Technical data

1.
This documentation shows the technical possibilities of
the DALI system for specific applications.
It provides a detailed account of the numerous functions
offered depending on the system's sensor configuration.
The new standard of the DALI protocol (Digital
Addressable Lighting Interface) defines digital
communication between electronic ballasts and control
units.When defining the standard, a firm option was
taken not to develop a complex building control system
with maximised functional capabilities, but to create
instead a simple system with clearly defined structures.
DALI is not designed for a complex bus system, but
rather for intelligent, high-performance light management
in a single room.These functions can of course be
integrated into a building management system by means
of suitable interfaces.
Industry standard
To ensure full compatibility between DALI components
from different manufacturers, the DALI protocol is being
standardised globally in accordance with IEC 929.
This will create the basis for marketing and using DALI
components worldwide without encountering vendor-
specific, national, or technical incompatibilities.
This standard is supported by globally-active and
renowned companies.
Light control
Since the DALI protocol has been designed for rooms
requiring professional light management, the following
functions have been defined:
Switching on / off Individual DALI electronic ballasts,
groups or all electronic ballasts in a
single system can be switched
on / off.
Dimming The dimmable electronic DALI ballast
is equipped with a technical facility for
dimming the lamp current
logarithmically from 100% to 0.1% in
125 dimming steps (in practice, the
lower dimming level is set at 3% so as
to ensure that the lamp service life is
not compromised).
Light scenes Up to 16 light scenes can be
programmed and retrieved in a single
DALI system.
Status display The DALI protocol can also be used
to display and / or retrieve statuses of
the electronic ballast or lamp.
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Introduction
DALI - the standard
2.
2.1
2.2