Aalborg DPC - Set Point and Valve Control

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6.4.3 Instrument Set Point and Valve Control
In order to be able to change the Set Point value via Local OLED/Joystick interface the “Set
Point Source” parameter must be set to “Local”. To do so, from the instrument main PI
screens press Esc button then using Joystick UP or DN controls navigate to “General Set-
tings” menu selection and press ENT. A subsequent screen (Figure 15) will appear and the
"General Settings" menu items will be listed.
*General Settings *
Valve Parameters
STP/NTP Units Cond
Display & PI Screens
Communication Port
ModBus Interface
Relay Assignment
Analog Output
*Valve Parameters *
Set Point Source
Loc & Dig SP Merge
Local SP Auto Start
Auto Tune Vlv Delay
Valve PID Loop Type
Adjust PID P Term
Adjust PID I Term
Figure 15: General Settings and Valve Parameters Menu Selections
Select "Valve Parameters" menu item and press ENT. A subsequent screen (Figure 15) will
appear and the "Valve Parameters" menu items will be listed. Select "Set Point Source"
menu item and press ENT. A subsequent screen (see Figure 16) will appear and the "Set
Point Source" menu items will be listed. Select desired Set Point Source and press ENT.
Set Point Source:
Analog
Digital
Local
PSP
Figure 16: Set Point Source Menu Selections
NOTE: On power up, the last used Set Point Source settings will be retrieved
from the instrument’s non-volatile memory and set as active.

To change "Local" Set Point value from main PI screen press Joystick ENT. The current set point
value with rectangular fl ashing cursor will appear instead big digit fl ow reading (see Figure 17).
New PP Password
has been saved
PP Password is Changed
Figure 14: PP Password Change Confi rmation Screen