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| INSTALLATION |
| RECONNECT PROCEDURE | OUTPUT CONNECTIONS |
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Multiple input voltage welders are shipped from the fac- tory connected for the highest voltage listed on the machine's rating plate. Before installing the welder, be sure the reconnect panel is connected for the proper voltage.
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 and change the position of the jumper links on the reconnect panel. Follow the input connection diagram, located on the inside access panel cover, appropriate for your machine's input volt- age. This same connection diagram is shown in Figure A.4 below.
CONNECT ELECTRODE AND WORK LEADS TO OUTPUT TERMINALS
The output (welding) cables are connected to the out- put terminals marked "+" and
See Table A.1 for recommended cable sizes for com- bined lengths of electrode and work cables.
FIGURE A.4
INPUT CONNECTION DIAGRAM FOR 230/460 VOLTS AC, 50/60 HZ
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| DUAL VOLTAGE MACHINE |
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| Do not operate with covers | Do not touch electrically live parts | INPUT SUPPLY CONNECTION DIAGRAM | |
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| removed |
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| IMPORTANT: CHANGE LINK POSITIONS AND PILOT TRANSFORMER CONNECTIONS. |
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| Disconnect input power before Only qualified persons should install, | |||
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| NOTE: MACHINES ARE SHIPPED FROM FACTORY CONNECTED FOR OVER 300 VOLTS | |||
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| servicing |
| use or service this equipment | |
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| CONNECTION FOR HIGHEST RATING PLATE VOLTAGE, 50 OR 60 HZ. | ||
LINK |
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| 1. TURN OFF THE INPUT POWER USING THE DISCONNECT SWITCH AT THE FUSE BOX. |
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| L3 | W CR1 |
| 2. DISCONNECT AND INSULATE THE H2 LEAD TERMINAL WITH TAPE TO PROVIDE AT |
LINES |
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| LEAST 600 VOLT INSULATION. | |
L2 | V |
| 3. CONNECT L1, L2 & L3 INPUT SUPPLY LINES AND H3 TRANSFORMER LEADS | ||
INPUT |
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CONTACTOR |
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| {L1 | U |
| TO THE INPUT SIDE OF THE CR1 CONTACTOR AS SHOWN. | |
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| 4. CONNECT TERMINAL MARKED TO GROUND PER LOCAL AND NATIONAL ELECTRIC | |||
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| GND | H1 | H2 | CODES. |
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| H3 | 5. MOUNT THE LINKS IN THE POSITIONS SHOWN WITH THE PROVIDED HEX NUTS. | |
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| PILOT |
| DOUBLE UP THE LINKS IN TWO OF THE POSITIONS TO SAVE THEM FOR FUTURE |
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| TRANSF. |
| USE. SECURE THE REMAINING HEX NUTS IN PLACE. |
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| CONNECTION FOR LOWEST RATING PLATE VOLTAGE, 50 OR 60 HZ. | ||
LINK |
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| 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 |
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| {L1 | U |
| TO THE INPUT SIDE OF THE CR1 CONTACTOR AS SHOWN. | |
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| GND | H1 |
| 4. CONNECT TERMINAL MARKED TO GROUND PER LOCAL AND NATIONAL ELECTRIC |
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| H2 | H3 | CODES. | |
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| PILOT |
| 5. MOUNT THE LINKS IN THE POSITIONS SHOWN WITH THE PROVIDED HEX NUTS. |
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| TRANSF. |
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THE LINCOLN ELECTRIC CO., CLEVELAND OHIO U.S.A.
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