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Parameter setting
Temperature evaluation unit KNX T6-UN-B4
• Version: 17/12/2019 • Technical changes and errors excepted.
5.5.3. Heating control level 1/2
If a heating control mode is configured, one or two setting sections for the heating lev-
els are displayed.
On the 1st level, heating is controlled by a PI control which allows to either enter con-
trol parameters or select predetermined applications.
On the 2nd level (therefore only in case of a 2 level heating), heating is controlled via
a PI or a 2-point-control.
On level 2, the set point deviation between the two levels must furthermore be deter-
mined, i. e. the lowest set point value from which the 2nd level is then added (when
values exceed this set point).
PI control with control parameters:
This setting allows individual input of the parameters for PI control.
Determine the deviation from the set point value which reaches maximum variable val-
ue, i. e. the point at which maximum heating power is activated.
The reset time shows how quickly the controls react to deviations from the set point
value. In case of a short reset time, the controls react with a fast increase of the varia-
For heating and cooling
• separate variables are used
• common variables are used for
Level 1
• common variables are used for
Level 2
• common variables are used for
Level 1+2
Control type
only for level 2
• 2-point control
• PI control
Regulating variable of the 2nd Stage is on
only for level 2
• 1-bit object
• 8-bit object
Set point difference between levels 1 and 2
(in 0.1°C)
only for level 2
0…100; 40
Control type
only for level 2 and if no common variables
are used
• 2-point control
• PI control
Control type
•
PI control
Set control using
•
Controller parameter
• provided applications
Содержание 70222
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