Description
Shutter switch (DC 24V, 4x1A)
The shutter switch N 524 is a DIN rail mounted device
with N-system dimensions and a width of 6 module units.
It can control up to four independent DC drives for the
positioning of roller shutters, venetian blinds, windows,
dampers or valves. Apart from the possibility to travel the
sun-/ sight guard directly into one of its two final posi-
tions it is also possible for both the shutter and its slats
to be moved independently into intermediate positions,
defined in percentages, by positioning commands (EIS 6
objects). The accuracy achieved by the positioning of the
sunblind or the slats depends on the constancy of the
DC voltage, the motor and the gear used and not on the
shutter switch N 524.
The N 524 is designed exclusively for the control of DC
drives with electromechanical limit switches. It is allowed
to connect several DC drives with electromechanical
limit switches in parallel to the same output (channel) of
the N 524 as long as the total current of 1 A per output is
not exceeded. It may be exceeded only for a short time
at the start of a positioning.
The travel time from one final position to the other has to
be measured and the corresponding software parameter
to be set to the measured value. When controlling ve-
netian blinds the positioning time from the vertical to the
horizontal slat position has to be measured and entered
as accurately as possible.
For supply of the drives controlled by the N 524 an ex-
ternal DC power supply has to be connected to the cor-
responding terminals of the N 524. The DC voltage
should be stabilised as voltage oscillations result in
speed oscillations of the drive (different travel times, in-
exact intermediate positions). The external DC power
supply may be rated between 6V and 24V. This means
that also drives with a rated voltage of 6V or 12V may be
controlled by the N 524. But all drives connected to the
same N 524 must be rated for the same voltage and the
max. allowed current of 1A per output must not be ex-
ceeded.
The electronics of the N 524 is supplied, independent of
the EIB bus voltage, via an integrated power supply unit
to be connected to AC 230V. It is therefore possible to
carry out shutter movement or slats adjustment inde-
pendently of the EIB as long as AC 230V and the DC
voltage are available.
There are two push buttons per channel on the front
plate of the shutter switch to enable local operation. This
is carried out via long and short push button actions in
the same way as for an EIB push button.