Lincoln Electric SVM179-B service manual G5683

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G-12

ElECTriCal DiaGrams

G-12

sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11746, 11747 - (G5683-3) pG1

3-G5683

ENGINEERING CONTROLLED CHANGE DETAIL: A.02, COMPLETELY REVISED

When tach feed back is lost,

LN-Gearbox25ratio is 23.5:1PRO WIRE FEEDER

Start-Up

WORK

6

1 of 2 P17

No

21A

P7 = 16 PIN

(controlled by72 HZ TO 1.2 KHZ

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

MANUFACTURER:

the voltage to the motor is a

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

667C

3

667A

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

constant 10VDC.

polarity LED 2-3 seconds.

software)

CLIP

621A

+

P17

4

667B

R-B 15.0 VDC

Motor case is at

Motor resistance

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

21B

2 of 2

Top of motor

D1

21C

Leads Pass through

B-U 6.2 VDC ANY SPEED

electrode potential

is 1.5 ohms

Notes:

1

1

(METER DEPENDENT)

R

Motor is located

case front

-

67B

toroid2times.

2

PLASTIC HOUSED BOLTED

Motor overcurrent limit varies with WFS.

531

L4

531

U

behind

667D

strain relief

Located on

3

glastic panel

FEED

CONNECTION (BASE CENTER)

Case front

537

537

4

B

MOTOR /

PLATE

67C

After 2-20-2009

534

534

5

GEARBOX

67D

From Power Source

551

6

copper bar

weld cable

Current

IN HARNESS

7

B

copper bar

(Electrode Connection)

Level

CENTER BASE

67C

550

8

W

case back

MOTOR FILTER P.C.

AREA

P9

L12081-1 2.6 V @ 50 IPM

TAKEN WITH 40 V INPUT

gun connector

strain relief

4.5

BOARD SCHEMATIC=

667D

67B

27 V @ 700 IPM

IN CV MODE.

67C & 67D

TRIGGER

S27505

J61-1

USED FOR FILTERING

Leads Pass

L13084-1 2.6 V @ 25 IPM

CONNECTOR

3.5

through

32 V @ 400 IPM

J14

TRIGGER

Located on

INVERTER NOISE

toroid2times.

EXTRA TORQUE

622A

A

Preset

14 PIN REMOTE

Located on Wire

500A

B

INPUT

Case Front

J61-2

Drive Panel

TRIGGER INTERLOCK

C

0V.=TRIGGER

370

530

700

WFS

LEADS ARE

L5

S1, S2 & S3 Located

555A

D

CLOSED

J61-3

667E

PRESENT BUT

NOT

S1

15VDC.=TRIGGER

*Extra Torque

180*

257*

400*

J61-4

NOT USED IN

USED

15V=2 STEP

on Wire Drive Panel

Located on

E

OPEN

THIS UNIT.

J18

0V=TRIGGER

509E

Case Front

INTERLOCK

587

622B

B2

Trigger Interlock does not stop

Low Range

High Range

9

WFS limited by arc voltage when operating across the arc

welding when the arc is broken.

2-STEP

(White)

(Red)

B1

10

Pull and release to end the weld.

509E

509D

WFS RANGE

Normal Speed

50-200

50-700

Maximum WFS

5

77C

667B

S3

S2

15V=CV

509B

SWITCH

Extra Torque

50-200

50-400

Feeder Input Volts

4

76C

ANALOG

0V=COLD FEED

CC

0V=CC

Standard Gear Extra Torque

15

400

220

J15

3

75C

VOLTMETER

+

(N.O.)

530A

4

509B

1

COLD FEED

CV

TIMER KIT P.C. BOARD

17

450

250

6

21E

-

40V MAX.

622

4 O COIL

21

570

300

509C

2

(OPTIONAL)

24

650

350

2

721

500

0 VDC OPEN

27

700

400

7

523

555

3 VDC CLOSED

SCHEMATIC = M21341

8

P7-1

3

12 VDC COIL

SEE PAGE 2

621

P16

4

2

3

1

1 of 4

PWM CONTROLLED

3 of 4

Located under

607

608 606A 605 4B

509B 601

Located on

P7

10

75C

top of motor

Wire Drive Panel

CONTACTOR

8

7

6

5

4

3

2

1

P60

11

76C

12

77C

P7

Connector located

Control Board Summary

4 of 4

behind case front

Converts arc power to a usable control circuit voltage.

ISOLATED 2-4 TO

575A

6

575A

Receives switch signals from Trigger, Cold Feed, Gas Purge

LocatedonCaseFront

POWER SOURCE

576A

7

576A

JUMPER TOGETHER FOR

Reads WFS potentiometer.

10K/2W

575A

577A

8

577A

534

21D

EXTRA TORQUE MACHINE

Communicates with optional timer kit.

550

4

R1

537

67F

530

622

607

608

606

605

601

EXTRA

576A

551

721

Controls motor speed with PWM.

577A

531

2

578

507

587

523

509A

500

555

TORQUE

Turns Gas Solenoid on, off, PWM.

WIRE FEED SPEED

0 VDC MIN. WFS

Reads the motor tachometer.

CONTROL

MOTOR

J6-9

+35V

5 VDC MAX. WFS

J4-11 J4-12 J4-6 J4-9 J4-7 J4-10 J4-2 J4-1J5-7

J5-6 J5-5

J6-2 J6-3

J6-4 J6-6

J6-10

+15V

J5-4 J5-3

J4-8

J4-5

J2-6

J2-3

J2-2

J2-5

J2-1

J2-7

J2-8

Operating Voltage= 15-110 VDC.

POTENTIOMETER

SUPPLY

J2-10

667

J5-1

100K

+5V

+15V

+15V

20

Shut down Voltage= 130 VDC.

ohm

10K

MOV

COM

TRIGGER

MACHINE

ohm

Thermal light turns on when shutdown voltage exceeded.

B1

B1

ohm

+5V

+15V

TRIGGER INTERLOCK / 2 STEP

CC/VV

OUTPUT

Code and Serial numbers are below Wire Drive on plastic

B2

ENABLE

CONTACTOR DRIVE

B2

COM

.05 uF

COLD FEED

housing Nameplate.

600 V

Thermal “Yellow” Light

MICRO

100K

+15V SPI

CONTROLLER

Motor Over Current

POWER

+5V SPI

METER

COM

ohm

Motor and trigger disabled for 30 seconds.

-15V

COMPENSATION

621

SUPPLY

+15V ISO

POLARITY

Must retrigger to start welding after 30 seconds pass.

721 IS DRIVEN NEGATIVE TO COMPENSATE

CIRCUIT

4B

LED

+5VDC

SENSE

FOR THE METER FOR DIODE DROP ERROR

Shutdown Voltage exceeded

(LOCATED AT OUTSIDE

ISO

35VDC

ON THE BRIDGE

+15

GAS

GAS PURGE

REAR OF FEEDER)

MOTOR

ON - OFF

May occur with some inverters.

SUPPLY

-15

0V = OFF

May occur with some CC machines with high

PUSHBUTTON

610

S4

OVER

POWER

DRIVE

BURNBACK

20msec ---- 250msec

inductance.

SWITCH (N.O.)

612

13.5 VDC WHEN

VOLTAGE

SUPPLY

PWM

DRIVE

Polarity “Green” Light

PROTECTION

On= Positive Polarity

NOT DEPRESSED

MOTOR

BRAKE

GAS

Off= Negative Polarity

(OUTSIDE

BRAKE DRIVE

MOTOR VOLTAGE

YELLOW THERMAL LED

FLOW

CIRCUIT

MOTOR CURRENT

BACK OF

0.05K

COM

+5V SPI

ENABLE

CASE)

15

ohm

25 TO 35

0-5V PULSE SIGNAL

TACH

POLARITY LED

COM

J6-14

B

2B

(LOCATED AT TOP

FREQUENCY = SPEED

FEEDBACK

13

NORMAL

0V = MIN SPEED

WIRE FEED

1B

FRONT OF FEEDER)

FLOW

J5-8

5V = MAX SPEED

SPEED

RATE

GAS PURGE

ARC ESTABLISHED

COM

YELLOW

+15V

COM

+35V

14

GREEN

BALL FLOAT

GAS SOLENOID

J6-11

1W

MOTOR

610

J6-7

16

THERMAL

POLARITY

USE MIDDLE

OF BALL TO

612

J6-1

PROGRAM

J6-12

2W

LED

LED

SET

J6-5

708

9

ADJUST VALVE

J4-3

FLOW METER

GAS

+5V SPI

FLEXIBLE POWER P.C. BOARD

-15V

5

+5V

MISO MOSI CS0

CS1 CS2

CS3 SCLK

+5V SPI

+15V

J6-8

707

GOOD FOR Ar, CO2,

SOLENOID

J4-4

COM

SCHEMATIC = G4783

CO2/Ar BLENDS

2 of 4

690

22 O COIL

(LOCATEDINSIDEOF

J3-8 J3-6

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

J3-7

J1-10

J1-2

J1-1

P7

0 VDC OPEN

CONTROLBOX)

+

RED

J17- J19- J13- J14- J15- J16- J18-

4 VDC CLOSED

691

12 VDC COIL

FAN BLOWS AIR ACROSS

FAN

BLACK

PROGRAMMING PCB

SPI DIGITAlL COMMUNICATION

PWM CONTROLLED

(LOCATED AT REAR

CONTROL PC BOARD

-

FACTORY USE ONLY

OF FEEDER)

CONTINOUSLY AT 6200 RPMS.

Model

Ranger 8,9

Classic

Multiweld, Rangers,

V350

DC-400, 600

Square Wave TIG 300/355

Miller Inverters

STT II

Note:

Vantages, Flextec

Most semiautomatic wire

K2613-5

Recommended

Recommended for

Recommended for CV

Recommended

Recommended

Not recommended for CC operation

Recommended

Not recommended

welding processes perform

better using constant voltage

K2613-7

all CV

CV operation.

and CC operation.

for CV

for CV and CC

because the customer may

for CV voltage

for STT operation.

power sources. Be sure the

operation.

(Wire Feed

operation.

operation.

experience short contactor life from

sense operation.

proper power source is used

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.

for your application. Contactor

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

life may be shortened in

MANUFACTURING TOLERANCE PER E2056

CONTROL: CLEVELAND

SCALE:

EQUIPMENT TYPE:

LN-25 PRO ANALOG

1

2

the welding

TIG starting.

applications using CC

UNLESS OTHERWISE SPECIFIED TOLERANCE:

machines with high OCV.

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

T. PEARN

NONE

PAGE ___ OF ___

procedure is

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

G5683-3

A.02

customer.

WITH PUBLISHED STANDARDS.

UNITS:

MATERIAL

APPROVAL

1/26/2011

PROJECT

REFERENCE:

DO NOT SCALE THIS DRAWING

APPROVED:

-

INCH

DISPOSITION: NA

DATE:

NUMBER:

XM6214-C

G5683-2

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

lN-25™ prO