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Operating Guide | VACON® 100 Wall-mounted Drives
SHOCK HAZARD FROM DC LINK OR EXTERNAL SOURCE
The terminal connections and the components of the drive can be live 5 minutes after the drive is disconnected from the mains
and the motor has stopped. Also the load side of the drive can generate voltage. A contact with this voltage can lead to death
or serious injury.
Before doing electrical work on the drive:
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Disconnect the drive from the mains and make sure that the motor has stopped.
•
Lock out and tag out the power source to the drive.
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Make sure that no external source generates unintended voltage during work.
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Wait 5 minutes before opening the cabinet door or the cover of the AC drive.
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Use a measuring device to make sure that there is no voltage.
SHOCK HAZARD FROM CONTROL TERMINALS
The control terminals can have a dangerous voltage also when the drive is disconnected from mains. A contact with this
voltage can lead to injury.
Make sure that there is no voltage in the control terminals before touching the control terminals.
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ACCIDENTAL MOTOR START
When there is a power-up, a power break, or a fault reset, the motor starts immediately if the start signal is active, unless the
pulse control for Start/Stop logic is selected. If the parameters, the applications or the software change, the I/O functions
(including the start inputs) can change. If you activate the auto reset function, the motor starts automatically after an automatic
fault reset. See the Application Guide. Failure to ensure that the motor, system, and any attached equipment are ready for start
can result in personal injury or equipment damage.
Disconnect the motor from the drive if an accidental start can be dangerous. Make sure that the equipment is safe to
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operate under any condition.
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
Ensure the correct grounding of the equipment by a certified electrical installer.
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SHOCK HAZARD FROM PE CONDUCTOR
The drive can cause a DC current in the PE conductor. Failure to use a residual current-operated protective (RCD) device Type B
or a residual current-operated monitoring (RCM) device can lead to the RCD not providing the intended protection and
therefore can result in death or serious injury.
Use a type B RCD or RCM device on the mains side of the drive.
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10 | Danfoss A/S © 2019.05
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