ABB i-bus KNX Product Manual page 167

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ABB i-bus KNX
Parameters
Along with the temperature setpoint option, the analog room control unit also permits measurement of
the room temperature using a temperature sensor.
To use this, connect the analog room control unit output designated for setpoint adjustment (terminal a)
to device input a.
It cannot be connected to any other input of the channel.
Only connect one analog room control unit to the device. Connecting multiple controllers will cause
operating faults.
The analog room control unit still works without the thermostat feature connected.
The output for the temperature measurement can be connected to any other input on the device.
This input must then only be parametrized for the correct temperature value:
• Temperature sensor type: NTC
• NTC type: NTC 20 [0...+100 °C]
We recommend using device input b for this.
There are two versions of the analog room control unit: one with setpoint and fan adjustment, and one
with setpoint adjustment only. The latter can also be connected for use.
The following device variants are available as analog room control units:
• SAF/A 1.0.1-24 Room Temperature and Fan Coil Control Panel *
• SAR/A 1.0.1-24 Room Temperature Control Panel
* With this variant the fan adjustment can however not be used because the device cannot actuate a fan.
It can only be used for temperature measurement and temperature setpoint adjustment.
Note
VC/S 4.x.1 | 2CDC508220D0211 Rev. A 165