Filter
Top Products
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.
ACCESSORIES
C-3 C-3
IDEALARC CV-400
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
CONNECTION OF LINCOLN ELECTRIC AUTOMATIC OR SEMIAUTOMATIC
WIRE FEEDERS
WARNING
FIGURE C.2
NA-3 WIRE FEEDER CONNECTION TO THE IDEALARC CV-400
+
-
ELECTRODE
CABLE TO
AUTOMATIC
EQUIPMENT
TO
WORK
NEGATIVE POSITIVE
TO
AUTOMATIC
CONTROL
BOX
NA-3 WIRE
FEEDER
CONTROL
CABLE
21
4
2
BLANK
31
32
75
76
77
GND
77
76
75
32
31
2
4
21
TERMINAL
STRIPS