ABB ACS800-04, Hardware Manual

Page: 7 / 118

Safety instructions
7
Grounding
These instructions are intended for all who are responsible for the grounding of the
drive.
•
At installation sites above 2000 m (6562 ft), the terminals of the RMIO board
and optional modules attached to the board do not fulfil the Protective Extra
Low Voltage (PELV) requirements stated in EN 50178.
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 interference.
•
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, ACS800-31: 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) and ACS800-02 in first environment: make a 360°
high frequency grounding of motor cable entries at the cabinet lead-through.
•
Do not install a drive with EMC filter E202 or +E200 (available for
ACS800-01 and ACS800-11, ACS800-31 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.