Lincoln Electric SVM179-B service manual Pushbutton

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G-10

ElECTriCal DiaGrams

G-10

sChEmaTiC - lN-25 prO - COmplETE maChiNE CODEs 11620, 11621, 11716, 11717 - (G5683-2) pG1

2-G5683

ENGINEERING CONTROLLED CHANGE DETAIL: RELEASED A.03 FROM "X".

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)

Motor is located

case front

67B

toroid2times.

2

R

Motor overcurrent limit varies with WFS.

-

531

behind

PLASTIC HOUSED BOLTED

strain relief

Located on

L4

531

3

U

glastic panel

667D

537

FEED

CONNECTION (BASE CENTER)

Before 2-20-2009

Case front

537

4

B

MOTOR /

PLATE

67C

Current

534

534

5

GEARBOX

67D

From Power Source

Level

IN HARNESS

551

6

B

copper bar

7

copper bar

weld cable

(Electrode Connection)

4.5

CENTER BASE

550

8

W

case back

3.5

MOTOR FILTER P.C.

AREA

67C

P9

TAKEN WITH 40 V INPUT

L12081 2.6 V @ 50 IPM

67C & 67D

gun connector

strain relief

67B

BOARD SCHEMATIC=

667D

27 V @ 700 IPM

IN CV MODE.

Preset

S27592 BEFORE 6/15/2009

Leads Pass

WFS

S27505 AFTER 6/15/2009

USED FOR FILTERING

L13084 2.6 V @ 25 IPM

TRIGGER CONNECTOR

J61-1

through

32 V @ 400 IPM

EXTRA TORQUE

J14

TRIGGER

INVERTER NOISE

toroid2times.

622A

A

INPUT

J61-2

14 PIN REMOTE

Located on Wire

500A

B

Drive Panel

TRIGGER INTERLOCK

C

Located on

After 2-20-2009

555A

J61-3

LEADS ARE

NOT

L5

(NOT PRESENT ON K2613-3)

S1, S2 & S3 Located

D

Case Front

Current

667E

PRESENT BUT

S1

622B

E

0V.=TRIGGER

Level

J61-4

NOT USED IN

USED

15V=2 STEP

on Wire Drive Panel

THIS UNIT.

J18

CLOSED

0V=TRIGGER

509E

15VDC.=TRIGGER

4.5

INTERLOCK

587

OPEN

3.5

B2

Trigger Interlock does not stop

509B

9

welding when the arc is broken.

2-STEP

10

Pull and release to end the weld.

509E

509D

Preset

B1

77C

S3

WFS

J62-1

J62-2

5

667B

0V=COLD FEED

S2

15V=CV

622

4

TIMER KIT P.C. BOARD

*Extra Torque

370

530

700

4

76C

ANALOG

530A

CC

0V=CC

2

509B

180*

257*

400*

3

75C

+

(N.O.)

500

(OPTIONAL)

The WFS range of the LN-25 PRO

J15

VOLTMETER

COLD FEED

SCHEMATIC = M21341

USED TO DISCHARGE

1

CV

555

Normal Speed = 40- 700 IPM.

6

21E

-

40V MAX.

3

4 O COIL

SEE PAGE 2

Extra Torque = 25- 400 IPM.

POWER SUPPLY CAP

509C

AFTER A HIGH VOLTAGE

2

721

523

1 of 4

0 VDC OPEN

WFS limited by arc voltage when operating across the arc

TRANSIENT. LATER

7

3 VDC CLOSED

607 608 606A 605 4B

509B 601

RELOCATED TO THE

8

P7

12 VDC COIL

Maximum WFS

621

CONTROL BOARD.

P7-1

P16

PWM CONTROLLED

Feeder Input Volts

Standard Gear

Extra Torque

4

2

3

1

3 of 4

Located under

15

280

210

NOT PRESENT

Located on

CONTACTOR

8

7 6 5

4

3

2

1

17

340

235

top of motor

Wire Drive Panel

P60

ON S27505

10

75C

21

440

400

24

520

400

11

76C

27

600

400

12

77C

P7

Connector located

Control Board Summary

4 of 4

behind case front

JUMPER TOGETHER FOR

Converts arc power to a usable control circuit voltage.

ISOLATED 2-4 TO

575A

6

575A

EXTRA TORQUE MACHINE

Receives switch signals from Trigger, Cold Feed, Gas Purge

LocatedonCaseFront

POWER SOURCE

576A

7

576A

Reads WFS potentiometer.

10K/2W

575A

577A

8

577A

534

550

21D

4

Communicates with optional timer kit.

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 J4-1

J5-7

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.

C1

600 V

Thermal “Yellow” Light

C2

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)

C1

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

C2

VOLTAGE

SUPPLY

PWM

DRIVE

Polarity “Green” Light

PROTECTION

On= Positive Polarity

NOT DEPRESSED

MOTOR

BRAKE

GAS

BRAKE

Off= Negative Polarity

(OUTSIDE

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

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

J1-2

J1-1

P7

0 VDC OPEN

CONTROLBOX)

+

RED

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

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

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 ANALOG

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

G5683-2

A

customer.

WITH PUBLISHED STANDARDS.

UNITS:

MATERIAL

APPROVAL

11/6/2009

PROJECT

REFERENCE:

DO NOT SCALE THIS DRAWING

APPROVED:

BS

INCH

DISPOSITION: UF

DATE:

NUMBER:

CRM40943

G5683-1

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

lN-25™ prO