A-6

A-6

INSTALLATION

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RECONNECT PROCEDURE

Multiple input voltage welders are shipped connected for the highest voltage listed on the machine’s rating plate. Before installing the welder, be sure the recon- nect panel is connected for the proper voltage.

CAUTION

Failure to follow these instructions can cause immedi- ate failure of components in the welder.

To reconnect a multiple voltage machine to a different voltage, remove input power. Follow the input con- nection diagram, located on the inside access panel cover, appropriate for your machine’s input voltage. These same connection diagrams are shown below.

For 208, 208/230 & 230/460 volts AC - see Figure A.4.

For 230/460/575 volts AC - see Figure A.5.

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FIGURE A.4 - INPUT CONNECTION DIAGRAM FOR 208, 208/230 and 230/460 VOLTS AC, 50/60 HZ

 

 

 

 

 

DUAL VOLTAGE MACHINE

 

 

Do not operate with covers

Do not touch electrically live parts

INPUT SUPPLY CONNECTION DIAGRAM

 

 

removed

 

 

IMPORTANT: CHANGE LINK POSITIONS AND PILOT TRANSFORMER CONNECTIONS.

 

 

Disconnect input power before Only qualified persons should install,

 

 

NOTE: MACHINES ARE SHIPPED FROM FACTORY CONNECTED FOR OVER 300 VOLTS

 

 

servicing

 

use or service this equipment

 

 

 

CONNECTION FOR HIGHEST RATING PLATE VOLTAGE, 50 OR 60 HZ.

LINK

 

 

 

 

1. TURN OFF THE INPUT POWER USING THE DISCONNECT SWITCH AT THE FUSE BOX.

 

 

L3

W CR1

 

2. DISCONNECT AND INSULATE THE H2 LEAD TERMINAL WITH TAPE TO PROVIDE AT

LINES

 

 

 

LEAST 600 VOLT INSULATION.

L2

V

 

3. CONNECT L1, L2 & L3 INPUT SUPPLY LINES AND H3 TRANSFORMER LEADS

INPUT

 

CONTACTOR

 

 

{L1

U

 

TO THE INPUT SIDE OF THE CR1 CONTACTOR AS SHOWN.

 

 

4. CONNECT TERMINAL MARKED TO GROUND PER LOCAL AND NATIONAL ELECTRIC

 

 

GND

H1

H2

CODES.

 

 

 

H3

5. MOUNT THE LINKS IN THE POSITIONS SHOWN WITH THE PROVIDED HEX NUTS.

 

 

 

PILOT

 

DOUBLE UP THE LINKS IN TWO OF THE POSITIONS TO SAVE THEM FOR FUTURE

 

 

 

TRANSF.

 

USE. SECURE THE REMAINING HEX NUTS IN PLACE.

 

 

 

CONNECTION FOR LOWEST RATING PLATE VOLTAGE, 50 OR 60 HZ.

LINK

 

 

 

 

1. TURN OFF THE INPUT POWER USING THE DISCONNECT SWITCH AT THE FUSE BOX.

LINES

L3

W CR1

 

2. DISCONNECT AND INSULATE THE H3 LEAD TERMINAL WITH TAPE TO PROVIDE AT

L2

V

 

LEAST 600 VOLT INSULATION.

INPUT

 

3. CONNECT L1, L2 & L3 INPUT SUPPLY LINES AND H2 TRANSFORMER LEADS

CONTACTOR

 

 

{L1

U

 

TO THE INPUT SIDE OF THE CR1 CONTACTOR AS SHOWN.

 

 

GND

H1

 

4. CONNECT TERMINAL MARKED TO GROUND PER LOCAL AND NATIONAL ELECTRIC

 

 

H2

H3

CODES.

 

 

 

 

 

 

 

PILOT

 

5. MOUNT THE LINKS IN THE POSITIONS SHOWN WITH THE PROVIDED HEX NUTS.

 

 

 

TRANSF.

 

 

THE LINCOLN ELECTRIC CO., CLEVELAND OHIO U.S.A. 3-17-95E

M15009

IDEALARC DC-400

LINCOLN ®

ELECTRIC

Page 12
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Lincoln Electric SVM 122-A service manual Reconnect Procedure, Input Supply Connection Diagram