50	- 400 ipm	(1.3 - 10.2 m/minute)

LN-15 CONTROL CABLE MODEL (CE)