KNX Technical Reference Manual
ABB-i-Bus
®
-KNX Millenium
Description of applications /
objects
KNX Technical Reference Manual | 1473-1-8681
— 49 —
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11.3.49
Control of additional cooling stage - Cooling type
Options:
PI continuous, 0 – 100% and PI PWM, On/Off:
■
Area (e.g. cooling ceiling) 5°C 240 min
■
Free configuration
Fan coil:
■
Fan coil 4°C 90 min
■
Free configuration
Two cooling types (area or fan coil) with preset parameters are available to the user.
If the required cooling type is not available, individual parameters can be specified in free
configuration.
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".
Pos: 31.7.62 /DinA-4 -- Online/Applikations- / Parameterbeschreibungen -- (KNX)/Applikation/Objekt-RTR/ModuleRegelung Zusatzstufe Kühlen — P-Anteil (x 0,1°C) @ 40\mod_1421683053736_15.docx @ 313128 @ 3 @ 1
11.3.50
Control of additional cooling stage - P-component (x 0.1°C)
Options:
Setting option between 10 - 100
The P-component refers to the proportional band of a control. It fluctuates around the setpoint
value and can be used to influence control speed with a PI controller. The smaller the setpoint,
the faster it reacts to the control. However, to avoid the risk of an overshoot, this value should
not be set too low. A P-component from 0.1 to 25.5 K can be set.
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". In addition, the
"Cooling type" parameter must be set on "Free configuration".
Pos: 31.7.63 /DinA-4 -- Online/Applikations- / Parameterbeschreibungen -- (KNX)/Applikation/Objekt-RTR/ModuleRegelung Zusatzstufe Kühlen — I-Anteil (min.) @ 40\mod_1421683156057_15.docx @ 313143 @ 3 @ 1
11.3.51
Control of additional cooling stage - P-component (min)
Options:
Setting option between 0 - 255
The I-component refers to the reset time of a control. The integral component has the effect of
moving the room temperature slowly toward, and to ultimately reaching, the setpoint. Depending
on the type of system used, the reset time has to have different values. In general, the more
inactive the overall system, the greater the reset time.
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". In addition, the
"Cooling type" parameter must be set on "Free configuration".
