Operation Principle; Using The Main Switch-Disconnector - ABB ACS580-01 Installation Supplement Manual

10 EN – Main switch and EMC C1 filter options installation supplement

Operation principle

The EMC C1 filter (+E223 or +F316) is used for EMC compliance, see page 13.
The main switch-disconnector – called main switch in this supplement – (+F278 or
+F316) is used for switching off the input power of the drive and disconnecting the
drive securely from the AC power line.
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Using the main switch-disconnector

To use the main switch:
1. Stop the drive.
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2. Wait until the motor has stopped.
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3. Turn the main switch to the OFF position.
4. Attach a lock to the main switch. This is essential if you must work on the drive,
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motor or machinery.
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Note: It is best practice to stop the drive before opening the main switch to the OFF
position, even though the switch is dimensioned to withstand the full load current of
the drive.
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WARNING! The main switch (+F278 or +F316) does not isolate the input
cables and terminals from the input power supply. Before removing the front
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cover and working on the drive, isolate the input cables from the main supply at the
distribution board or by opening the disconnector of the supply transformer.
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WARNING! The maximum number of drive power-ups is five in ten minutes.
Too frequent power-ups can damage the charging circuit of the DC capacitors.
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