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Humidity parameter settings
Sensor with Cala KNX display
• Version: 13.03.2017 • Technical changes and errors excepted.
The behaviour of the switching output on release is dependent on the value of the pa-
rameter "Switching output sends" (see "Switching output")
9.3.
Humidity PI control
If you activate humidity control, you can use the following settings to define control
type, setpoint values, and humidification and dehumidification.
General control
Sensor with Cala KNX display
can be used to control one- or two-level dehumidifi-
cation or combined humidification/dehumidification.
Configure a block for the humidity control using the blocking object.
Specify when the current control variables are to be sent to the bus. Periodic sending
is safer, in case a message does not reach a recipient. You may also set up periodic
monitoring using an actuator with this setting.
On release
(with 2 seconds release delay)
[Dependent on the "Switching output
sends" setting]
Switching output sends on change
• Do not send message
• Send switching output status
Switching output sends on change to 1
• Do not send message
• if switching output = 1
send 1
Switching output sends on change to 0
• Do not send message
• if switching output = 0
send 0
Switching output sends on change and
periodically
Send switching output status
Switching output sends on change to 1
and periodically
if switching output = 1
send 1
Switching output sends on change to 0
and periodically
if switching output = 0
send 0
Use humidity control
No • Yes
Type of control
• One-level dehumidification
• Two-level dehumidification
• Humidification and dehumidification
Behaviour of the blocking object with value
• 1 = Block | 0 = release
• 0 = block | 1 = release
Blocking object value
before first communication
0 • 1
Send control variable
• on change
• on change and periodically
Summary of Contents for Cala KNX AQS/TH
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