Topology Of The Bus System; Installation - HomeMatic HMW-IO-12-Sw14-DR Montageanleitung Und Bedienungsanleitung

General information on bus system

5.2 Topology of the bus system

The HMW components should always be mounted in
groups of sub-divisions to provide a better overview.
The number of sub-divisions that is appropriate de-
pends on the type and size of the project and is to be
defined accordingly. Installing at least one sub-division
on each level is recommended. Larger buildings may
require planning several sub-divisions per level (e.g.
separate for every floor). All load and control wiring
should also be run in a star format to the respective
subdivisions.
The power supply is done through a DIN rail power
supply HMW-Sys-PS7-DR or another 24 V power
supply dimensioned according to the number and total
current consumption of all existing modules in the
respective sub-division. If central programming and
control is to be done through the HomeMatic central
control unit, the HMW bus lines for the individual sub-
divisions and the lines coming from the control PC or
a central control unit should be run together in a room
according to available space in order to achieve a se-
paration of the individual bus segments and to simplify
troubleshooting if necessary. Normally, this is the room
in which the HomeMatic system central control unit is
installed.
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Installation

Observe the installation instructions for installations in
distribution systems (DIN VDE 0100-410).
Only to be installed by persons with the
relevant electro-technical knowledge and
(*1)
experience!
Incorrect installation can put your own life at
risk and the lives of other users of the
electrical system.
Incorrect installation also means that you are
running the risk of serious damage to
property, e.g. because of a fire. You may be
personally liable in the event of injuries or
damage to property. Contact an electrical
installer!
(*1)
Specialist knowledge required for installation.
The following specialist knowledge is particularly
important during installation:
• The ‚5 safety rules' to be used:
- Disconnect from mains;
- Safeguard from switching on again;
Installation
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