Ln-25 across the arc model, Electrical diagrams, Psoc – Lincoln Electric LN-25 SVM114-C User Manual
Page 96: G5366, G53 66
ELECTRICAL DIAGRAMS
G-6
¤
¤
SCHEMATIC - COMPLETE MACHINE - CODES ABOVE 11140 (G5366)
E
N
-1
7
0
G5366
LN-25 (ACROSS THE ARC)
MACHINE SCHEMATIC
NONE
G4198-1
M. DIDION
M. DIDION
DO NOT SCALE THIS DRAWING
DRAWN BY:
DESIGN INFORMATION
ENGINEER:
APPROVED:
REFERENCE:
EQUIPMENT TYPE:
SUBJECT:
SCALE:
MATERIAL
DISPOSITION:
APPROVAL
DATE:
PROJECT
NUMBER:
NA
CRM36946
1
PAGE ___ OF ___
1
ENGINEERING CONTROLLED
MANUFACTURER:
No
DOCUMENT
NUMBER:
DOCUMENT
REVISION:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
PROPRIETARY & CONFIDENTIAL:
A
10/4/2004
NEW
CHANGE DETAIL:
t
MATERIAL TOLERANCE (" ") TO AGREE
WITH PUBLISHED STANDARDS.
ON ALL ANGLES IS ± .5 OF A DEGREE
ON 3 PLACE DECIMALS IS ± .002
ON 2 PLACE DECIMALS IS ± .02
UNLESS OTHERWISE SPECIFIED TOLERANCE:
MANUFACTURING TOLERANCE PER E2056
S
O
L
ID
E
D
G
E
G53
66
LN-25 ACROSS THE ARC MODEL
J14
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C. BOARD)
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
CONTACTOR
300A 60%
WORK
CLIP
A
D
C
B
E
J3
552
553
GAS
SOLENOID
690
541
539
691
TRIGGER
CONNECTOR
578
507
523
509
621
522
MODE
500
WIRE FEED SPEED
CONTROL
POTENTIOM ETER
21
MOT OR /
GEARBOX
TACH.
67
7
2
1
8
4
3
W
B
B
J2
INPUT ELECTRODE
CABLE CONNECTION
GUN
TRIGGER
INPUT
.0047/.005 mfd,
1400VDC
1M ohms
6
5
GND-S2
1
2
3
MO V ASBLY
1.9VDC
@ 50
i
n/mi
n
20.1VDC
@ 700
i
n/mi
n
8sec
average
Current
l
i
mi
t
=3.5Amps
(Li
mi
ti
ssoftwareset)
MeasureB toU
130
Hz
@ 50
i
n/mi
n
1.85
kHz
@ 700
i
n/mi
n
13.5VDC T
ach
Suppl
y
4.25
VDC
when
gas
fl
owi
ng
Coi
lmeasures
21
ohms
PW M
control
l
ed
G
a
s
P
u
rg
e
C
o
ld
In
c
h
Bussbar from
i
nput
stud
tocont
actor
R
U
COM
POT Suppl
y
W ip
er
W i
per toCOM
5VDC
at
700
i
pm
0VDC
at
50
i
pm
10K
Ohms
Coi
lmeasures
4.4ohms.
0VDC
Open
3.0VDC
Cl
osed
12
VDC
coi
l
PW M
Control
l
ed
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
K449
Across the Arc
Recommended
all CV operation.
Recommended for CV
operation. (Wire
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
constant 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
Motor
-
Gas
Sol
enoi
d+
Gas
Sol
enoi
d-
Tach
COM
J2-1
LN-25 FEEDHEAD
P.C. BOARD
512
500
Vin
-
+
+Vin
632
555
631
633
TachSig
nal
MOTOR SUPPLY
VOLTAGE MONITOR
POWER
SUPPLY
+35V
+15V
+13.5V
+5V
+15V_ISO
ISO
.05uF
+35V
INPUT VOLTAGE
MONITOR
(MOTOR FETS ARE
BOTH OFF WHEN INPUT
VOLTAGE DROPS
BELOW 20V)
+VM
COM
+13.5V
TACHOMETER
COM
DRIVE
BRAKE
+ VM
PWM
MOTOR
CONTROL
PULSE BY PULSE
PEAK CURRENT
LIMIT
AVERAGE
CURRENT
LIMITING
+35V
SWITCH
INPUTS
COM
+13.5V
ARC
VOLTAGE
FEEDBACK
Schemati
cG4616
500
For programming at LECo
factory only.
Not field reprogrammable.
Motor+
FEEDPLATE
TOROID
TOROID
TOROID
TOROID
+35V
4.5 A PEAK
CURRENT
LIMIT
Located behind
the glastic panel
next to the motor.
PSOC
Located behind the wire drive
(European Models Only)
Not a
PC board; no schemati
c.
Access this connector
by removing the wire
drive asbly.
Located on the case front.
Remove the wire drive
asbly to gain access.
Located on the lower left
of the front of the case.
N.A.
CAVITY NUM BERING SEQUENCE AS VIEW ED FROM COM PONENT SIDE OF BOARD.
N.B.
CAVITY NUM BERING SEQUENCE AS VIEW ED FROM LEAD SIDE OF CONNECTOR.
N.C. T
OGGLE SWITCHES AND POTENTIOM ETERS SHOW N FROM CONNECTION SIDE OF SWITCH.
Located behind the insulating
wire drive panel. Remove the
wire drive ably to gain access.
Located under the cover
at the rear of the feeder
WFS RANGE
M
o
d
e
Tri
gger
13.5VDC
when
Open,
0VDC
when
Tri
gger Cl
osed
667
J1-1
PURGE
S1
67
21
21
VOLTM ETER
+Vin
J1-3
J3-10
J3-14
621
624
J3-6
J4-14
J4-13
.05
J2-3
J2-6
J4-5
10K
J4-12
J4-7
COM
+5V
J4-9
100K
J4-1
J4-8
COM
COM
COM
530(B)
500(B)
608
621
COLD
INCH
J2-4
J14-7
J14-6
J4-3
J4-11
J4-10
J4-4
509
530
608
523
523B
J2-2
J2-5
J4-6
DATA SCLK XRES
J3-7
COM
500A
J3-8
3.3K
622A
J1-4
500A
J1-2
J3-5
J3-16
622A
622
COM
JC*
JR
COM
OLD
REMOTE BD
(optional)
-DC
JR
OLD
REMOTE BD
(optional)
+V
667
JS
JR
REMOTE BD
(optional)
OLD
CONTACTOR BD
(optional)
+V
JC
+V
621
J3-15
500
J4
7
8
14
1
to Timer Bd
ACTIVATE
FEEDER
530A
J3-3
530A
J3-12
J14-5
J3-11
530A
530
JS
JT
ACTIVATE
SOLENOID
COM P
REF
+13.5V
J14-10
530
JS
JR
JC
JS
606
J3-1
JR
JR
JC
COM P
REF
+13.5V
J14-8
606
JT
OLD
REMOTE BD
(optional)
TIMER BD
(optional)
(606)
(530)
C LOGIC
C LOGIC
C LOGIC
TIMER
TIMER
TIMER
TIMER BD
(optional)
TIMER
J14-4
J14-2
512
500
+13.5V
J3-13
+13.5V
512
(512)
+V
OLD CONTACTOR BD
(optional)
+V
CC
SENSE
J14-1
U
J14-9
U
J3-2
J3-4
/SS MOSI
TRIGGER
LOGIC
WFS POT
SOL_DRV
B
RA
K
E
_
DRV
IM
_
A
V
G
PWM_DRV
VIM_PEAK
M
O
T
O
R_
V
S
E
NS
E
CC_
S
E
NS
E
A
RC_
V
S
E
NS
E
+
3
5
V
_
S
E
NS
E
CO
NT
_
DRV
COM
COM
COM
COM
The WFS switch shown in low range.
The low WFS range is 50-350 in/min.
The high WFS range is 50-700 in/min.
The mode switch is
shown in CC mode.
Located on rear
of case.
Located inside case
below voltmeter.
Located inside case.
Located on front of case,
above WFS control knob.
(500A)
(500)
(622A)
(622)
(512)
(606)
(500)
(606)
(530)
(512)
(530)
(530A)
(530A)
(530A)
(667)
(624)
(624)
(621)
(621)
(500)
OPTION BOARD EXPLANATION
Therearethree
opti
onal
boards
avai
l
abl
efor
the
LN-25. The
wi
ri
ng
associ
ated
wi
ththese
boards
i
si
ndi
cated
by
dashed
l
i
nes.and
the
abbrevi
ati
ons
areas
fol
l
ows:
JS
-StandardW i
ri
ng,
No
Opti
on
Boards
Instal
l
ed. Thi
swi
ri
ng
j
umper
must
be
i
nstal
l
ed
i
fremoteki
ti
snot
present.
JC
-Opti
onal
Contactor
Board.
JR
-Opti
onal
Remot
eBoard.
JT
-Opti
onal
Ti
mer
Board. Ifti
mer ki
ti
snot
i
nstal
l
ed,
and
remoteboardi
snot
present,then
j
umper
i
si
nstal
l
ed
i
nJ11.
Ifremoteboardi
spresent,then
j
umper
i
si
nstal
l
ed
i
nJ6
of
remoteboard.
The
Opti
onal
Boards
aredi
vi
ded
on
thi
spri
nt
for cl
ari
ty.
COM
COM
COM
COM
COM
COM
COM
N.O.
CC
CV
N.C.
Input Power
15V-110VDC
COM
621
J3-6
512
J3-13
+13.5V
JS
JC*
JS
CODES
11144,
11145,
11146
TOROID
250A 100%
N.O.
NOTE:
OLDER OPTION BOARDS MAY BE LEFT
IN CIRCUIT OR REMOVED. IF REMOVED,
A PROPER JUMPER PLUG NEEDS TO BE
INSTALLED.
1M ohms
.0047/.005 mfd,
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.