l
IEC 60364
l
IEC 60664
l
Accident prevention national, regional and local regulations for the site where the system or
machine will be operated
2.3 Electrical Hazards
WARNING: Electrical hazard - AVERTISSEMENT: risque électrique
High voltage may be present, which can result in death or serious injury to
personnel, or damage to equipment.
Ø Follow these safety instructions.
Certain electrical systems have to be maintained and cleaned by staff. Before they can be accessed,
the systems have to be disconnected from the mains supply to eliminate electrical hazards to
operating staff. According to the state of technology, this is accomplished with the five safety rules of
DIN VDE 0105-100.
1.
Disconnect the mains.
2.
Secure against reconnection.
3.
Verify that the system is dead.
4.
Carry out earthing and short circuiting.
5.
Provide protection from adjacent live parts.
2.3.1 Voltage Arcs and High Voltage
Voltage arcs may occur and/or high voltage may be present that can fatally or seriously harm
personnel or damage equipment. Additionally, the drive's capacitors can have dangerous voltages
present up to eight minutes after the removal of the mains voltage.
l Never attempt to remove safety covers, or loosen or disconnect the electrical connections when
the DM2020 system is powered up,
l
Never attempt to perform any cleaning or maintenance operations when the DM2020 system
is powered up.
l Always ensure that the mains power supply is disconnected and locked out before attempting
any work on the system.
l Always wait at least eight minutes after disconnecting and locking out the AC mains power
before attempting to work on the DM2020 system equipment. The DM2020 capacitors can still
have dangerous voltages present up to eight minutes after power is switched off.
l Always measure the voltage of the direct current circuit (BUS) and wait until the voltage drops
below 40V.
l Always measure the voltage of any other contact point(s) to ensure the power is off and there
is no voltage present.
PN: L-MAM2-E-201
Moog Casella DM2020 Installation and Startup Guide
2.3 Electrical Hazards
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