ABB ACS880-07CLC

Guidelines for planning the electrical
installation
Contents of this chapter
This chapter contains instructions for planning the electrical installation of the drive. Some
instructions are mandatory to follow in every installation, others provide useful information
that only concerns certain applications.
Limitation of liability
The installation must always be designed and made according to applicable local laws and
regulations. ABB does not assume any liability whatsoever for any installation which breaches
the local laws and/or other regulations. Furthermore, if the recommendations given by ABB
are not followed, the drive may experience problems that the warranty does not cover.
Selecting the supply transformer
The drive does not have input chokes. For this reason, the following requirements for the
supply transformer apply:
• Transformer impedance must suit the supply rectifier of the drive,
•
transformer reactance (X
k
) must be at least 4%, and
•
nominal apparent power of the transformer should not exceed 2 × S
N
of the drive.
Selecting the main disconnecting device
You must equip the drive with a main disconnecting device which meets the local safety
regulations.
To meet the European Union Directives, according to standard EN 60204-1, Safety of
Machinery, the disconnecting device must be one of the following types:
5
Guidelines for planning the electrical installation 65