INSTALLATION | ||||
5. The work terminal must be connected to a ground | RECONNECT PROCEDURE |
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| within ten feet of the welder, using one of the fol- |
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| lowing methods. | The Invertec | ||
| a) A metal underground water pipe in direct con- | 230V or 460V supply. |
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| tact with the earth for ten feet or more. | Fuse the input circuit with time delay fuses or delay | |
| b) | A 3/4” (19mm) galvanized pipe or a 5/8” | type1 circuit breakers. Using fuses or circuit breakers | |
| smaller than recommended may result in “nuisance” | |||
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| (16mm) solid galvanized iron, steel or copper | ||
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| rod driven at least eight feet into the ground. | ing at high currents. |
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| The ground should be securely made and the | The Invertec | ||
| grounding cable should be as short as possible | |||
| using cable of the same size as the work cable, or | on an individual branch circuit. |
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| larger. Grounding to the building frame electrical |
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| conduit or a long pipe system can result in | Also called “inverse time” or “thermal/magnetic” circuit breakers. | ||
| ation, effectively making these members radiating | ¹ These circuit breakers have a delay in tripping action that | ||
| antennas. | decreases as the magnitude of the current increases. |
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6. Keep all panels securely in place. |
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7. All electrical conductors within 50 ft (15.2m) of the |
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| welder should be enclosed in grounded, rigid |
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| metallic conduit or equivalent shielding. Flexible |
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| metallic conduit is generally not suitable. |
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8. When the welder is enclosed in a metal building, |
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| several earth driven electrical grounds connected |
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| (as in 5b above) around the periphery of the build- |
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| ing are recommended. |
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Failure to observe these recommended installation |
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procedures can cause radio or TV interference prob- |
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lems. |
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INPUT CONNECTIONS |
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Be sure the voltage, phase, and frequency of the input |
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power is as specified on the rating plate, located on |
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the bottom of the machine. |
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| WARNING |
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| ELECTRIC SHOCK can kill. |
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| • Have a qualified electrician install |
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| and service this equipment. |
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| • Turn the input power OFF and unplug |
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| the machine from the receptacle |
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| before working on this equipment. |
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• Allow machine to sit for 5 minutes minimum to |
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allow the power capacitors to discharge before |
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working inside this equipment. |
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• Do not touch electrically hot parts. |
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• Machine must be plugged into a receptacle that |
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is grounded according to the National Electrical |
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Code and local codes. |
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• Do not remove or defeat the purpose of the |
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power cord ground pin. |
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