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CONNECTING THE LN-8 OR LN-9 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.4.
4. Connect the wire feeder control cable ground lead
to the frame terminal marked .
5. 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.
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.
6. Connect LN-9 wire feeder control jumpers on
Voltage Control board. See LN-9 Operator’s
Manual.
NOTE: The connection diagram shown in Figure C.4
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
inductance as needed).
c. Move the work cable to the positive (+) output
terminal.
d. Connect control cable lead #21 to “+21” on
the terminal strip.
7. Set the OUTPUT CONTROL switch to the
“Remote” position and the OUTPUT TERMINALS
switch to the “Remote” position.
ACCESSORIES
C-8 C-8
IDEALARC DC-655
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FIGURE C.4 - LN-8 OR LN-9 WIRE FEEDER CONNECTION TO THE IDEALARC DC-655
NEGATIVE
POSITIVE
32
31
2
4
GND
21
ELECTRODE CABLE
TO WIRE FEED UNIT
TO WORK
}
POWER SOURCE
N.E.
CABLE
21
A
B
C
}
TO LN-8 OR LN-9
CONTROL
INPUT CABLE PLUG
41
4231
32
75 76
77
21
-
21
+
REMOTE VOLTAGE SENSING LEAD