Frame R8I And Multiples - ABB ACS800 Hardware Manual

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Frame R8i and multiples

Frame R8i modules are used to achieve output powers from approximately 200 kW
upwards in single or parallel configurations. R8i modules run on wheels, and can
easily be removed from the cubicle for cable installation or service.
The DC input is located on the top front part of the module. The DC voltage is
connected to the input busbars either through fuses only or through a switch fuse
with charging control circuitry. Common mode filtering is implemented by running the
DC busbars through ferrite cores (optionally available).
The motor connection is via a quick connector at the back of the module that couples
when the module is inserted into the cubicle. From the connector, the cables can be
run directly through the bottom plate of the cubicle. Each parallel module is cabled
separately to the motor, or connected to a common output cubicle by busbars or
cables of equal length.
The modules are available with either an internally-supplied, speed-controlled fan, or
a fan supplied from an external three-phase (400 V) source. Internal du/dt filters are
also available. For information on whether du/dt filtering is necessary, see the
document ACS800 MultiDrive; Planning the Electrical Installation (3AFE 64783742
[English]). (du/dt filtering must be selected if a common motor terminal cubicle is
used. See the chapter Electrical installation.)
The drive control unit (type RDCU) containing the RMIO board is to be installed
separately.
Hardware description