Connection Of Lincoln Electric Wire Feeders - Lincoln Electric BIG RED 500 Service Manual

AA-8
CONNECTION OF LINCOLN ELECTRIC
WIRE FEEDERS
WARNING
Shut off Welder before making any electrical con-
nections.
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The LN-15 Across-the-Arc model, LN-25
®
out an internal contactor, and LN-25
used with the BIG RED ® 600.
1. Shut the welder off.
2. For electrode Positive, connect the electrode cable
from the wire feeder to the "+" terminal of the welder
and work cable to the "-" terminal of the welder. For
electrode Negative, connect the electrode cable
from the wire feeder to the "-" terminal of the welder
and work cable to the "+" terminal of the welder.
3. Set the CV/CC mode of the wire feeder to CC.
(Refer to wire feeder operator manual for details on
setting the wire feeder in the CC mode and for set-
ting welding parameters).
4. Attach the single lead from the front of the wire feed-
er to work using the spring clip at the end of the lead.
This is a sense lead to supply current to the wire
feeder motor; it does not carry welding current.
5. When the gun trigger is closed, the current sensing
circuit will cause the wire to begin to feed and the
welding process is started.
NOTE: The LN-25 ® (K444-1) Remote Control Module
(K431) and Remote Cable (K432) cannot be
used with the BIG RED
priate connection diagram in Section F of the
Operatorʼs Manual.
BIG RED™ 600
INSTALLATION
with or with-
®
® PRO may be
® 600. See the appro-
FIGURE AA-1
LN-15™ ACROSS THE ARC
Electrode
LN-25™, LN-25™ PRO
Wor k
BIG RED ® 500/600
WARNING
If you are using an LN-25
tactor, the electrode will be energized when the
BIG RED ® 600 is started.
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The Wire Feeder sensor has full OCV potential
between spring clip and work return. Turn machine
off when attaching spring clip.
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Lincoln Electric does NOT recommend constant
current semiautomatic welding for applications
which need to meet specified weld metal chemical
or mechanical property requirements or weld qual-
ity requirements.
------------------------------------------------------------------------
AA-8
without an internal con-
®
Work clip