Analog Control Cable Connections - Lincoln Electric LF-72/74 Service Manual

A-7
INSTALLATION
ANALOG CONTROL CABLE
CONTROL CABLE CONNECTIONS
• All control cables can be connected end to end to
extend their length.
The control cable connecting the wire feeder to the
power source is specially made for the welding envi-
ronment.
The wire feeder power requires overcurrent protection.
Connect the wire feeder only to power sources with
overcurrent protection of no more than 15 amps.
POWER SOURCE
J A
K
I
B
H
N L
C
G
M
D
F E
PIN FUNCTION
A Unused
B Reserved
C Welding Output Control
(trigger from feeder)
D Welding Output Control
(trigger from feeder)
E Remote Voltage Control
("+" supply from feeder or remote)
F Remote Voltage Control
(control signal from feeder or remote)
G Remote Voltage Control
("-" supply from feeder or remote)
H Reserved
I 42 VAC
J Reserve for Future Use.
K 42 VAC
L Reserve for Future Use.
M Unused
N Electrode voltage from feeder
Do not use more than 100 ft (30.5 m) of control cable
between the wire feeder and power source.
LF-72/74
WIRE FEEDER
A J
K
B
I
N
C L
H
M G
D
E
F
LEAD#
-------
-------
2
4
77
76
75
41
42
-------
67
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