ABB i-bus KNX Product Manual - 2 Device
ABB i-bus
KNX
Device Technology
VAA/S x.230.2.1 | 2CDC 508 101 D0201 7
2 Device
Technology
VAA/S 6.230.2.1
The Valve Drive Actuators VAA/S are
modular installation devices in Pro M
Design for installation in the distribution
board on 35 mm mounting rails. The
devices feature six or twelve
semiconductor outputs for control of
Thermoelectric Valve Drives in heating
and cooling systems. The outputs can be
operated at 24…230 V AC.
The outputs are short-circuit and overload
protected.
The outputs can be directly controlled
using the manual buttons. The LEDs on
the front of the device signal the status
of the outputs.
The connection to the ABB i-bus
®
KNX
is implemented via a bus connection
terminal.
The devices do not require an additional
auxiliary power supply.
2.1
Technical data
Supply
Bus voltage
21…32 V DC
Current consumption, bus
< 12 mA
Leakage loss, bus
maximum 250 mW
Leakage loss of the device at max. load
maximum 2 W at VAA/S 6.230.2.1
maximum 4 W at VAA/S 12.230.2.1
Outputs
6 or 12 semiconductor outputs
for every 3 non-isolated outputs in the group.
Short circuit and overload protected
Rated voltage U
n
24…230 V AC, 50/60 Hz
Rated current I
n
per output
160 mA resistive load at T
amb
up to 45 °C
Inrush current per output
maximum 750 mA for 10 s at T
A
up to 60 °C
Caution:
When valve drives (e.g. TSA/K) are connected in
parallel, the technical data of the respective
valve drive must be observed! The inrush current
(750 mA) or rated current (160 mA) of the output
may not be exceeded.
Connections
KNX
via bus connection terminals
Output terminals
via universal head screw terminals
0.2... 4 mm
2
stranded, 2 x 0.2…2.5 mm
2
,
0.2...6 mm
2
single core, 2 x 0.2…4 mm
2
Operating and display elements
Button/LED
for assignment of the physical address
Button
and LED
for toggling between manual
operation/operation via ABB i-bus
®
and displays
One button
and LED per output
for control (ON/OFF) of the output and
display of the status
One button
and LED
for every 3 outputs
for reset and indication of a fault
e.g. short circuit and overload
Enclosure
IP 20
to EN 60 529
Safety class
II
to EN 61 140
Isolation category
overvoltage category
III to DIN EN 60 664-1
pollution degree
2 to EN 60 664-1
2CDC 071
007
S00
11