Delta AS Series Programming Manual page 761

AS Ser ies Pro gra mm in g M anu al
_6
PID formula:
1. When the PID_MODE is set to 0, the mode is set to auto:

Independent Formula & Derivative of E(PID_EQ=False & PID_DE=False)
MV
=

Independent Formula & Derivative of PV(PID_EQ=False & PID_DE=True)
MV
=
MV =

Dependent Formula & Derivative of E(PID_EQ=True & PID_DE=False)
6-482
t
dE
∫
K E Ki E dt K *
+ + +
P d
dt
0
t
dPV
∫
K E Ki E dt K *
+ −
P d
dt
0
Or
t
dPV
∫
K E + Ki E dt + K *
P d
dt
0
 t
1
∫
MV = K E + E dt + T

c d
T

i 0
BIAS (E = SV – PV or E = PV – SV)
(E = SV – PV)
BIAS
+
(E =PV – SV)
+ BIAS

dE
(E = SV – PV or E = PV – SV)
* + BIAS

dt
