ABB i-bus KNX Yucus YUB/U1.0.1 Series Technical Reference Manual page 114

KNX Technical Reference Manual
ABB i-Bus ® KNX Yucus
"Heating with additional stage" or "Heating and cooling with additional stages", only
available when the "Extended settings" parameter under "Control of heating additional
stage" is set on "Yes".
The mode of the control value can be used to adapt the control value to de-energized
opened (normal) or de-energized closed (inverse) valves.
– Normal: Value 0 means "Valve closed".
– Inverse: Value 0 means "Valve open".
12.34.35 Additional heating stage– Hysteresis (x 0.1 °C)
Options
Note: Only available when the "Device function" parameter is set on either
"Single device" or "Master device" and the control function parameter is set on either
"Heating with additional stage" or "Heating and cooling with additional stages", 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%".
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".
12.34.36 Additional heating stage – Control value difference for sending of heating
control value
Options
Note: Only available when the "Device function" parameter is set on either
"Single device" or "Master device" and the control function parameter is set on either
"Heating with additional stage" or "Heating and cooling with additional stages", only
available when "Control value type" parameter is set either on "PI continuous, 0 – 100%"
or "Fan coil".
The control values of the 0 - 100% PI continuous controller are not transmitted after every
calculation. Instead, they are transmitting 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.
Input from 3 to 255
2 %
5 %
10 %
Send cyclic only
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