Temperature Setpoints - Gira 5142 00 Product Documentation

4.2.4.2.5 Temperature setpoints

Setpoint temperature presetting
Temperature setpoints can be preset for each operating mode in the ETS as part of first
configuration. It is possible to configure the setpoints for the "Comfort", "Standby" and "Night"
modes directly (absolute setpoint presetting) or relatively (derivation from basic setpoint). If
desired, the setpoint temperatures can be subsequently adjusted via local control during
operation or controlled by KNX/EIB communication objects.
i The "Frost/heat protection" operating mode allows the separate configuration of two
temperature setpoints for heating (frost protection) and cooling (heat protection) solely in
the ETS. These temperature values cannot be changed later during controller operation.
The "Setpoint presetting" parameter on the parameter page "Room temperature control ->
Controller general -> Setpoints" defines the way the setpoint temperature is preset...
- "Relative (setpoint temperatures from basic setpoint)" setting:
When presetting the set-temperatures for comfort, standby and night mode, attention has
to be paid to the fact that all setpoints depend on each other as all values are derived from
the basic temperature (basic setpoint). The "Basic temperature after reset" parameter in the
"Room temperature control -> Controller general -> Setpoints" parameter page determines
the basic setpoint, which is loaded when the device is programmed via the ETS. Taking
into account the "Reduce / increase the setpoint temperature in standby mode" or "Reduce
/ increase the setpoint temperature in night mode" parameters the temperature setpoints
for the standby and night mode are derived from this value depending on the heating or
cooling operating mode. The deadband will be additionally considered for the "Heating and
cooling" operating mode (see page 138).
The 2-byte object "Basic setpoint" provides the option of changing the basic temperature,
and thus all the dependent setpoint temperatures during device operation. A change via the
object must always be enabled in the ETS by configuring the parameter "Change the basic
temperature setpoint via bus" or "Change the basic temperature setpoint on device or via
bus" to "Approve". If the basic setpoint adjustment via the bus is disabled, the "Basic
setpoint" object will be hidden. The controller rounds the temperature values received via
the object to the specific step width of the setpoint shift. This is dependent upon the
application program used. In Version 1.2 applications, the step width can be configured in
the ETS (0.1 K / 0.5 K / 1.0 K). In Version 1.1 applications, the step width is permanently
defined as 0.1 K.
Alternatively or additionally, the basic setpoint can be changed locally in the configuration
menu on the push-button sensor in the form of the setpoint temperature for "Comfort mode
heating" (with only "Heating" or "Heating and cooling"), or in the form of the setpoint
temperature for "Comfort mode cooling" (with only "Cooling"). To permit this, the parameter
"Changing the setpoint of the basic temperature" must be set to "approve on device" or
"approve on device and via bus".
In the operating mode "Heating and cooling" (if necessary with additional levels), it is
possible to define in the ETS whether a deadband shift can be performed locally in the
configuration menu. If the "Dead band shift" parameter is parameterised to "Approve on
device", then it is possible to use the menu to change the setpoint temperature for "Comfort
mode cooling" and thus directly the size of the deadband (temperature distance from the
setpoint temperature of the heating comfort mode).
Order No. 5142 00
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Software "Push button sensor 3 plus"
Functional description
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