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G-8
sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11507, 11508 - (G5683-1) pG1
G5683-1
667C
621
WORK CLIP
Located on
Case Front
10K/2W
WIRE FEED SPEED
CONTROL
POTENTIOMETER
GAS PURGE
PUSHBUTTON
SWITCH (N.O.)
(OUTSIDE BACK
OF CASE)
Not present
on K2613-3
25 TO 35
NORMAL
FLOW RATE
FLOW METER
GOOD FOR Ar, CO2,
CO2/Ar BLENDS
Model
K2613-1
K2613-2
K2613-3
ENGINEERING CONTROLLED
MISC. UPDATES PER SERVICE DEPARTMENT.
CHANGE DETAIL:
No
MANUFACTURER:
P7 = 16 PIN
P17 = 6 PIN (Both are lo cat ed on lower front)
3
667A
1 of 2
P17
21A
667B
6
Leads Pass through
621A
P17
4
toroid 2times.
2 of 2
531
D1
21C
1
537
21B
67B
534
Located on
ca se front
Case front
strain rel ief
67C
67B
Leads Pass
through
toroid 2 times.
Located on Wire
14 PIN REMOTE
Drive Panel
LEADS ARE
L5
PRESENT BUT
NOT
NOT USED IN
USED
THIS UNIT.
J18
IN HARNESS
9
CENTER BASE
10
AREA
5
77C
4
76C
3
75C
J15
1
6
21E
2
LINE FILTER FOR NOISE ON
7
INVERTER INPUT POWER.
8
LOCATED ABOVE CONTROL
BOARD ON TOP CENTER OF
CONTROL BOX ASSEMBLY
10
75C
11
76C
12
77C
Connector
P7
located
4 of 4
behind case
front
575A
6
575A
576A
7
576A
577A
8
577A
575A
J4-11 J4-12 J4-6
J4-9
576A
R1
MOTOR
100K
+5V
SUPPLY
577A
ohm
J5-1
0 VDC MIN. WFS
+15V
5 VDC MAX. WFS
COM
+15V SPI
+5V SPI
POWER
-15V
SUPPLY
+15V ISO
+5VDC
LED
35VDC
ISO
667
OVER
POWER
VOLTAGE
SUPPLY
621
J5-8
PROTECTION
(LOCATED AT
COM
OUTSIDE REAR
OF FEEDER)
+15V
610
J6-7
S4
612
J6-1
13.5 VDC WHEN
NOT DEPRESSED
+35V
GAS
690
J4-3
SOLENOID
22 O COIL
691
J4-4
0 VDC OPEN
4 VDC CLOSED
12 VDC COIL
PWM CONTROLLED
(LOCATED AT REAR
+5V SPI
OF FEEDER)
COM
BALL FLOAT
USE MIDDLE OF
J3-8
BALL TO SET
J3-6
(LOCATED INSIDEOF
CONTROLBOX)
RED
ADJUST VALVE
FAN
FAN BLOWS AIR ACROSS
CONTROL PC BOARD
BLACK
-
CONTINOUSLY AT 6200 RPMS.
Ranger 8,9
Classic
Ranger 250, 305
V350
DC-400, 600
Commander 300,400,500
(Common Digital
(Common Analog
Controls)
Controls)
Recommended
Recommended for
Recommended for CV
Recommended
Recommended
all CV
CV operation.
operation.
for CV
for CV and CC
operation.
(Wire Feed
operation.
operation.
Module Required)
May be used for
pulse welding if
the welding
procedure is
qualified by the
customer.
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
ElECTriCal DiaGrams
When tach feed back is lost,
LN-25 PRO WIRE FEEDER
the voltage to the motor is a
constant 10VDC.
(controlled by software)
72 HZ TO 1.2 KHZ
Gearbox ratio is 23.5:1
Motor resistance
R-B 15.0 VDC
Motor case is at
Top of motor
electrode potential
is 1.5 ohms
B-U 6.2 VDC ANY SPEED
1
(METER DEPENDENT)
Motor is located
2
R
behind
L4
531
3
U
glastic panel
FEED
4
537
B
MOTOR /
PLATE
534
5
GEARBOX
6
551
7
B
550
8
W
P9
TAKEN WITH 40 V INPUT
L12081 2.6 V @ 50 IPM
gun connector
IN CV MODE.
67C & 67D
27 V @ 700 IPM
L13084 2.6 V @ 25 IPM
32 V @ 400 IPM
EXTRA TORQUE
TRIGGER INTERLOCK
(NOT PRESENT ON K2613-3)
S1, S2 & S3 Located
S1
15V=2 STEP
on Wire Drive Panel
0V=TRIGGER
509E
INTERLOCK
587
Trigger Interlock does not stop
509B
welding when the arc is broken.
Pull and release to end the weld.
2-STEP
509D
COLD FEED
15V=CV
S2
0V=CC
0V=COLD FEED
509E
CC
(N.O.)
530A
622
S3
CV
500
N.O.
509C
667B
523
ANALOG
P16
+
VOLTMETER
3
1
4
2
Located on
-
40V MAX.
top of motor
721
P7-1
3 of 4
534
550
21D
531
622
721
530
537
551
67F
587
500
523
509A
J6-3
J6-9 J6-10
J4-10
J4-2
J5-7
J5-6
J5-5
J6-2
J6-4
J6-6
J4-7
J4-1
+15V
+15V
10K
TRIGGER
ohm
CC/VV
TRIGGER INTERLOCK / 2 STEP
COLD FEED
.05 uF
COM
600 V
MICRO
CONTROLLER
METER
COMPENSATION
CIRCUIT
POLARITY
721 IS DRIVEN NEGATIVE TO COMPENSATE
SENSE
FOR THE METER FOR DIODE DROP ERROR
ON THE BRIDGE
+15
MOTOR
SUPPLY
-15
DRIVE
PWM
DRIVE
MOTOR
BRAKE
BRAKE
DRIVE
MOTOR VOLTAGE
CIRCUIT
MOTOR CURRENT
COM
0.05K
ohm
0-5V PULSE SIGNAL
TACH
FREQUENCY = SPEED
FEEDBACK
0V = MIN SPEED
WIRE FEED
5V = MAX SPEED
SPEED
GAS PURGE
GAS SOLENOID
PROGRAM
FLEXIBLE POWER P.C. BOARD
+5V
SCHEMATIC = G4745
J3-7
PROGRAMMING PCB
FACTORY USE ONLY
Square Wave TIG 300/355
Miller Inverters
STT II
Note:
Most semiautomatic wire
welding processes perform
better using constant voltage
Not recommended for CC operation
Recommended
Not recommended
power sources. Be sure the
because the customer may
for CV voltage
for STT operation.
proper power source is used
for your application. Contactor
experience short contactor life from
sense operation.
inductive nature of the power source.
Not
life may be shortened in
Not recommended with high frequency
recommended for
applications using CC
TIG starti ng.
use when pulse
machines with high OCV.
welding.
PLASTIC HOUSED BOLTED
CONNECTION (BASE CENTER)
67C
67D
copper bar
weld cable
copper bar
ca se back
strain rel ief
TRIGGER CONNECTOR
J14
TRIGGER
622A
A
INPUT
B
500A
C
Located on
Case Front
0V.=TRIGGER
D
CLOSED
E
15VDC.=TRIGGER
OPEN
TIMER KIT P.C. BOARD
509B
4
(OPTIONAL)
SCHEMATIC = M21341
SEE PAGE 2
2
1 of 4
607
608
606A
605
4B
509B
601
P7
4 O COIL
0 VDC OPEN
3 VDC CLOSED
8
7
6
5
4
3
2
12 VDC COIL
1
P60
PWM CONTROLLED
Located under
Wire Drive Panel
CONTACTOR
JUMPER TOGETHER FOR
EXTRA TORQUE MACHINE
ISOLATED 2-4 TO
POWER SOURCE
4
606
605
EXTRA
607
608
601
2
578
507
TORQUE
+35V
J5-4 J5-3
J2-1
J4-8 J4-5
J2-6 J2-3
J2-2
J2-5
J2-7
J2-8
+15V
20
MOV
ohm
MACHINE
+5V
OUTPUT
ENABLE
CONTACTOR DRIVE
100K
COM
ohm
GAS
ON - OFF
0V = OFF
20msec ---- 250msec
BURNBACK
YELLOW THERMAL LED
+5V SPI
COM
POLARITY LED
COM
ARC ESTABLISHED
-15V
+5V SPI +15V
J1-10
J1-2 J1-1
SPI DIGITAlL COMMUNICATION
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
PROPRIETARY & CONFIDENTIAL:
TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
MANUFACTURING TOLERANCE PER E2056
SCALE:
CONTROL:
CLEVELAND
EQUIPMENT TYPE:
UNLESS OTHERWISE SPECIFIED TOLERANCE:
ON 2 PLACE DECIMALS IS ± .02 in. ( ± 0.5 mm)
NONE
ON 3 PLACE DECIMALS IS ± .002 in. ( ± 0.05 mm)
DRAWN BY:
tpearn
IF PRINTED
SUBJECT:
ON ALL ANGLES IS ± .5 OF A DEGREE
@ A1 SIZE
MATERIAL TOLERANCE (" ") TO AGREE
t
ENGINEER:
ENYEDY
WITH PUBLISHED STANDARDS.
UNITS:
MATERIAL
DO NOT SCALE THIS DRAWING
APPROVED:
SCHOLTI
INCH
DISPOSITION:
G-8
Start-Up
On power-up, the LN-25 PRO will light the motor thermal LED and
polarity LED 2-3 seconds.
If the feeder is powered-up with the trigger depressed, welding will
not start until the trigger is released and then depressed again.
Notes:
Motor overcurrent limit varies with WFS.
Before 2-20-2009
Current
Level
From Power Source
(Electrode Connection)
4.5
3.5
Preset
WFS
After 2-20-2009
Current
Level
4.5
3.5
Preset
WFS
370
530
700
*Extra Torque
180*
257*
400*
The WFS range of the LN-25 PRO
Normal Speed = 40- 700 IPM.
Extra Torque = 25- 400 IPM.
WFS limited by arc voltage when operating across the arc
Maximum WFS
Feeder Input Volts Standard Gear Extra Torque
15
280
210
17
340
235
21
440
400
24
520
400
27
600
400
Control Board Summary
Converts arc power to a usable control circuit voltage.
Receives switch signals from Trigger, Cold Feed, Gas Purge
Reads WFS potentiometer.
Communicates with optional timer kit.
Controls motor speed with PWM.
Turns Gas Solenoid on, off, PWM.
Reads the motor tachometer.
Operating Voltage= 15-110 VDC.
Shut down Voltage= 130 VDC.
Thermal light turns on when shutdown voltage exceeded.
Code and Serial numbers are below Wire Drive on plastic
housing Nameplate.
Thermal "Yellow" Light
Motor Over Current
Motor and trigger disabled for 30 seconds.
Must retrigger to start welding after 30 seconds pass.
4B
Shutdown Voltage exceeded
May occur with some inverters.
May occur with some CC machines with high
inductance.
Polarity "Green" Light
On= Positive Polarity
GAS
Off= Negative Polarity
FLOW
ENABLE
15
J6-14
B
2B
13
(LOCATED AT TOP
1B
FRONT OF FEEDER)
YELLOW
14
GREEN
MOTOR
J6-11
1W
POLARITY
THERMAL
16
LED
LED
J6-12
2W
9
J6-5
708
5
J6-8
707
2 of 4
P7
LN-25 PRO
1
2
PAGE ___ OF ___
MACHINE SCHEMATIC
DOCUMENT
DOCUMENT
NUMBER:
REVISION:
G5683-1
REFERENCE:
C
APPROVAL
PROJECT
NA
2/12/2010
CRM40936
G5683
DATE:
NUMBER:
lN-25™ prO
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