Cooling Control - Cooling Type; Cooling Control - P-Component; Cooling Control - I-Component - Busch-Jaeger SD/U12.55.11-825 Manual

8.18.34 Cooling control — Cooling type
Options:
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".

8.18.35 Cooling control - P-component

Options:
The P-component stands for the proportional range in a control. It fluctuates around the setpoint
value and can be used to influence control speed of a PI controller. The smaller the value set,
the faster the control reacts. However, the value should not be set too small because otherwise
there may be a risk of an overshoot. A P-component from 1 to 25 K can be set.
Notice
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".

8.18.36 Cooling control - I-component

Options:
The I-component refers to the readjust time of a control. The integral component has the effect
of moving the room temperature slowly toward, and ultimately reaching, the setpoint value.
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 readjust time.
Notice
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".
Product manual 2CKA001473B5472
Control elements and application parameter
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
■
Setting option between 1 - 25
Setting option between 0 - 600
Application "Internal RTC"
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