Grounding - ABB ACS880 Series Supplement Manual
Drive module frames r1 to r9 for cabinet installation (options +p940 and +p944)
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Also See for ACS880 Series:
- Firmware manual (764 pages) ,
- Manual (646 pages) ,
- Quick start up manual (146 pages)
Table of Contents
14 Safety instructions
14 Safety instructions
Grounding
These instructions are for all personnel who are responsible for the grounding of the
drive.
WARNING! Obey these instructions. If you ignore them, injury or death, or
equipment malfunction can occur, and electromagnetic interference can
increase.
• If you are not a qualified electricial professional, do not do grounding work.
• Always ground the drive, the motor and adjoining equipment. This is necessary
for the personnel safety. Proper grounding also reduces electromagnetic emission
and interference.
• Make sure that the conductivity of the grounding conductors is sufficient. See
section Selecting the power cables in the hardware manual. Obey the local
regulations.
• Connect the power cable shields to protective earth (PE) of the drive to make sure
of personnel safety.
• Make a 360° grounding of the power and control cable shields at the cable entries
to suppress electromagnetic disturbances.
• In a multiple-drive installation, connect each drive separately to the protective
earth (PE) busbar of the switch board or the transformer.
Note:
• You can use power cable shields as grounding conductors only when their
conductivity is sufficient.
• Standard IEC/EN 61800-5-1 (section 4.3.5.5.2.) requires that as the normal touch
current of the drive is higher than 3.5 mA AC or 10 mA DC, you must use a fixed
protective earth (PE) connection. In addition,
•
install a second protective earth conductor of the same cross-sectional area
as the original protective earthing conductor,
or
•
install a protective earth conductor with a cross-section of at least 10 mm
2
or 16 mm
Al,
or
•
install a device which automatically disconnects the supply if the protective
earth conductor breaks.
2
Cu
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