instabus EIB
Technical product information
August 2010
Venetian blind switch N 523/02 5WG1 523-1AB02
4 x 230 V AC / 6 A
Siemens AG N 523/02, 4 pages Technical manual
Industry Sector, Building Technologies
Electrical Installation Technology © Siemens AG 2010 Update: http://www.siemens.com/gamma
P.O. Box 10 09 53, D-93009 Regensburg Subject to change without further notice
2.10.1.13/1
Product and functional description
The Venetian blind switch N 523/02 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 electronics
for disconnection at the limit positions can be connected
to a channel of the 4-fold Venetian blind switch
N 523/02. The parallel operation of several drives on one
channel requires the intermediate switching of a special
relay. Apart from moving the sun/anti-glare protection
into one of the two limit positions, the Venetian blind
can also be stopped and the slats can be adjusted step-
wise.
The power supply of the Venetian blind switch 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 an 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 safety alarm or protection mode (for
blocking the raising or lowering of the sun/anti-glare pro-
tection) is not taken into account.
Application program
The sunblind switch N 523/02 only works together with
the application program 25 A4 Sunblind switch 980103.
Due to its two 1 bit command objects which are always
available per channel, the program enables the move-
ment of a Venetian blind into the upper or lower limit
position, stopping the movement of the Venetian blind
as well as the stepwise adjustment of the slats. The ad-
justable period for gradually opening the slats or gradu-
ally raising the sunblind again once it has reached the
lower limit position only becomes into effect if the sun-
blind has been lowered from the upper limit position
without any interruptions.
When commissioning the sunblind switch the following
objects can be added to all the channels :
-one object “Move-up blockade On/Off“
(required e.g. for cleaning)
-one object “Move-down blockade On/Off”
(required e.g. for interior sun protection and when
the window is open)
-two 1 bit objects for saving/restoring two Venetian
blind/slat positions
-two 8 bit status objects (Venetian blind and slat posi-
tion as percentage values).
In connection with a weather station, in the event of a
wind or rain alarm it is ensured via an alarm object that
the sun/anti-glare protection is for example raised auto-
matically and that the lowering of it via the EIB is pre-
vented when there is an alarm.
It can further be selected whether the parameterisation
is adopted for all the channels or whether each channel
should be configured individually.
Connection example
Venetian blind switch N 523/02
instabusEIB
Bus coupling unit
venetian blind drives
venetian
blind
channel
D
venetian
blind
channel
C
venetian
blind
channel
B
venetian
blind
channel
A
K1
up
K2
down
K3
up
K4
down
K5
up
K6
down
K7
up
K8
down
L2
L1 N
power supply
