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G-6
¤¤
SCHEMATIC - COMPLETE MACHINE - CODES ABOVE 11140 (G5366)
EN-170
G5366
LN
-25
(A
CR
OSS T
H
E AR
C)
MAC
HI
N
E SC
HEM
ATIC
NONE
G4198-
1
M
. D
IDI
ON
M
. D
IDI
ON
DO NO
T
SC
AL
E
T
HIS DR
A
WING
D
RAWN
BY:
DESIG
N
I
NFO
RMATI
ON
ENG
I
NEER:
AP
PRO
VED
:
REFER
ENCE:
EQ
UIP
M
ENT
TYPE:
SUBJECT:
SCA
L
E:
M
ATER
IAL
DI
SP
OS
ITI
ON:
APPR
OV
AL
DATE
:
PROJ
ECT
NU
M
BER:
NA
CRM36946
1
PAGE ___ OF
___
1
E
NGI
N
EE
RI
NG
CO
NT
RO
LLE
D
MA
NU
FA
CT
URE
R:
No
DOCU
MENT
NUMB
ER:
DOCUMENT
REVIS
ION:
THIS DOCUMENT CONTAINS PROPRIETAR
Y
INFORMATION OWNED B
Y
LINCOLN GLOBA
L, INC.
AND MA
Y
NOT BE DUPLICATED, COMMUNICATED
TO O
THER PARTIES OR US
ED FOR
AN
Y
PURPOS
E WITHOU
T
THE EXPRES
S WRIT
TEN PERMISSION
OF LINCOLN GLOBAL, INC.
PRO
PRIETARY & C
ONFIDENTIAL:
A
10/4/2004
N
EW
CHA
NGE
D
ETAIL:
t
MAT
ERI
A
L TO
L
ER
ANC
E ("
"
) TO A
GR
EE
WITH
PU
B
LI
SH
ED
ST
ANDARD
S.
ON A
LL
AN
GL
E
S I
S ± .5 OF
A D
E
GR
EE
ON
3
PLACE
D
E
CIM
ALS
IS
± .
002
ON 2
PL
AC
E D
ECIM
AL
S I
S ± .02
UNLESS OTHERWISE SPECIFIED TOLERANCE:
M
ANUF
ACTURING TO
L
ER
ANC
E
P
ER
E
2056
S
O
L
ID
E
D
G
E
G5366
LN-25 ACROSS THE ARC MODEL
J14
C
AVI
TY
NU
MBE
RIN
G SEQ
UENCE
(
COMPONENT
S
IDE OF
P
.C.
BO
ARD
)
J1
6
5
10
1
3
4
1
2
J3
9
8
16
1
4
6
1
3
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
COLOR CODE
B -
BLACK
WHITE
R -
RED
U -
BLUE
J2
CO
NT
A
CT
OR
300A 60%
WORK
CLIP
A
D
C
B
E
J3
552
553
GAS
S
OL
EN
OI
D
690
541
539
691
TRI
GGER
CONNE
CT
OR
578
507
523
509
621
522
MOD
E
500
WI
R
E F
EE
D
SPEED
CO
NT
R
OL
P
OT
E
NTIOM
ET
ER
21
MOT
O
R /
GEARBOX
TA
C
H.
67
7
2
1
8
4
3
W
B
B
J2
INP
UT
ELE
CT
RODE
CABLE CONNE
CTI
ON
GUN TRIGGER
INPUT
.0047
/.
005
mf
d,
1400VDC
1M ohms
6
5
GND-S2
1
2
3
MO
V
AS
BL
Y
1.9VDC @ 50 in/min
20.1VDC @ 700 in/min
8sec average Current limit
=3.5Amps
(Limitissoftwareset)
MeasureBtoU
130 Hz @ 50 in/min
1.85 kHz @ 700 in/min
13
.5VDC
T
ach S
up
pl
y
4.25 VDC when gas flowing
Coilmeasures 21 ohms
PWM controlled
GasPurge
ColdInch
Bussbar from input
stud tocontactor
R
U
C
OM
P
OT
S
up
pl
y
W
ip
er
Wiper toCOM
5VDC at 700 ipm
0VDC at 50 ipm
10K
Ohms
Coilmeasures 4.4ohms.
0VDC Open
3.0VDC Closed
12 VDC coil
PWM Controlled
Model
Ranger 8,9
Classic
Ranger 250, 305
Commander 300,400,500
(Common Analog
Controls)
V350
(Common Digital
Controls)
DC
-
400, 600
Square Wave TIG
300/355
Miller Inverters
STT II
K
449
Across the Arc
Recommended
all CV operation.
Recommended for CV
operation. (Wi
re
Feed Module
Required)
Recommended for CV
operation.
Recommended for
CV operation.
Not recommended
for use when
pulse welding.
Recommended
for CV and CC
operation.
Not recommended
for CC operation
because the
customer may
experience short
contactor life
from
inductive nature of
the power source.
Not recommended
with high frequency
TIG starting.
Recommended
for CV voltage
sense
operation.
Not
recommended
for use when
pulse welding.
Not recommended
for STT operation.
Note:
Most semiautomatic wire
welding processes
perform better using
constan
t voltage power
sources. Be sure the
proper power source is
used for your application.
Contactor life may be
shortened in applications
using CC machines with
high OCV.
Wire Drive
Circuit
Positive
Voltage
Feedback
Input
Voltage
Protection
Contactor
WFS
Control
Circuit
Gun Trigger
Circuit
Inch/Purge/Mode
Input Switches
Gas Solenoid
Circuit
Mo
t
or
-
Gas S
ol
en
oi
d+
Gas S
ol
en
oi
d-
Ta
ch C
OM
J
2-
1
LN-2
5 F
EEDH
EAD
P.C. BOARD
512
500
Vin
-
+
+Vin
632
555
631
633
Ta
chS
ig
na
l
MOTOR SUPPLY
VOLTAGE MONITOR
POWER
SUPPLY
+35V
+15V
+13.5V
+5V
+15V_ISO
ISO
.05uF
+35V
INP
UT VOLTAGE
MONITO
R
(M
OTOR FETS ARE
BOTH
O
FF
WH
EN
I
NPUT
VOLTAGE DROPS
BEL
OW 2
0V)
+VM
COM
+13.5V
TACHOMETER
COM
DRI
VE
BR
AKE
+ VM
P
WM
MO
T
OR
CON
T
RO
L
PU
LS
E
BY
P
UL
SE
PEA
K
CURR
EN
T
LI
MI
T
AV
ER
AGE
CURR
EN
T
LI
MI
T
IN
G
+35V
SWITCH
INPUTS
COM
+13.5V
ARC
VOLTAGE
FEE
D
BA
CK
SchematicG4616
500
For programming at LECo
f actor y only.
Not field reprogrammable.
Mo
t
or
+
FE
ED
PL
AT
E
TO
R
OI
D
TO
R
OI
D
TO
R
OI
D
TO
R
OI
D
+35V
4.5 A
PEAK
CURRE
NT
LIMIT
Locat ed behind
t he glasti c panel
next to the motor.
PSOC
Locat ed behind t he wir e dr ive
(Eur opean Models Only)
Not a
P
C board; no schemati
c.
Access
t
hi s connector
by
r
emoving
t
he wi re
dr ive asbly.
Locat ed on the case f ront .
Remove the wir e dr ive
asbl y to gai n access.
Locat ed on t he lower lef t
of the front of the case.
N.
A.
CA
VIT
Y
N
UM
BE
RI
N
G
SEQUENC
E
A
SVI
EWE
D F
R
OM
C
OM
PONE
NT
SI
D
E
OF
BOAR
D.
N.
B.
CA
VIT
Y
N
UM
BE
RI
N
G
SEQUENC
E
A
SVI
EWE
D F
R
OM L
EA
D
SI
D
E
OF
CONNE
CT
O
R.
N.
C. T
OG
GL
E
S
WIT
CHE
S
AN
D
P
OT
E
NTIOM
ET
ER
S
SHOW
N F
R
OM
CONNE
CTI
O
N
SI
D
E
OF
S
WIT
C
H.
Locat ed behind t he insulating
wir e dri ve panel . Remove t he
wire drive ably to gain access.
Locat ed under the cover
at the r ear of t he feeder
W
F
S
R
A
N
G
E
Mode
Trigger
13.5VDC when Open,
0VDC when Trigger Closed
667
J
1-
1
PURGE
S1
67
21
21
V
OLTM
ET
ER
+Vin
J
1-
3
J
3-
10
J
3-
14
621
624
J
3-
6
J
4-
14
J
4-
13
.05
J
2-
3
J
2-
6
J
4-
5
10K
J
4-
12
J
4-
7
COM
+5V
J
4-
9
100K
J
4-
1
J
4-
8
COM
COM
COM
530(B)
500(B)
608
621
COLD
INCH
J
2-
4
J1
4-
7
J1
4-
6
J
4-
3
J
4-
11
J
4-
10
J
4-
4
509
530
608
523
523B
J
2-
2J
2-
5J
4-
6
DATA SCLK
XRES
J
3-
7
COM
500A
J
3-
8
3.3K
622A
J
1-
4
500A
J
1-
2
J
3-
5
J
3-
16
622A
622
COM
JC*
JR
COM
OLD
REMOTE BD
(op
ti
onal)
-DC
JR
OLD
REMOTE BD
(op
ti
onal)
+V
667
JS
JR
REMOTE BD
(op
ti
onal)
OLD
CONTACTOR BD
(op
ti
onal)
+V
JC
+V
621
J
3-
15
500
J4
7
8
14
1
to
Ti
m
er
B
d
ACTIVATE
FEEDER
530A
J
3-
3
530A
J
3-
12
J1
4-
5
J
3-
11
530A
530
JS
JT
ACTIVATE
SOLENOID
C
OM
P
REF
+
13
.5V
J1
4-
10
530
JS
JR
JC
JS
606
J
3-
1
JR
JR
JC
C
OM
P
REF
+
13
.5V
J1
4-
8
606
JT
OLD
REMOTE BD
(op
ti
onal)
TIMER BD
(op
ti
onal)
(606)
(530)
CL
O
GI
C
CLOGIC
CLOGIC
TI
MER
TI
MER
TI
MER
TIMER BD
(op
ti
onal)
TI
MER
J1
4-
4
J1
4-
2
512
500
+
13
.5V
J
3-
13
+
13
.5V
512
(512)
+V
OLD CONTACTOR BD
(op
ti
onal)
+V
CC
SE
N
SE
J1
4-
1
U
J1
4-
9
U
J
3-
2
J
3-
4
/S
S
M
OSI
TRI
GGER
LO
GI
C
WFS POT
SOL_DRV
BRAKE_DRV
IM_AVG
PWM_DRV
VIM_PEAK
MOTOR_VSENSE
CC_SENSE
ARC_VSENSE
+35V_SENSE
CONT_DRV
COM
COM
COM
COM
The WFS switch shown in low r ange.
The l ow WFS range is50- 350 i n/min.
The hi gh WFS range i s50-700 i n/min.
The mode switch is
shown inCC mod e.
Locat ed on r ear
of case.
Locat ed insi de case
bel ow vol t met er.
Locat ed ins ide case.
Located on front of case,
above WFS contr ol knob.
(500A)
(500)
(622A)
(622)
(512)
(606)
(500)
(606)
(530)
(512)
(530)
(530A)
(530A)
(530A)
(667)
(624)
(624)
(621)
(621)
(500)
OPTIONBOARDEXPLANATION
Therearethree optional boards availablefor the LN-25. The wiring associated
withthese boards isindicated by dashed lines.and the abbreviations areas
follows:
JS -StandardWiring, No Option Boards Installed. Thiswiring jumper must be installed ifremotekitisnot present.
JC -Optional Contactor Board.
JR -Optional RemoteBoard.
JT -Optional Timer Board. Iftimer kitisnot installed, and remoteboardisnot present,then jumper isinstalled inJ11.
Ifremoteboardispresent,then jumper isinstalled inJ6 of remoteboard.
The Optional Boards aredivided on thisprint for clarity.
COM
COM
COM
COM
COM
COM
COM
N.
O.
CC
CV
N.C.
Input Power
15V-110VDC
COM
621
J
3-
6
512
J
3-
13
+
13
.5V
JS
JC*
JS
CODES 11144, 11145, 11146
TO
R
OI
D
250A 100%
N.
O.
NOTE:
OL
DE
R OPTION BOA
RD
S MA
Y
BE LEFT
IN
CI
RC
UIT O
R
R
EMOVED. IF
REMOVE
D,
A PROPE
R J
U
MPE
R PL
UG
N
EE
D
S TO
BE
INSTALLE
D.
1M ohms
.0047
/.
005
mf
d,
1400VDC
GND-S5
GND-S1
G-6
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
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