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Chapter 7 Usage of Various Functions
7-30
ⓐ
Relay response method.
•
PID parameters are obtained by On/Off operation during 1 cycle of PV variation.
•
PID parameters are obtained by amplitude and period of oscillation
•
The On/Off operation will be occur at the SV value.
ⓑ
Process reaction curve method(PRC method).
•
PID parameters are obtained by step response of process.
•
It is useful fo r time 1
st
order time delay system expressed as following
1
+
−
Ts
e
K
Ls
•
Obtained parameters may not accurate if the process can’t approximated to 1
st
order system, In this
case, use relay response method.
SV
Period
Amplitude
MV
80% of SV
MV
4000
Time delay(L)
63% of SV
Time constant(T)
Содержание MASTER-K 120S Series
Страница 26: ...Chapter 4 Names of Parts 4 3 2 K7M DRT60U 3 K7M DT60U 4 1 2 40 points main unit Standard 1 K7M DR40U ...
Страница 27: ...Chapter 4 Names of Parts 4 4 2 K7M DRT40U 3 K7M DT40U 4 1 3 30 points main unit Standard 1 K7M DR30U ...
Страница 28: ...Chapter 4 Names of Parts 4 5 2 K7M DRT30U 3 K7M DT30U 4 1 4 20 points main unit Standard 1 K7M DR20U ...
Страница 29: ...Chapter 4 Names of Parts 4 6 2 K7M DRT20U 3 K7M DT20U 4 1 5 30 points main unit Economic 1 K7M DR30UE ...
Страница 138: ...Chapter 7 Usage of Various Functions 7 54 c Program ...
Страница 306: ...Appendix 3 External Dimensions App3 2 2 Slim type G7E DC08A G7E RY08A G7F ADHB G7F DA2V G7F RD2A ...