ABB i-bus
®
KNX
Parameters
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 223
7.6.4
Setpoint specification and adjustment
Options:
Absolute
Relative
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 us-
ing a dedicated group object. As such each operating mode setpoint can be changed indepen-
dent of all other values. There is no common change by 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.
Note
The values entered must, according to the type of operation (heating or cooling), be higher (cool-
ing) 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 protec-
tion setpoint (building protection, cooling)
Failure to observe the sequence for the values may result in incorrect room temperature regula-
tion.
•
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 in-
crease 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.
