KNX control elements and application parameters
Application "Internal RTC"
Product manual 2CKA001473B5343
250
10.24.54 Additional cooling stage
Note
Only available when the "Extended settings" parameter under "Control of
additional cooling stage" is set on "Yes".
10.24.55 Additional cooling stage — Mode of the control value
Options: Normal
Inverse
The mode of the control value can be used to adapt the control value to de-energised opened
(normal) or de-energised closed (inverse) valves.
– Normal: Value 0 means "Valve closed".
– Inverse: Value 0 means "Valve open".
10.24.56 Additional stage cooling — PWM cycle cooling (min)
Options: 00:01:00 - 01:00:00
In PI PWM, On/off the control value percentage values are converted into a pulse-interval
signal. This means that a selected PWM cycle will be divided into an on-phase and an off-phase
based on the control value. Accordingly, a control value output of 33% in a PWM cycle of 15
min. results in an On-phase of five minutes and an Off-phase of 10 min. The time for a PWM
cycle can be specified here.
Notice
This parameter is only available when the "Control value type" parameter is set
on "PI PWM, Off/On“.
10.24.57 Additional cooling stage — Control value difference for sending of cooling control
value
Options: 2%
5%
10%
Send cyclic only
The control values of the 0 - 100% PI continuous controller are not transmitted after every
calculation. Instead, they are transmitted when the calculation results in a value that is different
enough to the previous sent value to make a transmission meaningful. This value difference
can be entered here.
Note
This parameter is only available when "Control value type" parameter is set
either on "PI continuous, 0 – 100%", "PI PWM, On/Off“ or "Fan coil".
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