Emerson RTS FQ Operating Manual page 65

User Instructions
Part Number IOM – 87376-7
P14.6
P14.7
P14.8
P14.9
P14.10
P14.11
P14.12
58
Menu Sub Menu
Item Item
PID
Gain (P)
contoller
PID
Reset time (I)
contoller
PID Lead Time
controller (D)
PID
Offset
contoller
PID
Dead Band
contoller
PID
Period
contoller
PID Actual Value
controller Monitoring
Poss. Setting
+50 - 50, Gain (proportional value) of the PID controller
The shorter the reset time (integral time, integral
value), the stronger is the effect of the integral
0 – 100s
component of the PID controller. Values below 1.0
will disable the integral component.
The larger the lead time (differential/derivative
value), the stronger is the effect of the dervative
0 – 100s component of the PID controller. To reduce the
influence of noise a first order lag element with
1s time constant is added (DT1) .
The offset value will be added to the output value
-200 – 200%
of the PID controller.
Tolerance range for the control deviation (setpoint
0.1 – 10%
external actual value) where no adjustment
{1%}
occurs.
2.– 20 s Equal to parameter P13.10 (see
The monitoring of the external actual value is
Ignore
disabled.
Actuator stops on signal failure of external actual
Stop
value.
Actuator moves on signal failure of external actual
Open
values to the OPEN position.
Actuator moves on signal failure of external actual
Closed
values to the CLOSED position.
Actuator moves on signal failure of external actual
Emergency
values to the EMERGENCY position. (see
position
parameter P13.7).
July 2016, Rev 1.0
Notes/Comments
Section 18.12)