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3.16 PID set screen
Return to
configuration
screen
For Channel selection, it is available for IPC5000D.
(1) Control Algorithm selection button : It is changeable only at STOP mode.
Button to select PID Control Algorithm.
PID-A : This is three-mode control algorithm(P(Proportional), I(Integral),D(Derivative))
PID-B : Unlike the PID A equation, the controller gives only an integral response to a
DUP-A : PID-A algorithm for Heat/Cool control.
DUP-B : PID-B algorithm for Heat/Cool control.
(2) P-value Set selection button
Selects P (Proportional Band) value type
P-BAND is the range indicated by the percentage of process value.
GAIN is the ratio of process value change (%) to output change (%).
(3) Reset value set selection button
Selects the type applied to Reset value.
MIN / RPT: Minutes per Repeat.
RPT / MIN: Repeat per Minutes.
EXIT
(1)
CONTROL ALGORITHM
(2)
P VALUE SET
(3)
RESET VALUE SET
(4)
(2)
CONTROL DIRECTION
(5)
FUZZY CONTROL
(6)
FAIL-SAFE
PID SET
Fig. 3.16.1 PID SET screen
and used for most control field.
setpoint change, with no effect on the output due to the gain or rate action, and
it gives full response to PV changes. Otherwise controller action is as
described for the PID A equation.
GAIN =
PID SET
PID-B
DUP-A DUP-B
PID-A
GAIN
P-BAND
RPM / MIN
MIN / RPM
DIRECT
REVERSE
ON
OFF
%
0.0
CH1
PID VAL
PID ZONE
100
%
P.
B
- 69 -
2003.01.23
12 H 59 M
Channel selection
CH2
CONTROL
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