12
…4 CONFIGURATION
4.3.1 Position Feedback Page
This page appears only if P–PrOP is selected at the Control Type parameter in the Set Up
Control Page
– see Fig. 3.1 and Section 4.10.
rAtIO
1.00
bIAS
0
dEAdb
1.0
SEtUP
PrCESS
POStN
F–bACK
Page Header – Position Feedback Page
Ratio
Ratio is a scaling factor, i.e. multiplies the position
feedback input by the value set here.
Set the required feedback ratio, between 0.0 and 9.99 in
0.01 increments.
Bias
Bias is an offset as a percentage of the valve travel.
Set the required feedback bias, between –100.0 and
+100.0%.
Deadband
Deadband is set as a percentage of the position feedback
span, between 0.0 and 10.0%, to produce a deadband
around the valve control value. This gives minimum
‘hunting’ of the motorized valve.
Example – if the valve is to be driven to the 50% open
position and the deadband is set to 4.0%, the motor stops
driving when the position feedback is 48%. In this example
the deadband is between 48% and 52%.
Return to the top of the Position Feedback Page or advance
to next page.
To Next Page
Loading...
