Additional Cooling Stage - Minimum Control Value For Basic Load (0 - 255); Additional Cooling Stage - Hysteresis - Busch-Jaeger SD/U12.55.11-825 Manual

8.18.60 Additional cooling stage — Minimum control value for basic load (0 - 255)
Options:
The minimum control value of the PI controller defines the minimum value output by the
controller. If a minimum value greater than zero is chosen, the controller will not output a lower
value, even if it calculates a value that is lower. This parameter can be used to set a basic load,
e.g. for operating surface cooling. Even if the controller calculates the control value zero, a
cooling medium will flow through the cooling area to prevent the floor from heating up. Under
"Settings of basic load", it is also possible to define whether this basic load will be permanently
active or whether it will be switched by the "Basic load" object.
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".
8.18.61 Additional cooling stage — Hysteresis
Options:
The hysteresis of the two-point controller specifies the fluctuation range of the controller around
the setpoint value. The lower switching point is located at "Setpoint value minus hysteresis" and
the upper point is at "Setpoint value plus hysteresis".
Notice
This parameter is only available when the "Control value type" parameter is set
either on "2-point 1 Bit, Off/On" or "2-point 1 Byte, 0/100%".
Product manual 2CKA001473B5472
Control elements and application parameter
Setting option between 0 - 255
Setting option between 0.3 - 25
Application "Internal RTC"
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