Product And Functional Overview - ABB i-bus KNX Product Manual

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ABB i-bus KNX
General
1.2

Product and functional overview

The ABB i-bus
installation in distribution boards.
The devices are used to control motors (230 V AC / 24 V DC) for sun protection products, e.g. blinds, roller
shutters, vertical blinds, awnings, roller blinds, curtains, etc. The control of blinds/shutters via electrical
drives not only saves the user the task of raising and lowering the roller shutters by hand but also enables
the implementation of fully automatic control. This type of control takes into consideration the time of day,
the strength of the sunlight, the temperature conditions, the wind speed, etc. and positions the blind/shutter
in accordance with these factors. The user can adjust this position manually to match their requirements
more precisely.
In addition, the devices are suitable for the control of ventilation flaps, skylights, doors, gates and other
products controlled via a drive.
The blind/roller shutter actuators are powered via the ABB i-bus
power supply. The connection to the KNX is established using the bus connection terminal.
The device variants with manual operation, JRA/S X.230.2.1, possess buttons on the front side. They are
used to cause the connected drive to adjust the blind/shutter manually, e.g. Move UP/DOWN, STOP and
slat OPEN/CLOSE in steps. The LEDs on the front side display the current travel direction, the current end
position and the status.
The device variants JRA/S X.230.5.1 and JRA/S 4.24.5.1 also offer manual operation using automatic
travel detection via current detection.
On all the 230 V AC blind/roller shutter actuators, the output contacts for the UP/DOWN travel directions
are interlocked electromechanically. Voltage applied simultaneously can lead to destruction of the drives.
The electromechanical interlocking ensures that voltage can never be present at both contacts
simultaneously. The pause on change in direction can be set using parameters.
The reaction on bus voltage failure and recovery and during programming can be set individually.
Type designation
Example JRA/S 4.230.5.1
JRA/S
Number of outputs
Nominal voltage
Hardware property
Version
w: Number of outputs (2, 4, or 8)
x: Nominal voltage (24 V or 230 V)
y: Hardware property
1 = Standard
2 = With manual operation
5 = With automatic travel detection and manual operation
z: Hardware version
6 2CDC 506 051 D0204 | JRA/S
®
Blind / Roller Shutter Actuators are modular installation devices in Pro M Design for
®
KNX and do not require an additional
w x y z
4
230
5
1