Grounding - ABB ACS800 Hardware Manual

Grounding

These instructions are intended for all who are responsible for the grounding of the
drive.
WARNING! Ignoring the following instructions can cause physical injury, death,
increased electromagnetic interference and equipment malfunction:
•
Ground the drive, motor and adjoining equipment to ensure personnel safety in
all circumstances, and to reduce electromagnetic emission and pick-up.
•
Make sure that grounding conductors are adequately sized as required by
safety regulations.
•
In a multiple-drive installation, connect each drive separately to protective
earth (PE).
•
ACS800-01, ACS800-11: In European CE compliant installations and in other
installations where EMC emissions must be minimized, make a 360° high
frequency grounding of cable entries in order to suppress electromagnetic
disturbances. In addition, connect the cable shields to protective earth (PE) in
order to meet safety regulations.
ACS800-04 (45 to 560 kW) in first environment: make a 360° high frequency
grounding of motor cable entries at the cabinet lead-through.
(ACS800-02: 360° high frequency grounding of cable entries is not required at
the drive end.)
•
Do not install a drive with EMC filter option +E202 or +E200 (available for
ACS800-01 and ACS800-11 only) on an ungrounded power system or a high-
resistance-grounded (over 30 ohms) power system.
Note:
•
Power cable shields are suitable for equipment grounding conductors only
when adequately sized to meet safety regulations.
•
As the normal leakage current of the drive is higher than 3.5 mA AC or 10 mA
DC (stated by EN 50178, 5.2.11.1), a fixed protective earth connection is
required.
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Safety instructions