ESAB POWERCUT-1250 Guide de dépannage télécharger pdf (Page 7)

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5.0 TROUBLESHOOTING

ELECTRIC SHOCK CAN KILL! Be sure that all primary power to the machine has been

externally disconnected. Open the line (wall) disconnect switch or circuit breaker before

attempting inspection or work inside of the power source.

Check the problem against the symptoms in the following troubleshooting guide. The remedy

may be quite simple. If the cause cannot be quickly located, shut o the input power, open

up the unit, and perform a simple visual inspection of all the components and wiring. Check

for secure terminal connections, loose or burned wiring or components, bulged or leaking

capacitors, or any other sign of damage or discoloration.

The cause of control malfunctions can be found by referring to the sequence of operations

and electrical schematic diagram and checking the various components. A volt-ohmmeter

will be necessary for some of these checks.

Voltages in plasma cutting equipment are high enough to cause serious injury or pos-

sibly death. Be particularly careful around equipment when the covers are removed.

NOTE: Before checking voltages in the circuit, disconnect the power from the high frequency PC

Board (PCB-2, Connector J2) to avoid damaging your voltmeter.

SECTION 5 TROUBLESHOOTING

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ESAB POWERCUT-1250 Guide de dépannage Page 7