Description
Venetian blind actuator
The Venetian blind actuator N 523/04 is a DIN rail
mounted device in N-system dimensions with a width of
4 module units. Only one AC 230V drive (motor) with
electro-mechanical limit switches or with integrated elec-
tronics for disconnection at the limit positions can be
connected to a channel of the 4-fold Venetian blind ac-
tuator N 523/04. The parallel operation of several drives
on one channel requires the intermediate switching of a
special relay. Apart from the possibility to move the sun-/
sight guard directly into one of its two final positions (via
EIS 1 objects) it is also possible for both the sun blind and
the slats to be moved independently into intermediate
positions, defined in percentages, by positioning com-
mands (EIS 6 objects). This actuator may therefore be
used in projects with tracking of the sun Ìs position.
The power supply of the Venetian blind actuator elec-
tronics is carried out via an integrated power supply unit,
which is fed via the mains connection L1 for channels A
and B. The mains connection of channels C and D is car-
ried out via the connection L2. This enables two channels
to be connected to different external conductors. If this is
not required, one of the terminals L1 must be linked to
one of the terminals L2 via a wiring jumper.
For direct operation (also in the event of communi-
cations failure or if EIB communication has not yet been
put into operation), four pairs of push buttons are avail-
able on the top of the device. For direct operation, both
AC 230 V and bus voltage must be applied at the actua-
tor. Moreover, the actuator must be switched to direct
operation via the appropriate push button with a LED. In
direct operation mode, an output remains switched on
while the associated push button is pressed. As the direct
operation is completely isolated from the bus communi-
cation, any active alarm or blockade mode (for blocking
the raising or lowering of the sun/anti-glare protection) is
not taken into account.