ABB i-bus KNX Product Manual page 148

®
ABB i-bus KNX
Parameters
7.8.2.1 —
Dependent parameter
Temperature input monitoring
This parameter is only visible if the Channel function parameter has been parameterized with
the Controller channel option.
Options:
The reception of a temperature value can be monitored using this parameter. Unlike the other group
objects to be monitored, here it is also possible to monitor a physical device input instead of a group
object. This is possible because the correct function of the temperature input is imperative for the correct
function of the device.
•
Deactivated: The monitoring of the temperature input is deactivated.
•
Via group object: The External temperature 1 and External temperature 2 (only if activated) group
objects are monitored. As soon as a new value is received in one of the two group objects,
the monitoring time for the related group object starts again.
The dependent parameters Time interval for cyclical monitoring and Control value after exceeding
monitoring time as well as the Fault: actual temperature (master) group object are enabled.
It is necessary that a value is received in both group objects within the monitoring time to prevent
the triggering of the cyclical monitoring.
•
On physical temperature inputs: The temperature sensors connected to the inputs for this channel are
monitored. If the inputs do not deliver a valid temperature value for more than a minute, the fault value
parameterized is used.
The Control value on input fault dependent parameter is displayed.
For the monitoring to work, at least one input must also be parameterized as a temperature sensor and
a temperature sensor must be connected to it. This setting is specified in the parameter window for the
related input.
So that the temperature sensor connected also has an effect on the controller, the sensor must also be
assigned to the controller in the Application parameters parameter window in the Temperature input
parameter by selecting the corresponding options (Via physical device input or Via physical device input
and group object).
Monitoring of one of the physical inputs is not allowed if Temperature input - Via group object has been
selected in the controller. This will result in the monitoring time being exceeded, because the device
inputs are monitored using very short times.
146 2CDC508220D0211 Rev. A | VC/S 4.x.1
Deactivated
Via group object
On physical temperature inputs
Note
Note