Lincoln Electric SVM114-C service manual LN-25 Across the ARC Model

TOC

TOC

G-6	ELECTRICAL DIAGRAMS	G-6
SCHEMATIC - COMPLETE MACHINE - CODES ABOVE 11140 (G5366)

Return to Section

Return to Master

G5366	ENGINEERING CONTROLLED
	MANUFACTURER:	No

CHANGE DETAIL: NEW

LN-25 ACROSS THE ARC MODEL		Input Power
		15V-110VDC
CODES 11144,11145,11146					+35V		INPUT VOLTAGE
							MONITOR
				ARC
				VOLTAGE
			21	FEEDBACK		COM
		67	S1
				CC
				SENSE	COM
							+VM
					+Vin		+35V
						POWER	+15V
	Gas Solenoid				COM
				667 J1-1		SUPPLY	+13.5V
					+
							+5V
					Vin
Wire Drive	Circuit		VOLTM ETER		.05uF		+15V_ISO
					-
				621 J1-3
					COM
Circuit							ISO
							MOTOR SUPPLY
							VOLTAGE MONITOR

LN-25 FEEDHEAD

P.C. BOARD

SchematicG4616

+35V

J14-1

4.5 A PEAK	J14-9
CURRENT
LIMIT
	COM
	+Vin
	J3-10
	J3-14

CAVITY NUMBERING SEQUENCE GENERAL INFORMATION
(COMPONENT SIDE OF P.C. BOARD)
					ELECTRICAL SYMBOLS PER E1537
1	2	1	3	1	5
J1		J2		J14	COLOR CODE
					B -	BLACK
3	4	4	6	6	10	WHITE
1		7		1	R -	RED
					8	BLUE
J4				J3	U -
8		14		9	16

NOTE:

OLDER OPTION BOARDS MAY BE LEFT

IN CIRCUIT OR REMOVED. IF REMOVED,

A PROPER JUMPER PLUG NEEDS TO BE

INSTALLED.

U

U

				OLD
				CONTACTOR BD
				(optional)
				to Timer Bd	(500)
		(667)			(621)
667 JS
	JC	(624)	+V	C LOGIC
624
	JR
		(624)	+V	(621)
			REMOTE BD
			(optional)

Return to Section TOC

Return to Master TOC

21

TOROID

21

(MOTOR FETS ARE

+ VM

COM

Positive

BOTH OFF WHEN INPUT

AVERAGE

VOLTAGE DROPS

DRIVE

CURRENT

PWM

LIMITING

TOROID

TOROID

BELOW 20V)

MOTOR

IM AVG MOTOR VSENSE

Voltage

CONTROL

PULSE BY PULSE

ARC VSENSE

+35V SENSE

J2

BRAKE

PEAK CURRENT

8

Motor+

541J4-14

COM

LIMIT

Motor-

BRAKEDRV

SENSECC

CONTDRV

Feedback

7

539 J4-13

+35V

552

GasSolenoid+

690 J2-3

.05

MeasureBtoU

4.25VDC whengasflowing

GasSolenoid-

691 J2-6

130Hz@ 50in/min

COM

VIM_PEAK

W B

1.85kHz@ 700in/min

Coilmeasures21ohms

PWM_DRV

GAS

PWM controled

COM

MOT OR /

553

SOL_DRV

SOLENOID

+13.5V

Locatedunder thecover

PSOC

GEARBOX

TOROID

1

13.5VDC TachSupply

512 J4-5

1.9VDC @ 50in/min

2

at therear of thefeeder

10K

20.1VDC @ 700in/min

R

3

TachSignal

555 J4-12

TACHOMETER

Locatedbehindtheinsulating

8secaverageCurrentlmitTACH. U

4

TachCOM

500 J4-7

(Limitissoftwareset)=3.5Amps

B

5

wiredrivepanel. Removethe

6

COM

wiredriveably togainaccess.

Access this connector

WIRE FEED SPEED

10K

+5V

by removingthewire

CONTROL

Ohms

POT Supply

631 J4-9

driveasbly.

POTENTIOM ETER

1

W iper

WFS POT

2

632 J4-1

		J3-6
		J3-15
		COM
	+13.5V	+13.5V
		J14-4
ACTIVATE	COM P	J14-8
		J14-2
SOLENOID
	REF
		COM
	+13.5V	+13.5V
		J3-13
		J3-1
ACTIVATE	COM P	J3-11
FEEDER
	REF
		J14-10
	TRIGGER	J14-5
		J3-3
	LOGIC	J3-12

621 500

TIMER BD

(512)

(optional)

512

606

JT

(606)

TIMER

(500)

500

JR

OLD CONTACTOR BD

(optional)

512

(512)

+V

(606)

606

C LOGIC

530

JS

JC

(530)

JR

TIMER

TIMER BD

(530A)

530

(530)

(optional)

530A

JS

JT

TIMER

(530A)

530A

JS

JC

530A

JR

OLD

OLD

REMOTE BD (optional)

(512) +V

(606)

TIMER

(530)C LOGIC

(530A)

WORK

CLIP

TOROID

67

Locatedbehindthewiredrive (EuropeanModels Only)

MO V ASBLY

Not aPC board; no schemati.

1M ohms 1M ohms

GND-S1 GND-S2 GND-S5

Locatedonthecasefront. Removethewiredrive asbly togainaccess.

3	COM		100K
		633 J4-8
	WipertoCOM		COM
N.C.	5VDC at700ipm
	0VDC at50ipm		SWITCH
			INPUTS
			COM
	WFS RANGE		COM
			COM	COM

			REMOTE BD
			(optional)
COM				+V
J3-16 622			(622)	(622A)
		JS	JR
J3-5	622A	JC*
J1-4	622A
COM

J3

FEEDPLATE

.0047/.005 mfd,	.0047/.005 mfd,
1400VDC	1400VDC

523B J4-4

+13.5V

522J4-10

	J1-2 500A
3.3K
	J3-8 500A	JS	JR
		JC*

A

B

Locatedonthelower left of thefront of thecase.

Locatedbehind theglasticpanel next tothemotor.

WFS

Control

Circuit

Locatedonfront of case,		J2-1 J14-7 J4-3						J4-11 J14-6 J2-4
aboveWFScontrol knob.
	621 500 509					523			530 608
TheWFSswitchshowninlowrange.
			GasPurge ColdInch Mode
ThelowWFSrangeis50-350in/min.
ThehighWFSrangeis50-700in/min.
					509		523
				MODE

For programmingat LECo

factoryonly.

Not fieldreprogrammable.

DATA SCLK XRES /SS MOSI

J2-2 J2-5 J4-6 J3-2 J3-4

	J3-7	500		(500) (500A)
COM
			COM		-DC
				OLD
			REMOTE BD
			(optional)

C
D	GUN TRIGGER
E	INPUT

TRIGGER

CONNECTOR

Trigger

13.5VDC whenOpen, 0VDC whenTriggerClosed

Input

Voltage

Protection

Bussbarfrom input
studtocontactor
	CONTACTOR
	300A 60%
	250A 100%
	Coilmeasures4.4ohms.578
	0VDC Open	507
INPUT ELECTRODE		Contactor
	12VDC coil
	3.0VDC Closed
CABLE CONNECTION	PWM Controled

CC CV

Themodeswitchis showninCCmode. Locatedinsidecase.

COLD

INCH N.O.

500(B) 530(B)

Locatedinsidecase belowvoltmeter.

PURGE N.O.

Gun Trigger Circuit

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

N.A.CAVITY NUM BERING SEQUENCE AS VIEWED FROM COM PONENT SIDE OF BOARD.

621

608

Locatedonrear

N.B.CAVITY NUM BERING SEQUENCE AS VIEWED FROM LEAD SIDE OF CONNECTOR.

of case.

N.C. OGGLET SWITCHES AND POTENTIOM ETERS SHOWN FROM CONNECTION SIDE OF SWITCH.

OPTION BOARD EXPLANATION

TherearethreeoptionalboardsavaiablefortheLN-25.Thewiringassociated

withtheseboardssindicatedbydashedlines.andtheabbreviationsareas

Inch/Purge/Mode

folows:

Model

Ranger 8,9

Classic

Commander 300,400,500

(Common Digital

DC-400, 600

300/355

Miller Inverters

STT II

Most semiautomatic wire

JS -StandardWiring,NoOptionBoardsInstaled.Thiswiringjumpermustbeinstaledifremotekitisnotpresent.

Ranger 250, 305

V350

Square Wave TIG

Note:

(Common Analog

Controls)

welding processes

Input Switches

JC -OptionalContactorBoard.

Controls)

perform better using

JR -OptionalRemoteBoard.

K449

Recommended

Recommended for CV

Recommended for CV

Recommended for

Recommended

Not recommended

Recommended

Not recommended

constant voltage power

JT-OptionalTimerBoard.Iftimerkitisnotinstaled,andremoteboardisnotpresent,thenjumpersinstaledinJ11.

Across the Arc

all CV operation.

operation. (Wire

operation.

CV operation.

for CV and CC

for CC operation

for CV voltage

for STT operation.

sources. Be sure the

Ifremoteboardispresent,thenjumpersinstaledinJ6ofremoteboard.

Feed Module

Not recommended

operation.

because the

sense

proper power source is

Required)

for use when

customer may

operation.

used for your application.

TheOptionalBoardsaredividedonthisprintforclarity.

pulse welding.

experience short

Not

Contactor life may be

contactor life from

recommended

shortened in applications

inductive nature of

for use when

using CC machines with

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

the power source.

pulse welding.

high OCV.

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

Not recommended

MANUFACTURING TOLERANCE PER E2056

DESIGN INFORMATION

REFERENCE:

EQUIPMENT TYPE:

LN-25 (ACROSS THE ARC)

1

1

EDGE

UNLESS OTHERWISE SPECIFIED TOLERANCE:

with high frequency

ON 2 PLACE DECIMALS IS ± .02

G4198-1

PAGE ___ OF ___

DRAWN BY: M. DIDION

ON 3 PLACE DECIMALS IS ± .002

SUBJECT:

MACHINE SCHEMATIC

DOCUMENT

DOCUMENT

TIG starting.

ON ALL ANGLES IS ± .5 OF A DEGREE

NUMBER:

REVISION:

SOLID

EN-170

ENGINEER: M. DIDION

SCALE:

MATERIAL TOLERANCE ("t") TO AGREE

G5366

A

WITH PUBLISHED STANDARDS.

MATERIAL

APPROVAL

PROJECT

DO NOT SCALE THIS DRAWING

APPROVED:

NONE

DISPOSITION: NA

DATE:

10/4/2004

NUMBER: CRM36946

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

¤