Accessories, See the topic, Connecting the na-3 [na-5] to the – Lincoln Electric IDEALARC SVM136-A User Manual

Page 25: Cv-400, Automatic wire feeders

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ELECTRIC SHOCK can kill.

• Only qualified personnel should per-

form this maintenance.

• Turn the input power OFF at the dis-

connect switch or fuse box before
working on this equipment.

• Do not touch electrically hot parts.

• Insulate yourself from work and ground.

• Always wear dry insulating gloves.

Auxiliary power for wire feeder operation is available at
both a 14-pin amphenol and at terminal strips with
screw-type connections located behind the hinged con-
trol panel on the front of the machine. The 14-pin
amphenol can provide both 115 VAC (pins A and J) and
42 VAC (pins I and K). The terminal strip provides only
115 VAC (terminals 31 and 32). The two circuits are iso-
lated, and each is protected by a 10A circuit breaker.

NOTE: When using a CV-400 with wire feeders, there
may be a small spark if the electrode contacts the work
or ground within a few seconds after releasing the trig-
ger. With some wire feeders, when the electrical inter-
lock is in the ON position the arc can restart if the elec-
trode touches the work or ground during these few sec-
onds. Refer to K828-1 capacitor discharge circuit ear-
lier in this section.

The following descriptions show how to connect the
wire feeders using the terminal strip.

AUTOMATIC WIRE FEEDERS

CONNECTING THE NA-3 TO THE
IDEALARC CV-400

1. Set the CV-400 POWER toggle switch to the OFF (0)

position.

2. Disconnect main AC input power to the CV-400.

3. Connect the wire feeder control cable leads to the

CV-400 terminal strip as shown in Figure C.2.

4. Connect the wire feeder control cable ground lead to

the frame terminal marked .

NOTE: The CV-400 must be properly grounded.

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