ABB STT04 - Page 86

SMART POSITIONER
CREATE/MODIFY CONFIGURATION
A - 3
Move the indicator to the choice with the up and
down arrow keys. Refer to the appropriate product
instruction for input characterization types. For this
example LINEAR is the input characterization type.
NOTE: The STT04 terminal is capable of displaying
3 input characterization types on the screen. Use the
up and down arrow keys to view the additional input
characterization types.
Input lower range value using the number keys, then
press . Input the upper range value.
Set this to YES to be alerted if the actuator has not
moved for over two minutes with a change in the
input signal.
NOTE: Review product instruction for details.
Select PSI units.
Proportional tuning constant. Use numbers between
1 and 0 for small drives and numbers greater than 1
for large drives.
NOTE: Review product instruction for details.
Integral tuning constant. This number will usually
range from 1 to 40.
NOTE: Review product instruction for details.
Derivative tuning constant. This number will usually
range between 2 and 70.
NOTE: Review product instruction for details.
Key Display Comments
ENTER
INPUT CHAR
→ LINEAR
SQUARE ROOT
SQUARE
ENTER
LOWER RANGE VAL
nn.nn
UPPER RANGE VAL
nn.nn
ENTER
ENTER
VALVE STUCK ALARM
NO
→ YES
ENTER
PRESSURE UNIT
→ PSI
BARS
ENTER
Kp:
Prop. Gain
nn.nn
ENTER
Ki:
Integral
nn.nn
ENTER
Kd:
Derivative
nn.nn