Danfoss ECL Comfort 310 Installation Manual page 133

Installation Guide
Xp actual — A376.2
Circuit
3
'Xp actual' is the read-out of the actual Xp (proportional band) based on
the supply temperature. Xp is determined by settings related to the supply
temperature. Typically, the higher the supply temperature, the higher the Xp
must be in order to achieve a stable temperature control.
Xp setting range:
Fixed supply temperature settings: 65 °C and 90 °C
Factory settings:
This means that the 'Xp' is 40 K at 65 °C supply temperature, and
'Xp' is 120 K at 90 °C.
Set the desired Xp values at the two fixed supply temperatures.
If the supply temperature is not measured (the supply temperature
sensor is not connected), the Xp value at the setting 65 °C is used.
Xp (proportional band) — A376.9
Circuit
3
Set the proportional band. A higher value will result in a stable but
slow control of the flow temperature.
Tn (integration time constant)
Circuit
3
Set a high integration time constant (in seconds) to obtain a slow
but stable reaction to deviations.
A low integration time constant will make the controller react fast
but with less stability.
Tn (integration time constant) — A376.9
Circuit
3
Set a high integration time constant (in seconds) to obtain a slow
but stable reaction to deviations.
A low integration time constant will make the controller react fast
but with less stability.
Danfoss District Energy
ECL Comfort 310, application A376
Setting range Factory setting
Read-out only
5 ... 250 K
(65,40) and (90,120)
13184
Setting range Factory setting
5 ... 250 K 90 K
13185
Setting range Factory setting
1 ... 999 s 20 s
13185
Setting range Factory setting
1 ... 999 s 13 s
VI.GU.B1.02 DEN-SMT/DK 133