Checking the Earth Leakage Breakers
This section explains how to check the earth leakage breakers.
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If the earth leakage breakers are not functioning normally, contact your sales or service representative.
Some options are equipped with earth leakage breakers. For details about where they are located, see “Guide to Components”.
Once a year, check that the earth leakage breakers function properly. Normally, the breakers are in the On position.
Check all breakers in the same way.
Press the operation switch to turn off the power.
Turn off the main power.
Using a ballpoint pen or similar pointed object, press in the earth leakage breaker's test button.
Check that the earth leakage breaker moves to the Off position.
Return the earth leakage breaker to the On position.
Turn on the main power.
If an option does not become operational when you turn on the main power, check if any of its breakers are in the Off position. If any breaker is in the Off position, contact your sales or service representative. Do not reset the earth leakage breaker yourself.
