Lincoln Electric SVM175-A service manual +12V Isolated Circuitry for Engine Functions

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G-12

ELECTRICAL

DIAGRAMS

G-12

SCHEMATIC - ENTIRE MACHINE - CODE 10926 (L11946) PAGE

2 OF

2

L11946

ENGINEERING CONTROLLED CHANGE DETAIL: RELEASED FROM "X"

MANUFACTURER:

No

TRANSFORMER

+15V

AUXILIARY

J3-3

AUXILLARY

CURRENT

SENSE

SENSE

+5V

WELDING

TOROID

J3-4

+ STUD

+

J3-8

+3.3V

CONTROL BOARD

+15V

TERMINAL

(2)

40-100VDC

CONTROL

J1-4

POWER FROM

SWITCH

CHOPPER BOARD

INPUT

SHOWN IN "ALWAYS

(4)

J1-3

2-4 SENSE

-

J3-16

-15V

ON" POSITION

+15V

+ STUD

+12V ISOLATED CIRCUITRY FOR ENGINE FUNCTIONS

IDLER

+15V

+15V COM

(253)

SILVER

(NOT ALL MACHINES USE EVERY CIRCUIT)

J3-7

+ STUD

J3-6

THERMAL

V-BATTERY

+12V Battery Supply to

CONTROL

J3-14

IDLE SWITCH SENSE

THERMAL LAMP

J3-13

PROTECTION

IDLE

SHOWN IN "HIGH" POSITION

(252)

GOLD

INDICATOR

the Idle Hold Solenoid

+15V

IDLE HOLD COIL

J2-6

1

SOLENOID

+ STUD

J2-5

+ STUD

DIODE ONLY ON -E

2

RED

HOLD

THERMOSTAT(IF USED)

J3-5

THERMAL SENSE (if used)

+15V

+15V COM

Other side of the Idle Hold Solenoid.

IDLE CONTROL

IDLE CONTROL

FRAME FRAME IS COMMON FOR

VERSION AND ABOVE

COIL

J3-1

ENGINE CONTROL CIRCUITS

+0V when energized "LOW IDLE" +12V

3

+15V

THERMAL SHUTDOWN (if used)

when not energized. "HIGH IDLE"

BLK

+ STUD

CURRENT LIMITS

4

WHT

PULL

J1-13

REGULATION MODE

TO IDLE PULL COIL BOARD

FRAME

COIL

MACHINE IDENTITY TABLE:

J1-12

MACH SEL 1

ON / OFF (+5V=ON)

J4-1

J2-12

HIGH = PULL TO LOW IDLE

J1-8

J2-4

PINS JUMPERED TO SELECT MACHINE

MACHINE /

HOLD (+5V=HOLD)

J4-2

FOR AUX USE: CONNECT

J1-5 J1-6 J1-7

J1-8

MACHINE

J1-7

MACH SEL 2

J1-13

RANGER 250 G&D

J4-3

FRAME

TO FRAME FOR HIGH IDLE

J1-13

RANGER 305 G&D

MODE

BLINK (PULLED LOW AND HIGH

J4-4

VANTAGE 500

J1-6

MACH SEL 3

+ STUD

RANGER OIL PRESSURE

J2-9

V-BATTERY

J1-13

VANTAGE 575

LOGIC

IN LOOKBACK TO FLASH

J4-5

AMMETER

PULL COIL

J1-13

AIR VANTAGE 500

J1-5

MACH SEL 4

DECIMAL POINT)

J4-6

V-BATTERY

(CPU)

J4-7

DISPLAY

BOARD

+15V

J4-8

METER (+) INPUT (0 - 2V) 1V = 1000 ON METER

STARTER BUTTON

+ STUD

J4-9

+12V when starting the machine. (RUN switch ON and

J7-16

J4-10

METER (-) INPUT

J2-8

Start Button Pressed and held., 0V when the machine

J7-15

TIG MODE

+ STUD

METERS OPTIONAL ON VANTAGE

is not ON. +40V or more when the machine is running.

ON / OFF (+5V=ON)

J5-1

NO J4 OR J5 ON RANGER 250

PTC

FRAME

J2-1

+

-

HOLD(+5V=HOLD)

FUEL SHUTDOWN J2-10

TIG

J7-14

PIPE MODE

J5-2

POSITIVE

NEGATIVE

4

(NOT AVAILABLE ON AUSTRALIAN

J5-3

+12V when the RUN switch is ON and the

BRUSH

BRUSH

VANTAGE 575)

MODE

CC

J7-13

N/A

BLINK (PULLED LOW AND HIGH

J5-4

START Button is held IN. If externally shorted

3

the PTC will change to high impedance

SELECTOR

IN LOOKBACK TO FLASH

J5-5

FRAME

ROTOR

SWITCH

A

J7-12

N/A

DECIMAL POINT)

J5-6

VOLTMETER

(AUSTRAILIAN

VANTAGE 575 USES A

2

J5-7

DISPLAY

3 POSITION TOGGLE

PIPE

J7-11

N/A

J5-8

+15V COM

SWITCH)

1

METER (+) INPUT (0 - 2V) 1V = 100.0 ON METER

J5-9

V-BATTERY

J2-2

CV

J7-9

CV MODE

J5-10

METER (-) INPUT

CURRENT

SELECT CONTROL POINT

+ STUD

+

BATTERY

ROCV ENABLE

LIMITS,

J2-7

-

CHARGE

J7-10

CURRENT FEEDBACK

AVERAGE,

BATTERY POSITIVE

VREF

LAMP

(FOR AUSTRALIAN VANTAGE 575)

+

+

+15V

CURRENT FEEDBACK

DISPLAY WELD AMPS

ABSOLUTE,

THERMAL

BATTERY -NEGATIVE

J2-3

J2-11

+ STUD

J7-2

+ STUD

& FOLDBACK

+15V when the battery charge light is "OFF"

FRAME

(Machine running, alternator charging

G4107

SHUTDOWN

battery, +1.5V when battery charge light is

(ONLY)

PRESET

DISPLAY

FRAME

"ON" (Battery Low/Not charging and for a few

seconds when machine is turned off)

-

J6-2

-

PRESET

(206S)

G4109

CURRENT FEEDBACK

VOLTAGE

VALUE

SHUNT

50mV = 400 AMPS

47.5 ohms

(ONLY)

+

#1

x80

FEEDBACK

47.5 ohm

+

(204S)

J6-1

DISPLAY WELD VOLTS

FEEDBACK

J3-9

PWM SIGNAL (+12V ON MULTIMETER)

CHOPPER

-

+ STUD

+ STUD is COMMON

PWM

47.5 ohm

PWM SIGNAL (+12V)

BOARD

FOR WELD CONTROL

J3-11

(ALL MACHINES)

- STUD

(208B)

J3-15

CIRCUITS

VOLTAGE FEEDBACK

REGULATING

CHOPPER

47.5 ohm

CONTROL POINT

AMPLIFIER

CONTROL

J3-10

PWM COMMON

#2

+5V

+5V

CIRCUIT

47.5 ohm

J3-12

PWM COMMON

CHOPPER

+ STUD

+ STUD

BOARD

(277)

J7-8

(VANTAGE ONLY)

+ STUD

ARC CONTROL

10K

(278)

ARC

J7-7

CONTROL

POT

(279)

J7-6

CIRCUITRY

+10V

+ STUD

+ STUD

OCV

(77)

J7-1

TOUCH START

OUTPUT

10K

(76)

J7-4

VARIABLE PINCH

CONTROL

CONTROL

POT

PIPE ARC FORCE

(75)

VARIABLE ARC FORCE

POINT

SEE SPECIFIC MACHINE SCHEMATIC FOR DETAILS ON

SELECT

THE TOP END OF THE REMOTE POT IN

J7-5

LOCAL

PRESET

FIXED ARC FORCE

WHAT PARTS OF THE G4107/G4109ARE USED IN EACH

LEAD COLOR CODE:

COMPONENT VALUE UNITS:

TIG MODE IS THE SETTING OF THE LOCAL

PRESET

CONNECTORS

APPLICATION. NOT ALL CIRCUITS ARE USED ALL THE TIME.

B-BLACK

CAPACITOR: MFD/VOLTS

OUTPUT CONTROL POT.

+ STUD

IN EVERY OTHER MODE, THE REMOTE

TIG MODE

+10V

FIXED HOT START

J1 AMPHENOL & MACHINE ID JUMPER

G-GREEN

RESISTOR: OHMS/WATTS

REMOTE

+5V

J2 ENGINE 12V CONTROL FUNCTIONS

O-ORANGE

POT WILL SET MACHINETO MAX OUTPUT.

(77B)

J1-11

J3 CHOPPER PWM, POWER IN, (THERMAL OVERLOAD IF USED), VOLTAGE FEEDBACK

R-RED

CONNECTOR PIN NUMBERS:

U-BLUE

REMOTE

10K

(76B)

ALL OTHER MODES

+ STUD

J4 AMMETER (NO CONNECTOR ON RANGER 250)

W-WHITE

EX. 12 PIN CONNECTOR

J1-14

J5 VOLTMETER (NO CONNECTOR ON RANGER 250)

Y-YELLOW

1 2

6

CONTROL

POT

J6 SHUNT/CURRENT FEEDBACK

LABELS:

(75B)

J1-10

J7 OUTPUT CONTROL, ARC FORCE, MODE SELECT

COMMON

7

12

FRAME GROUND

LATCH

+ STUD

+ STUD

EARTH GROUND

VIEW OF CONNECTOR ONPC BOARD

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.

UNLESS OTHERWISE SPECIFIED TOLERANCE

DESIGN INFORMATION

REFERENCE: EQUIPMENT TYPE:

RANGER 305D

12

2

MANUFACTURING TOLERANCE PER E2056

ON 2 PLACE DECIMALS IS ± .02

DRAWN BY:

BAM

L11943

PAGE _ _ OF ___

ON 3 PLACE DECIMALS IS ± .002

SUBJECT:

MACHINE SCHEMATIC

DOCUMENT

DOCUMENT

ON ALL ANGLES IS ± .5 OF A DEGREE

ENGINEER:

BAM

SCALE:

NUMBER:

REVISION:

SOLIDEDGE

EN-168

MATERIAL TOLERANCE ("t ") TO AGREE

APPROVAL

WITH PUBLISHED STANDARDS.

-

NONE

MATERIAL

NA

2/5/03

PROJECT

CRM33549

L11946

A

DO NOT SCALE THIS DRAWING APPROVED:

DISPOSITION:

DATE:

NUMBER:

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

RANGER 305D