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Setting the parameters
Room Temperature Controller KNX eTR 101-BA2
• Version: 20.04.2021 • Technical changes and errors excepted.
Specify the deviation from the set point value which reaches maximum variable value,
i.e. the point at which maximum cooling power is activated.
Reset time shows how quickly the controller responds to deviations from the set point.
In the case of a short reset time, the control responds with a fast increase of the control
variable. In the case of a long reset time, the control responds slower and needs longer
until the necessary control variable for the set point deviation is reached. You should
set the time appropriate for the cooling system at this point (observe the manufactur-
er's instructions).
Now specify what should be sent when the control is blocked.
On release, the control variable follows the rule again.
In the case of a common control variable for heating and cooling, 0 is always transmit-
ted as a fixed value.
PI control with predetermined application
This setting provides fixed parameters for a cooling ceiling
Now specify what should be sent when the control is blocked.
On release, the control variable follows the rule again.
2-point-control (only stage 2):
2-point-control is used for systems which are only set to ON or OFF.
Control type
•
PI control
Setting of the controller by
•
Controller parameter
• Specified applications
Maximum control variable is reached
at set point/actual difference of (in °C)
1...5
Reset time (in min)
1...255; 30
When blocked, the control variable should
• not be sent
• send a specific value
Value (in %)
(only if a value is sent)
0...100
Control type
•
PI control
Setting of the controller by
• Controller parameter
•
Specified applications
Application
• Cooling ceiling
Maximum control variable is reached
at set point/actual difference of (in °C)
Cooling ceiling: 5
Reset time (in min)
Cooling ceiling: 30
When blocked, the control variable should
• not be sent
• send a specific value
Value (in %)
(only if a value is sent)
0...100
