Setpoint Specification And Adjustment - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Parameters
7.7.4

Setpoint specification and adjustment

Options:
This parameter is used to set the manner in which the setpoints are configured, as well as whether this
can be changed.
•
Absolute: Absolute values are used to enter the values for Standby and Economy heating and
Standby and Economy cooling. I.e. the setpoint that is to become active on the activation of the
related operating mode is specified. It is possible to change the values parameterized here using
a dedicated group object. As such each operating mode setpoint can be changed independent of all
other values. There is no common change due to the basic setpoint. The dependent objects Comfort
heating setpoint, Standby heating setpoint, Economy heating setpoint, Building Protection heating
setpoint, Comfort cooling setpoint, Standby cooling setpoint, Economy cooling setpoint and Building
Protection cooling setpoint are displayed. The dependent parameters Standby heating setpoint,
Economy heating setpoint, Standby cooling setpoint and Economy cooling setpoint are displayed.
The values entered must, according to the type of operation (heating or cooling), be higher (cooling) or
lower (heating) than the Comfort setpoint:
Comfort heating setpoint > Standby heating setpoint > Economy heating setpoint > Setpoint for frost
protection (Building Protection heating).
Comfort cooling setpoint < Standby cooling setpoint < Economy cooling setpoint < Heat protection
setpoint (Building Protection cooling).
Failure to observe the sequence for the values may result in incorrect room temperature regulation.
•
Relative: The setpoints for Standby and Economy heating and Standby and Economy cooling are
entered as values relative to the related Comfort heating or Comfort cooling setpoint. It is only
possible to change all values at the same time using the Base setpoint group object. The base
setpoint is defined using the Base setpoint is parameter. Depending on the value received via the
Base setpoint group object, all other values are changed to suit the reduction or increase
parameterized.
It is not possible to change the setpoint for heat protection or the setpoint for frost protection via KNX
using this method.
The dependent Base setpoint group object is displayed.
The dependent parameters Standby heating reduction, Economy heating reduction, Increase for
Standby cooling, Increase for Economy cooling and Base setpoint is are displayed.
132 2CDC508220D0211 Rev. A | VC/S 4.x.1
Absolute
Relative
Note