Basic Setpoint Shifting - Gira 2100 Series Manual

instabus KNX/EIB System
Sensor
Adjusting the basic setpoint / comfort temperature for heating:
It is only in the event of a basic setpoint change that two cases must be distinguished:
- Case 1: The basic setpoint change is permanently adopted,
- Case 2: The basic setpoint change is adopted only temporarily (default).
Via the "Adopt basic temperature setpoint change permanently" parameter on the "Room temperature controller
function /setpoints" parameter page, it is possible to determine whether the changed basic temperature value
shall be stored in memory permanently ("yes") or only temporarily ("no").
Case 1:
If the basic temperature setpoint is changed, it will be permanently stored in the room temperature controller's
EEPROM. The newly adjusted value will overwrite the basic setpoint temperature originally parameterized in
the ETS! This is the only way to keep the changed basic setpoint even after switching-over the operating mode
or after a reset.
Notes:
• Frequent adjustments of the basic temperature (e.g. several times a day) can affect the product life of the
device as the non-volatile storage (EEPROM) is designed only for less frequent write access.
• The stored basic setpoint will still be active after the return of bus voltage. The value of the object 26 or 27 is
then however "0". The current basic setpoint can be read out only after an external object update (set "R"
flag!).
Case 2:
The basic setpoint received via the object stays only temporarily active in the current operating mode. In case
of a bus voltage failure or following a switch-over into another operating mode (e.g. comfort followed by
standby), the basic setpoint received via the object will be discarded and replaced by the value which was
originally parameterized in the ETS.
Adjusting the setpoints for standby mode, night mode and dead zone (comfort temperature for cooling):
Since the setpoint temperatures for the "standby" and "night" operating modes or the setpoints for the "cooling"
control option are derived - in consideration of the increase, decrease or dead zone values that are parameterized
in the ETS - from the basic setpoint temperature, these setpoint temperatures will shift linearly by the change of
the basic setpoint value.
2.4.2.2

Basic setpoint shifting

In addition to the setting of individual temperature setpoints by the ETS by the basic setpoint object, the user is
able to shift the basic setpoint anytime with the control wheel within the parameterized limits.
It has to be considered that a shift of the setpoint temperature (temperature offset of the basic temperature) will
directly affect the basic setpoint and as a result shift all other temperature setpoints.
In general, shifting of the basic setpoint affects all operating modes. The shift is maintained even after switching-
over the operating mode or the control option or after readjusting the basic setpoint.
The adjustable temperature range for a basic setpoint shift is defined via the "Adjusting the basic setpoint
temperature upwards" or "Adjusting the basic setpoint temperature downwards" parameters. It is possible to shift
the current setpoint by a maximum of +/- 10 K. The stage offset is set to a non-adjustable 0.5 °C.
Notes on the basic setpoint shifting:
• A setpoint shift does not affect the temperature setpoints for frost or heat protection.
52/82 Page 2100-xx/2101 xx 07 /17
Subject to change without notice