KNX Technical Reference Manual
ABB i-Bus
®
KNX Yucus
112
"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%",
"PI PWM, On/Off“ or "Fan coil". In addition, the "Heating type" parameter must be set on
"Free configuration".
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 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 reset time.
12.34.32 Control of heating additional stage – Temperature difference to basic stage
(x 0.1 °C)
Options Input from 0 to 255
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"
The setpoint temperature of the additional stage is define as a function of the current
setpoint temperature of the base stage and is express as a difference. The value
represents the setpoint value starting at which the additional stage will operate.
12.34.33 Control of heating additional stage – Extended setting
Options No
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"
This parameter enables additional functions and communication objects, e.g. "additional
heating stage".
12.34.34 Additional heating stage – Control direction of control valve
Options Normal
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
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