CONNECTION OF LINCOLN ELECTRIC WIRE FEEDERS
WARNING
Shut off welder before making any electrical connections.
Connection of LN-25 to the Wire Feed Module
The LN-25 with internal “COLD TIP” contactor requires the K444-2 Control Cable for voltage control at the feed- er.
The LN-25 with internal “Cold Tip” Contactor can be operated without a control cable (Volt sensing mode) if voltage control at the wire feeder is not desired.
See the appropriated connection diagrams in the Diagrams section.
a)Shut off the welder.
b)Connect the electrode cable from the LN-25 to the positive stud of the welder. Connect the work cable to the CV negative stud of the welder. (NOTE: reverse the connections for negative electrode polari- ty.)
c)For LN-25’s with internal contactor, connect the K444- 2 remote voltage control cable from the LN-25 to the14-pin receptacle on the control panel.
d)Attach the single lead from the front of the LN-25 to the work using the spring clip on the end of the lead. This is a control lead to supply current to the wire feeder motor; it does not carry welding current. Set the polarity switch on the LN-25 to the proper polarity.
e)Set the “Current Range Selector” switch to the “190- 120” position for most common processes, this may be changed if a different arc characteristic is pre- ferred.
f)Set the “LOCAL/REMOTE” Control switch to the “REMOTE” position. If operating an LN-25 with inter- nal “Cold Tip” Contactor but without the K444-2 Remote Voltage Control Cable set the “Local/Remote” Control Switch to the “Local” position.
g)Set the “IDLER” switch to the “HIGH” position. The “AUTO” position may be used with some high current processes.
Connection of the LN-7, LN-7 GMA to the Wire Feed Module
Requires K584-(L) input cable, K864 adapter and optionally the K857 for remote control. See the con- nection diagram in the Diagrams section.
a)Shut the welder off.
b)Connect the electrode cable from the LN-7 to the positive stud of the welder. Connect the work cable to the CV negative stud of the welder. (NOTE: Reverse the connections for negative electrode polarity.)
c)Connect the LN-7 per the instructions on the appropriate connection diagram.
d)Set the “Current Range” switch to the “190-120” position for most common processes, this may be changed if a different arc characteristic is desired.
e)Set the “LOCAL/REMOTE” control toggle switch to “REMOTE”.
f)Set the “IDLER” switch to the “AUTO” position. The “HIGH” position may be required when used with some low current processes.
Connection of the LN-23P to the Wire Feed Module
Requires the K350-1 adapter kit. Adapter kit provides an isolated trigger voltage and allows connection of two wire feeders. See connection diagram in the Diagrams section.
a)Shut the welder off.
b)Connect the electrode cable from the LN-23P to the CV negative output stud of the engine welder. Connect the work cable to the positive output stud.
c)Mount K350-1 adapter per instructions included with adapter.
d)Connect LN-23P per instructions on appropriate connection diagram.
e)Connect control lead marked “21” to work connec- tion. Refer to connection diagram in Diagrams section for routing instructions and wire size.
f)Set the “Current Range Selector” switch to the “190-120” (middle position) for most common processes, this may be changed if a different arc characteristic is preferred.
g)Set the “LOCAL/REMOTE” control toggle switch to “REMOTE”.
h)Set the idler switch to the “AUTO” position. The “HIGH” position may be required when welding with low current processes.
