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Consider that, if the GAP (interval between the upper and lower hysteresis points) is too narrow,
devices in charge to transmit and receive the On/Off to the system might be damaged because of
a rapid switching.
The default configuration sets a 2ºC GAP referred to the
“Set Temperature”
Note: The control method the Thermostat uses when this reacts autonomously to the “Freezing
or Overheating Protection” is “2 Points with Hysteresis”.
In this case the lower hysteresis point is 0ºC (referred to the parameterized Temperature) while
the upper point is 1ºC. This means that the system will start working exactly when the
“Protection Temperature” is detected and won’t stop until the room temperature raises one
degree exactly.
PI CONTROL (Proportional-Integral
Æ
This control follows the Standard KNX rules.
There are different systems to get a room conditioned:
HEAT
COOL
-Warm
Water
-Cooling
Ceiling
-Floor
Heating
-Blow
Convector
-Electric
Heating
-A/C
Split
-Blowi Convector
- A/C Split
Depending on the climate control system used on the installation, the user must choose the
suitable option.
Any available option is internally parameterized for best performance in each case. The pre-Set
options correspond to practical tests, ensuring a perfect performance control when controlling a
room temperature.
Note: Advanced users may customize their own parameterizable constants: Proportional Band
& Integral Time
The PI Control Method may be applied following two different Control Types:
¾
PWM (1 bit): Acts over the ON/OFF. This type of control
makes an internal estimation on the “Cycle Time” prefixed by
parameter, for the climatization system to be ON, to comply
with the user requirements.
LOWER
HYSTERESIS
Time
UPPER
HYSTERESIS
Tª
