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LF-72/74
NOTES
A-8 A-8
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ANALOG MILLER CONTROL CABLE
ADAPTER K2335-1
This Lincoln Electric wire feeder may be mounted to a limit-
ed number of Miller Electric power sources. The Miller power
source must have the amphenol pin definition shown in the
table below for proper operation of the wire feeder.
Operation of Lincoln wire feeders on Miller power sources
may result in lack of high speeds or reduce pull force on high
wire feed speeds. Maximum wire feed speed for the LF-72
operating on a Miller power source is approximately 720ipm.
Be sure the Miller power source provides 24 VAC to the wire
feeder and has overcurrent protection of no more than 15
amps. The power source must not exceed 113VDC peak.
A
B
C
D
I
E
F
G
H
J
K
L
M
N
A
I
H
G
B
F
E
D
C
J
K
N
M
L
W
IRE FEEDERPOWER SOURCE
MILLER POWER SOURCE
Pin Function
A 24 VAC to feeder
B Welding Output Control
C +10VDC to feeder for remote control
D Remote control common
E 0-10VDC from feeder for remote control.
F Current feedback to feeder.
Scaled 0-10V. 1 V = 100 amps.
Referenced to pin D.
G 24 VAC common.
H Arc Voltage feedback to feeder.
Scaled 0-10V. 1 V = 10 Arc volts.
Referenced to pin D.
I
J
K
L
M
N
LINCOLN WIRE FEEDER
Pin Function
I 42 VAC feeder
D Welding Output Control
C Welding Output Control
E Remote Voltage Control ("+" supply, from
power source)
G Remote Voltage Control ("-" supply, from
power source)
F Remote Voltage Control (control signal from
feeder or remote.)
J Reserved for future use.
K 42 VAC to feeder
L Reserved for future use.
N Electrode voltage to power source (67)
Miller is a registered trademark not owned or licensed by The Lincoln Electric Company.