Planning And Installation - ABB -free home System Manual

03 Planning and Installation

03 Planning and Installation
System Access Point and power supply
(Fig. 1)
The System Access Point offers the opportunity for ac-
cessing the free@home system with the PC or mobile
terminal devices. This allows the functions of the system
to be programmed and remote controlled.
Each system requires a power supply. It uses the voltage
required by the bus subscribers for supplying the bus
communication part of the devices.
6 │
Decentralized or central installation of the
actuators (Fig. 2)
The free@home system offers both rail-mounting actua-
tors for central installation in the switch cabinet as well as
sensor/actuator units for decentralized flush-mounted
installation.
Both types of installation can be mixed within the system
as desired.
Advantages of the decentralized installation
» "All-in-one": Sensor and actuator are located in the
one device.
» Function does not need programming since sensor
and actuator have been pre-configured.
» Usual manner of wiring of the 230 V line.
Advantages of the central installation
» Inexpensive channel price due to multiple actuators.
» Easy installation of the sensor technology since only
the bus line is installed in the flush-mounted box.
ABB-free@home
System Manual
®