ABB IMDS004 Bailey power module

Description

This instruction contains the following sections:
Introduction Contains an overview of the mounting unit, a hardware description, and performance and environmental specifications.
Description and
Operation
Describes and explains the functional and electronic operation
of the module mounting unit.
Installation Describes mounting procedures and location of the mounting
unit in the cabinet. Provides information on I/O, expander
bus, and module bus connectors as well as jumper settings for
segmenting Controlway or module bus. This section also contains a processor bus adapter bracket installation procedure
necessary to mount a processor bus adapter for a Harmony
bridge controller module.
Maintenance Provides a maintenance schedule.
Repair/Replacement
Procedures
Details how to replace the mounting unit backplane assembly.
It also contains the MMU parts list.
Support Services Describes the support services (training, documentation, etc.)

available from Elsag Bailey.
Read this instruction through in sequence. Read the installation section thoroughly. It is important to become familiar with
the entire content of this instruction before installing the modules in the mounting unit.
1. Read and perform all steps in the installation section.
2. Refer to the maintenance section for scheduled maintenance requirements.
3. Refer to the repair/replacement procedures section to find
instructions on how to replace the backplane printed circuit
board assembly or the mounting unit.
4. Refer to the repair/replacement procedures section for a
complete list of parts including part numbers and nomenclatures.
The module mounting unit is mounted to the cabinet mounting
rails using four 10-32 clip nuts and four 10-32 × 0.5-inch
screws. Notched flanges on the card chassis portion of the
mounting unit are used for mounting.
The IEMMU11 and IEMMU21 mount from the rear of the cabinet and the IEMMU12 and IEMMU22 mount from the front of
the cabinet.
The IEMMU11 and IEMMU21 mounting units provide physical
mounting for up to 12 system modules, or ten system modules
and a maximum of two power modules. The IEMMU12 and
IEMMU22 mounting units provide physical mounting for up to
12 system modules.

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