Lincoln Electric SVM179-B service manual ElECTriCal DiaGrams

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G-8

ElECTriCal DiaGrams

G-8

sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11507, 11508 - (G5683-1) pG1

1-G5683

ENGINEERING CONTROLLED CHANGE DETAIL: MISC. UPDATES PER SERVICE DEPARTMENT.

When tach feed back is lost,

Start-Up

3

P7 = 16 PIN

(controlled by72 HZ TO 1.2 KHZ LN-Gearbox25ratio is 23.5:1PRO WIRE FEEDER

If the feeder is powered-up with the trigger depressed, welding will

MANUFACTURER: No

the voltage to the motor is a

On power-up, the LN-25 PRO will light the motor thermal LED and

P17 = 6 PIN (Both are located on lower front)

constant 10VDC.

polarity LED 2-3 seconds.

software)

667C

667A

Top of motor

R-B 15.0 VDC

Motor case is at

Motor resistance

not start until the trigger is released and then depressed again.

6

1 of 2 P17

21A

667B

Leads Pass through

B-U 6.2 VDC ANY SPEED

electrode potential

is 1.5 ohms

Notes:

621

P17

4

1

621A

+

toroid2times.

(METER DEPENDENT)

R

Motor is located

PLASTIC HOUSED BOLTED

WORK CLIP

D1

2 of 2

21C

531

L4

531

2

U

behind

Motor overcurrent limit varies with WFS.

21B

67B

1

3

glastic panel

FEED

CONNECTION (BASE CENTER)

Before 2-20-2009

-

537

537

4

B

MOTOR /

PLATE

67C

Current

534

534

5

GEARBOX

67D

From Power Source

Level

551

6

case front

Located on

7

B

copper bar

copper bar

weld cable

(Electrode Connection)

4.5

strain relief

Case front

67C

550

8

W

case back

3.5

P9

TAKEN WITH 40 V INPUT

L12081 2.6 V @ 50 IPM

gun connector

strain relief

67B

27 V @ 700 IPM

IN CV MODE.

67C & 67D

Preset

Leads Pass

L13084 2.6 V @ 25 IPM

TRIGGER CONNECTOR

WFS

through

32 V @ 400 IPM

EXTRA TORQUE

J14

TRIGGER

toroid2times.

622A

A

INPUT

14 PIN REMOTE

Located on Wire

500A

B

Drive Panel

TRIGGER INTERLOCK

C

Located on

After 2-20-2009

0V.=TRIGGER

LEADS ARE

NOT

L5

(NOT PRESENT ON K2613-3)

D

Case Front

Current

PRESENT BUT

CLOSED

E

Level

NOT USED IN

USED

15V=2 STEP

S1

S1, S2 & S3 Located

15VDC.=TRIGGER

THIS UNIT.

J18

on Wire Drive Panel

OPEN

4.5

0V=TRIGGER

509E

INTERLOCK

587

3.5

IN HARNESS

Trigger Interlock does not stop

509B

9

welding when the arc is broken.

CENTER BASE

2-STEP

Preset

10

Pull and release to end the weld.

AREA

509D

77C

COLD FEED

WFS

5

S2

15V=CV

TIMER KIT P.C. BOARD

370

530

700

4

76C

0V=COLD FEED

509E

CC

0V=CC

4

509B

*Extra Torque

180*

257*

400*

J15

3

75C

(N.O.)

530A

622

(OPTIONAL)

The WFS range of the LN-25 PRO

S3

SCHEMATIC = M21341

1

CV

500

Normal Speed = 40- 700 IPM.

667D

6

21E

N.O.

2

SEE PAGE 2

Extra Torque = 25- 400 IPM.

LINE FILTER FOR NOISE ON

2

509C

1 of 4

WFS limited by arc voltage when operating across the arc

667B

523

INVERTER INPUT POWER.

7

607

608 606A 605

4B

509B 601

P7

Maximum WFS

LOCATED ABOVE CONTROL

8

4 O COIL

ANALOG

P16

Feeder Input Volts

Standard Gear

Extra Torque

BOARD ON TOP CENTER OF

+

VOLTMETER

Located on 4

2

3

1

0 VDC OPEN

15

280

210

CONTROL BOX ASSEMBLY

3 VDC CLOSED

6 5

3 2

1 P60

667E

-

40V MAX.

top of motor

12 VDC COIL

8

7

4

17

340

235

PWM CONTROLLED

21

440

400

721

Located under

24

520

400

27

600

400

10

75C

P7-1

Wire Drive Panel

CONTACTOR

11

76C

Control Board Summary

3 of 4

12

77C

Connector

JUMPER TOGETHER FOR

Converts arc power to a usable control circuit voltage.

P7

located

EXTRA TORQUE MACHINE

Receives switch signals from Trigger, Cold Feed, Gas Purge

4 of 4

behind case

ISOLATED 2-4 TO

Reads WFS potentiometer.

575A

6

575A

front

537

534

550

67F

21D

530

POWER SOURCE

4

607

608

606

605

601

EXTRA

Communicates with optional timer kit.

576A

7

576A

551

721

622

Controls motor speed with PWM.

Locatedon

531

2

578

507

577A

8

577A

587

523

509A

500

TORQUE

Turns Gas Solenoid on, off, PWM.

CaseFront

10K/2W

575A

J4-11 J4-12 J4-6 J4-9 J4-7 J4-10 J4-2 J4-1

J5-7

J6-2 J6-3

J6-4 J6-6

J6-9

J6-10

J5-4 J5-3

+35V

J4-8

J4-5

J2-3

J2-5

J2-1

J2-7

J2-8

Reads the motor tachometer.

J5-6 J5-5

+15V

J2-6

J2-2

Operating Voltage= 15-110 VDC.

MOTOR

R1

576A

100K

+5V

+15V

+15V

20

Shut down Voltage= 130 VDC.

SUPPLY

ohm

577A

10K

TRIGGER

MACHINE

MOV

ohm

Thermal light turns on when shutdown voltage exceeded.

WIRE FEED SPEED

0 VDC MIN. WFS

J5-1

ohm

+5V

+15V

CC/VV

OUTPUT

Code and

Serial numbers are

below Wire Drive on

plastic

CONTROL

5 VDC MAX. WFS

COM

TRIGGER INTERLOCK / 2 STEP

CONTACTOR DRIVE

+15V SPI

ENABLE

POTENTIOMETER

.05 uF

COLD FEED

housing Nameplate.

+5V SPI

COM

POWER

-15V

600 V

Thermal “Yellow” Light

SUPPLY

+15V ISO

MICRO

100K

Motor Over Current

+5VDC

CONTROLLER

LED

35VDC

METER

COM

ohm

Motor and trigger disabled for 30 seconds.

ISO

COMPENSATION

POLARITY

721 IS DRIVEN NEGATIVE TO COMPENSATE

CIRCUIT

4B

Must retrigger to start welding after 30 seconds pass.

SENSE

GAS

667

FOR THE METER FOR DIODE DROP ERROR

Shutdown Voltage exceeded

ON THE BRIDGE

+15

ON - OFF

OVER

POWER

MOTOR

May occur with some inverters.

0V = OFF

621

J5-8

VOLTAGE

SUPPLY

SUPPLY

-15

BURNBACK

250msec

May occur with some CC machines with high

PROTECTION

20msec ----

(LOCATED AT

COM

DRIVE

inductance.

GAS PURGE

OUTSIDE REAR

PWM

DRIVE

Polarity “Green” Light

OF FEEDER)

+15V

On= Positive Polarity

PUSHBUTTON

610

MOTOR

BRAKE

GAS

J6-7

Off= Negative Polarity

SWITCH (N.O.)

S4

BRAKE DRIVE

MOTOR VOLTAGE

YELLOW THERMAL LED

FLOW

612

J6-1

COM

CIRCUIT

MOTOR CURRENT

+5V SPI

13.5 VDC WHEN

0.05K

ENABLE

15

NOT DEPRESSED

ohm

(OUTSIDE BACK

0-5V PULSE SIGNAL

TACH

POLARITY LED

COM

J6-14

B

2B

(LOCATED AT TOP

OF CASE)

FREQUENCY = SPEED

FEEDBACK

13

Not present

+35V

0V = MIN SPEED

WIRE FEED

1B

FRONT OF FEEDER)

on K2613-3

GAS

690

J4-3

5V = MAX SPEED

SPEED

GAS PURGE

ARC ESTABLISHED

COM

SOLENOID

14

YELLOW

GREEN

GAS SOLENOID

J6-11

1W

MOTOR

22 O COIL

691

J4-4

16

THERMAL

POLARITY

25 TO 35

0 VDC OPEN

PROGRAM

J6-12

2W

LED

LED

4 VDC CLOSED

9

NORMAL

12 VDC COIL

J6-5

708

FLOW RATE

PWM CONTROLLED

(LOCATED AT REAR

+5V SPI

+5V

FLEXIBLE POWER P.C. BOARD

+5V SPI

+15V

-15V

5

OF FEEDER)

MISO MOSI CS0

CS1 CS2

CS3 SCLK

J6-8

707

COM

SCHEMATIC = G4745

BALL FLOAT

2 of 4

USE MIDDLE OF

(LOCATEDINSIDEOF

J3-8

J3-7

J1-10

J1-7 J1-9 J1-3 J1-4 J1-5 J1-6 J1-8

J1-2

J1-1

P7

BALL TO SET

J3-6

J3-1 J3-2 J3-3 J3-4 J3-5

ADJUST VALVE

CONTROLBOX)

+

RED

FLOW METER

FAN BLOWS AIR ACROSS

FAN

PROGRAMMING PCB

SPI DIGITAlL COMMUNICATION

GOOD FOR Ar, CO2,

BLACK

CONTROL PC BOARD

-

FACTORY USE ONLY

CO2/Ar BLENDS

CONTINOUSLY AT 6200 RPMS.

Model

Ranger 8,9

Classic

Ranger 250, 305

V350

DC-400, 600

Square Wave TIG 300/355

Miller Inverters

STT II

Note:

Commander 300,400,500

(Common Digital

Most semiautomatic wire

(Common Analog

Controls)

welding processes perform

K2613-1

Recommended

Recommended for

Controls)

Recommended

Recommended

Not recommended for CC operation

Recommended

Not recommended

better using constant voltage

Recommended for CV

power sources. Be sure the

K2613-2

all CV

CV operation.

operation.

for CV

for CV and CC

because the customer may

for CV voltage

for STT operation. proper power source is used

K2613-3

operation.

(Wire Feed

operation.

operation.

experience short contactor life from

sense operation.

for your application. Contactor

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

Module Required)

May be used for

inductive nature of the power source.

Not

life may be shortened in

PROPRIETARY & CONFIDENTIAL:TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

pulse welding if

Not recommended with high frequency

recommended for

applications using CC

MANUFACTURING TOLERANCE PER E2056

CONTROL: CLEVELAND

SCALE:

EQUIPMENT TYPE:

LN-25 PRO

PAGE 1 OF 2

the welding

TIG starting.

use when pulse

machines with high OCV.

UNLESS OTHERWISE SPECIFIED TOLERANCE:

ON 2 PLACE DECIMALS IS ± .02 in. (± 0.5 mm)

tpearn

NONE

procedure is

welding.

ON 3 PLACE DECIMALS IS ± .002 in. (± 0.05 mm)

DRAWN BY:

IF PRINTED

SUBJECT:

MACHINE SCHEMATIC

DOCUMENT

DOCUMENT

qualified by the

MATERIAL TOLERANCE ("t") TO AGREE

ENGINEER:

ENYEDY

@ A1 SIZE

NUMBER:

REVISION:

ON ALL ANGLES IS ± .5 OF A DEGREE

G5683-1

C

customer.

WITH PUBLISHED STANDARDS.

UNITS:

MATERIAL

APPROVAL

2/12/2010

PROJECT

REFERENCE:

DO NOT SCALE THIS DRAWING

APPROVED:

SCHOLTI

INCH

DISPOSITION: NA

DATE:

NUMBER:

CRM40936

G5683

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

lN-25™ prO