AFA4000/E
VAV Airflow Controller / p.133
(seconds) in steps of 5 until the face velocity controls back to the set point over an
acceptable time.
If the
Integral Time
is set too low, the face velocity will take too long to control back to the
set point when the face velocity changes.
If the
Integral Time
is set too high, the Integral may over-compensate and create overshoot
and give unstable control.
Set the
Integral Time
to approximately 10
–
30 seconds.
9.
The controller has an
Auto Tune
correction algorithm that increases the speed of response
once the measured airflow value drops below the set point value if the Prop band and
Integral settings are incorrect. The algorithm is only active when the measured airflow is
below the set point and the Integral value is set greater than zero.
8.4
AFA4000/E/AS configuration menus
Note: The Auto Sash menus are only available when the Auto Sash is connected.
To configure the AFA4000/E/AS Airflow Monitor, navigate to
Main Menu
>
Set up Auto Sash
>
Setup Menu
to display the Menu options.
Press the
↓
button to scroll down the menu list and press
Mute
to select the required option.
8.4.1
Auto Sash setup menu
Note: The Setup menu is password protected. The default password is 1 0 0 1.
Note: Select the option
Back to Setup Menu
to return to the next option in the Auto Sash setup
menu.
To change options in the Auto Sash setup menu:
1.
Press
Mute
to enter edit mode. The ‘
>
’ symbol next to the parameter is underlined.
2.
Press the
↑
/
↓
buttons to scroll through the options.
3.
Press
Mute
to select the option. The ‘
>
’ symbol underline disappears.
4.
Press the
↓
button to scroll down to the next menu option.
Содержание AFA4000/E
Страница 1: ...AFA4000 E VAV Airflow Controller Installation and operating manual Issue 2...
Страница 57: ...AFA4000 E VAV Airflow Controller p 57 Figure 22 AFA4000 E inverter control connections...
Страница 58: ...AFA4000 E VAV Airflow Controller p 58 Figure 23 AFA4000 E damper control connections...
Страница 59: ...AFA4000 E VAV Airflow Controller p 59 Figure 24 AFA4000 E typical connection diagram...
Страница 60: ...AFA4000 E VAV Airflow Controller p 60 Figure 25 AFA4000 E AS typical connection diagram...
Страница 62: ...AFA4000 E VAV Airflow Controller p 62 Figure 27 SM7 airflow sensor dimensions...
Страница 71: ...AFA4000 E VAV Airflow Controller p 71 Figure 34 Side views of a rack and pinion drive typical installation...
Страница 96: ...AFA4000 E VAV Airflow Controller p 96 6 9 Auto Sash System Control Box general wiring diagram...
Страница 158: ...AFA4000 E VAV Airflow Controller p 158...
Страница 182: ...AFA4000 E VAV Airflow Controller p 182 Figure 79 Connection diagram with RS232 485 converter...
