o
"Level":
Control using level SetPoint and Feedback
o
"%":
Control using percentage open (position of the valve) SetPoint and Feedback
o
"Analog":
Control using flow SetPoint and Feedback
"PID Cycle every (s)":
This field designates how often the calculation will be performed to determine the appropriate
action to be taken with the output, minimum value is 10 seconds
"Signal loss ":
This field designates what action the controller will take when there is a loss of signal on the Remote Set
Point (RSP). The options are:
o
"No Action"
o
"Open 100%":
Open valve 100%
o
"Close 100%":
Close valve 100%
o
"Lock Position ":
Maintain valve in current position
"PID Status":
The user may configure a PID loop, but not activate it until the appropriate time. The choices are:
o
"On"
o
"
Off
"
o
"Conditional":
When the
"Conditional"
option is chosen, an additional field appears and prompts the user to
specify when the PID should be active. The following field is shown:
The PID loop can be configured to be always active, or when one of the inputs meets a certain condition. In this
case, use the pull down menu that is defaulted to "Always" to select the appropriate input, then use the pull down
menu to the right to select an operator, such as the
"Greater than "
sign (>), then specify a value.
Example:
The following PID loop has been set to be conditional active, only when the Feedback [AI2] is greater
than 50.00 l/s.
B) Input Tab
Input Field Description:
Setpoint Section:
o
"Source":
Designates which compatible input or variable is to be used as the SetPoint for the PID loop
o
"Current Value":
Shows the *live* current value of that input
o
"Override":
Allows the user to input an override value from this menu rather than having to go back to the input
information or input configuration screens - this can be helpful when commissioning a system for the first time
Visit www.cla-valpacific.com for more details. Contact the Factory at [email protected]
15
CLA-VAL VC12
Electronic Controller
