Response Electronics CL6011B Dokumentacja Pobierz pdf (Strona 63)

3Ć43 Theory of Operation: Point Processing

Original Ć June 1990 CE4.2:CL6211

Figure 3Ć11Ć14. PI/PID/Auto/Man/DDC or SUP Loop Point Block Diagram

HIGH OR LOW (C)

TRIP POINT (T)

DEADBAND (T)

ALARM

HIGH OR LOW (C)

TRIP POINT (T)

DEADBAND (T)

TRIP POINT (T)

NOTE: ONLY ONE

DEADBAND MAY BE

SPECIFIED FOR ALL

THREE ALARMS.

REVERSE OR

RESET LAST MODE? (C)

RESTART MODE (T)

MODE CONTROL

MODE

LOGIC

YES OR NO (C)

RESTART IVP (T)

RESTART

LAST IVP

DDC CONTROL FROM DATA HIGHWAY

MANUAL OUTPUT (0)

FROM CONSOLE OR

OUTPUT

TRANSFER

OUTPUT

TRACKING

IVP

LIMITS

VALVE

ACTION

CONTROLLER

CURRENT

OUTPUT

OUTPUT TRACKING/NORMAL (O)

IVP HIGH LIMIT (T)

IVP LOW LIMIT (T)

INCREASE OPEN/CLOSE (T)

IVP (0)

YES OR NO (C)

DEVIATION

CONTROL

ACTION

PID

ARW

SUPERVISORY CONTROL

SET POINT

TRANSFER

PV (0)

VALVE

ACTION

SP TRACKS

IN DDC

SP TRACKS

IN MAN

RESTART

LAST SP

Adaptive Gain PI/PID/I Auto/Man/DDC or SUP Loop Point Block Diagram

TRACK

CONTROL

RESTART

SET POINT (T)

SSS

YES OR NO (C)

SSSS

SSS S

SSS

INCREASE

OPEN/

TO OPERATOR

OPERATOR

FROM CONSOLE OR

DEADBAND (T)

NOTE: OUTPUT

TRACKING TAKES

PRECEDENCE OVER

INTEGRAL TRACKING

WHEN BOTH INPUTS

ARE SET.

CLOSE (T)

FROM DATA

HIGHWAY

DIRECT (T)

DEVIATION

ALARM

NOTES:

(C)

(T)

(O)

CONFIGURE

TUNE

OPERATE

ANALOG SIGNALS

DISCRETE SIGNALS

WATCHDOG

TIMER

RESET

OUTPUT TRACKING

OVERRIDES MANUAL? (C)

STATION

AND DATA

HIGHWAY

LOCAL SET POINT

FROM CONSOLE

OR DATA HIGHWAY

STATION AND

DATA HIGHWAY

OPERATOR STATION

YES OR NO (C)

TIMEOUT TIME (T)

COMPUTER BACKUP MODE? (T)

OPERATOR STATION

STATION AND DATA

HIGHWAY

TRACK

VALUE

SP (0)

SET POINT

LIMITS

SP HIGH

LIMIT (T)

SP LOW

LIMIT (T)

TO OPERATOR

STATION AND

DATA HIGHWAY

YES OR NO (C)

VELOCITY LIMIT (T)

DEVIATION

PROCESS

VARIABLE

INPUT

TO DATA

(0)

DEVIATION

ALARM (0)

ALARM B(0)

ALARM C

HIGHWAY

TO DATA

HIGHWAY

TO OPERATOR

STATION AND

OPERATOR

STATION

ALARM B OR C (0)

DATA HIGHWAY

OUTPUT

TRACK

LOGIC

INTEGRAL

TRACK

LOGIC

(O)

RESET

OUTLET SVA

INLET SVA

SEE NOTE A

SET POINT

VELOCITY

LIMIT

GAIN (T)

RESET (T)

RATE (T)

ARW HIGH LIMIT (T)

ARW LOW LIMIT (T)

SSSSS

NOTE: RATE ACTION ON PV ONLY

NOTE A:

PV ADAPTIVE GAIN ENABLE (C)

PV LOW BREAKPOINT (T)

PV HIGH BREAKPOINT (T)

PV LOW GAIN FACTOR (T)

PV HIGH GAIN FACTOR (T)

DEVIATION ADAPTIVE GAIN ENABLE (C)

DEVIATION LOW BREAKPOINT (T)

DEVIATION HIGH BREAKPOINT (T)

DEVIATION LOW GAIN FACTOR (T)

DEVIATION HIGH GAIN FACTOR (T)

VO ADAPTIVE GAIN ENABLE (C)

VO LOW BREAKPOINT (T)

VO HIGH BREAKPOINT (T)

VO LOW GAIN FACTOR (T)

VO HIGH GAIN FACTOR (T)

GAIN LIMIT (T)

SSSSSSSSSSSSSSS S

NOTE B:

SEE NOTE B

FEEDFORWARD FUNCTION LOCATION;

REFER TO FST SECTION FOR FDFW

DESCRIPTION

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