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CONNECTING THE LN-7 TO THE
IDEALARC DC-655 (TERMINAL STRIP)
1. Set the Idealarc DC-655 POWER toggle switch to
the OFF (0) position.
2. Disconnect main AC input power to the Idealarc
DC 655.
3. Connect the wire feeder control cable leads to the
Idealarc DC-655 terminal strip as shown in Figure
C.3.
4. Connect the wire feeder control cable ground lead
to the frame terminal marked .
NOTE: The Idealarc DC-655 must be properly
grounded.
5. PERFORM THIS STEP ONLY IF THE LN-7 IS
EQUIPPED WITH A METER KIT.
Extend wire feeder control cable lead #21 so it can
be connected directly to the work piece.
a. Make a bolted connection using AWG #14 or
larger insulated wire. Tape the bolted connec-
tion with insulating tape.
NOTE: If the work cable length is less than 25 feet
and the connections to the work piece are
secure, then wire feeder control cable lead
#21 can be connected directly to the DC-
655 terminal strip.
b. An S-16586-X remote voltage sensing work
lead is available for this purpose.
c. Keep the #21 lead electrically separate from
the work cable circuit and connection.
d. Tape the #21 lead to work cable for ease of
use.
NOTE: The connection diagram shown in Figure
C.3 shows the electrode connected for
positive polarity. To change polarity:
a. Set the IDEALARC DC-655 POWER toggle
switch to the OFF (0) position.
b. Move the electrode cable to the negative (-)
output terminal (High inductance or low induc-
tance as needed).
c. Move the work cable to the positive (+) output
terminal.
d. Connect control cable lead #21 to “+21” on
the terminal strip.
ACCESSORIES
C-7 C-7
IDEALARC DC-655
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