Setting The Proportional Range For The Internal P/Pi Controller; Setting The Integral Time For The Internal Pi Controller; Activating/Deactivating The Supply Air Limitation - Nordmann AT4 Operating Instructions Manual

If the timer is activated, up to eight switching points (events 1 ­ 8) with different humidity setpoints
can be defined. Each switching point is defined by a weekday or weekday range, the switching point
and the humidity setpoint.
Configuration notes:
– the settings of an event remain active up to the next event.
– the software does not check the plausibility of the timer settings. Therefore, make sure your
settings make sense.
– the On/Off timer (see chapter 5.4.7) overrides the humidity setpoint timer.
5.4.3.6

Setting the proportional range for the internal P/PI controller

Note: This menu item is available only if the internal P or PI controller is activated.
Select "P-Band" in the control settings menu, then press the <Set> key.
Settings Controls
Language :English Controlsign.:0-10V
Controls :Set Setpoint
Cylinder :6564 P-Band
SC-System :Set Integr.-Time:8min
Power Limit :Set Lim. Control:Off
Esc Set
In the upcoming modification dialogue set the proportional range in %rh for the internal P/PI controller.
Factory setting: 18 %rh
Setting range: 6...65 %rh
5.4.3.7

Setting the integral time for the internal PI controller

Note: This setting is available only if the internal PI controller is activated.
Select "Integr.-Time" in the control settings menu, then press the <Set> key.
Settings Controls
Language :English Controlsign.:0-10V
Controls :Set Setpoint
Cylinder :6564 P-Band
SC-System :Set Integr.-Time:8min
Power Limit :Set Lim. Control:Off
Esc Set
In the upcoming modification dialogue set the integral time in minutes for the internal PI controller.
Factory setting: 8 minutes
Setting range: 1...60 minutes
5.4.3.8

Activating/Deactivating the supply air limitation

Note: This setting is available only if the control type is set to "External", "Int. (P)" or "Int. (PI)".
Select "Lim. Control" in the control settings menu, then press the <Set> key.
Settings Controls
Language :English P-Band
Controls :Set Integr.-Time:8min
Cylinder :6564 Lim. Control:On
SC-System :Set Limitsignal :0-10V
Power Limit :Set Limit Min
Esc Set
In the upcoming modification dialogue activate or deactivate the supply air limitation (Signal Z).
Factory setting: Off
Options: On, Off
P-Band
:Set 18 %rH
:18%rH
Esc Set Esc
Integr.-Time
:Set 8 min
:18%rH
Esc Set Esc
Lim. Control
:18%rH
Off
On
:70%rH
Esc Set Esc
18 %rH
Set
8 min
Set
On
Set
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