Connection Schematics - ABB i-bus KNX Product Manual

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ABB i-bus KNX
2.1.2

Connection schematics

© 2008 ABB STOTZ-KONTAKT GmbH
Device technology
LR/S 2.16.1
1 Label carrier
2 KNX programming button
terminals
3 Red KNX programming LED
4 KNX connection terminal
5 Switch position display and
ON/OFF manual actuation
Caution
All-pole disconnection must be observed in order to avoid dangerous
touch voltages which originate from feedback of differing phase
conductors.
Important
An open 1-10 V control line produces the maximum ballast brightness.
A short circuited control line generates the minimum dimming value.
The minimum dimming value is also set if the control cable polarity
is reversed. In all three cases dimming of the lighting is not possible.
Note
An open Light Sensor cable (maximum cable resistance) means the same
as a dark room for the Light Controller. The 1-10 V output is controlled
with maximum brightness during control. The same behaviour is also
exhibited with a short circuit and if the sensor cable polarity is reversed.
The sensor value can be read via the object Sensor value (No. 32, 57, 82
or 107) of the corresponding output (L flag must be set!). This value
corresponds with the measured value on the sensor input, the Light
Sensor detects the luminance within its detection range. The value does
not comply with the lighting intensity in Lux measured with a Luxmeter
underneath the Light Sensor.
In all three fault scenarios (open circuit, short circuit and incorrect polarity)
the value read via the object Sensor value is equal to 0.
This value corresponds with the value of absolute darkness.
LR/S 4.16.1
6 Load circuit, for each 2 screw terminals
7 Control circuits 1-10 V, for each 2 screw
8 Light Sensor inputs, for each 2 screw terminals
9 Light sensor LF/U 2.1
12