GE C30

5-130 C30 Controller System GE Multilin
5.6 CONTROL ELEMENTS 5 SETTINGS
5
(EQ 5.3)
The PID regulator logic is shown below.
Figure 5–49: PID REGULATOR LOGIC
Dp k() pk() pk 1–()–=
Kbrk() yk()– br k 1–()– yk 1–()+()=
Di k() ik() pk 1–()–=
ek 1–()
KT
S
T
i
-----------
AW wk 1 )–()vk 1–()–()
T
S
T
t
------


+=
Dd k() dk() dk 1–()–=
Dd k 1–()
T
d
T
d
NT
S
+
------------------------
yk() 2yk 1–()yk 2–()+()–()
T
d
KN
T
d
NT
S
+
------------------------
+=
SETTING
FUNCTION:
Enabled = 1
SETTING
BLOCKED:
Off = 0
AND
SETTING
ANTIWINDUP:
Enabled = 1
SETTING
PROCESS SIGNAL:
SETPOINT SIGNAL:
TRACKING SIGNAL:
SETTING
Run
T , K, b,
s
T , T , T , N
itd
AW
PID
AND
u > Tmin
SETTING
DEAD TIME:
|u| ms
Tdead
u > 0
AND
FLEXLOGIC OPERAND
PID 1 LOWER
AND
FLEXLOGIC OPERAND
PID 1 RAISE
u < 0
FLEXLOGIC OPERAND
PID 1 DELTA OUT
u
SETTING
max, min
Out=MAX(min,MIN(max,u))
ACTUAL VALUE
SETPOINT
u
ACTUAL VALUE
PID 1 OUT
832029A1.cdr