If you want to tune the PI regulation precisely, you can use the following
method:
• Set the ‘Tn’ (integration time constant line 6185) to its max. value (999 sec.).
• Decrease the value for the ‘Xp’ (proportional band line 6184) until the system starts
hunting with a constant amplitude (it might be necessary to force the system by setting
an extreme value).
• Find the critical time period on the temperature recording or use a stop watch.
Temp. Critical time period
Time
This time period will be characteristic for the system, and you can evaluate the settings from
this critical period.
‘Tn’ = 0.85 x critical time period
‘Xp’ = 2.2 x proportional band value in the critical time period.
If the regulation seems to be too slow, you can decrease the proportional band value by
10%.
ECA address (choice of room panel / remote control) 7010
Setting range Factory setting
OFF / A / B OFF
Decides the communication with the room panel or remote control.
OFF: Room temperature sensor (no room panel / remote control)
A: Room panel ECA 60 / 62 or remote control, ECA 61 / 63 with address A
B: Room panel ECA 60 / 62 or remote control, ECA 61 / 63 with address B
P1 exercise (pump exercise) 7022
Setting range Factory setting
ON / OFF ON
Exercises the pump to avoid blocking in periods without heat demand.
ON: The pump is switched ON for 1 minute every third day around noon.
OFF: The pump exercise is not active.
M1 exercise (valve exercise) 7023
Setting range Factory setting
ON / OFF OFF
Exercises the valve to avoid blocking in periods without heat demand.
ON: The valve receives a signal to open and close every third day around
noon.
OFF: The valve exercise is not active.
Actuator (gear motor / thermo actuator) 7024
Setting range Factory setting
GEAR / ABV GEAR
Choose the actuator type for your valve.
GEAR: Gear motor
ABV: Thermo actuator (Danfoss type ABV)
Control parameters (lines 6174-6187) are overruled if thermo actuator is chosen (ABV).
Application 7000
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