ML23241A621

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.7-6, Drawing 495890, Rev. 2, Sheet 1, Electrical Functional Logic Diagram Digital Feedwater Control System FW Flow Controller & Cv Demand

ML23241A621
Person / Time
Site:	Diablo Canyon
Issue date:	05/25/2023
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23241A052	List: DCL-23-044, 7 to Updated Final Safety Analysis Report, Chapter 9, Figure 9.4-10, Drawing 512904, Revision 15, Mechanical Air Monitoring Technical Support Center and Post-Accident Sampling System Air Flow Diagrams ML23241A053 ML23241A054 ML23241A055 ML23241A056 ML23241A057 ML23241A058 ML23241A059 ML23241A060 ML23241A061 ML23241A062 ML23241A063 ML23241A064 ML23241A065 ML23241A066 ML23241A067 ML23241A068 ML23241A069 ML23241A070 ML23241A071 ML23241A072 ML23241A073 ML23241A074 ML23241A075 ML23241A076 ML23241A077 ML23241A078 ML23241A079 ML23241A080 ML23241A081 ML23241A082 ML23241A083 ML23241A084 ML23241A085 ML23241A086 ... further results
References
DCL-23-044
Download: ML23241A621 (1)

Text

FROM I NPU T SIGNAL VALIDATION TO FEEDWATER

!SHEET 18) FLOW ARBITRATE (SHEET 18)

~STEAM F LOW

--~

~

-~ ----------, I DEMANDED TOT AL FLOW COEFFICENT

-~ Cm LOOP STEAM FLOW

~ i------,----~l) } - - - - - - - ,-* ----- -~ 1-c-;~;;; L VA L ~~ SEQUENCING ANO TRACK IN G LOGIC LOOP 6 [

( SHEET 20 )

FEEDWATER FLOW AVERAGE LOOP STEAM PRESSURE

!SHEET 18 )

,,,c L-----~-

9 i

t,PE L

( CONSTANT l HIGH, LOW POWER MODE SELECT w,wo1 r---

FEEDWATER FLOW DEMAND TRACKING SIGNAL (CONSTANT)

NO - LOAD LOOP WIDE RANGE LEVEL ADFCS SET PO I NT MANUAL NOTES:

( SHEET 20 I I . ONELOOPSHO,,,'N, TYPICAL FOR ALL LOOPS.

2. HIGH PO,iER MOOE INDICATION IS PROVIDED FOR EACH LOOP.

LOOP WR S, G LOWPO',IERMOOE !NOICAT!ON ISPROV!DEOFOREACH LOOP.

LE VEL BAD QUAL ITY 3. BOARD INDICATION IS FROM A DFWCS OUTPUT. ALL OTHER RECORDER VALUES AND INDJCAT I ONONTHJSORAW!NGAREPROV!OEDONTHEOFWCSHM I .

4. oo*i. Po*R TRA HS !Ei.T IS TRUE FOR LOSS OF (\IP, LOSS OF FIIP , OVER POWEA10VEA TEMP DELTA T AUH~An, STATOR COOLll1G AUH~ACk, OR ST[AMPRESSUAE l11CAEASl11G OUIULY (].[, RAP ID LOAD DECAEAS[I, RESETSFOLLOillHGATIMEOELAYAFTERSTEAMPRESSURERATEOFCHAHGE HAS DECREASED ~ELD\/ THE THRESHOLD VA LUE.

5. REFERTOTHEOFWCSFUNCT IONALREOUIREMENTDOCUMENTDRAWING663195-27 FOR LOGIC DESCRIPTION.

6. SHEETNUMBERSREFERTOTHEREFERENCENUMBERSBELOW .

~

REFERENCES (NOTE 6 1 WE DWG PG&E OWG

'* FUNCTIONALLOGICDIAGRAMINDEXANDSYMBOLS

2. FUNCTIONALLOGICDIAGRAMREACTORTRIPSIGNALS 5653D74 - I 5653D74-2 49587 I 495872 l . FUNCTIONAL LOGIC DIAGRAM NUCLEAR INSTRANDMANUALTRJPSJGNALS 5653074-3 495873 FUNCTIONAL LOGIC DIAGRAM NUCLEAR INSTR PERMISS JVESANDBLOCKS 5653D74-4 495874 FUNCTIONALLOGICDIAGRAMPRIMARYCOOLANTSYSTEMTRIPSIGNALS 6 . FUNC T IONALLOGICD!AGRAMPRESSUR IZERTR IPS IGNALS 5653D74 -5 5653074 -6 495875 495876 L

1. FUNCTIONALLOGICDJAGRAMSTEAMGENERATOR TR IP SIGNALS 8 . FUNC T IONALLOGICDIAGRAMSAFEGUAROSACTUAT IONS IGN ALS

9. FUNC T IONALLOGICD!AGRAMROOCONTROLSANDROOBLOCKS 5653074 - 7 5653D74-8 5653074 -9 495877 495878 495879 11

,o. FUNC T IONAL LOGIC DIAGRAMSTEAMDU W CONTROL 5653D74- I O 495880 1"'* "* FUNCTIONALLOGICOIAGRAMPRESSURIZERPRESSUREANOLEVELCONlROL

'2. FUNCTIONALLOGICDIAGRAMPRESSURIZERHEATERCONTROL 5653074-1 1 5653074- 12 495881 495882

,,.l

,i. FUNCTIONALLOGICDIAGRAMFEEDWATERCONTROLAND ISOLAT I ON 5653D74- 13 495883

,s.

FUNC T IONAL LOGIC DIAGRAM FEEDWATER cmnROL AND ISOLATION FUNC T IONALLOGICDIAGRAMAUXILIARYFEEOWATERPUMPSSTARTUP 5653074-14 5653074- 15 495884 495885

"* FUNC T IONALLOGICDIAGR AMTURBINETRIPS . RUNBACKS&SIGNALS 5653074- 16 495886

,a.

FUNC T IONALLOGICD!AGRAMAMSACS IGNALS FUNCTIONALLOGICDJAGRAMSEISM!C TRIP 5653074 - 17 8759077 495887 495888

,s. FUNCTIONAL LOGIC DIAGRAM DIGITAL FW COtH SYS INPUT SIGf!AL VALIDATION 5653D74- 18 495889 20 . FUNC T IONALLOGICDJAGRAMD I GlTALFWCONTSYSFWFLOWCONTROLLER&CvDEMAND 5653074-19 495890 2'. FUNCTIONALLOGICDJAGRAMDIGJTALFWCONTSYSCONTVCVSEOt>..TRACKINGLOGIC 5653074-20 495891

22. FUNC T IONALLOGICDIAGRAMDIGITALFWCONTSYSSIGNALSELECTORLOGIC 5653D74-21 495892 2l. DRAWING INOEXSOLIDSTA TEPROTEC T IONS YS JN TERCOflN[CTION&SCHEM. DIAGRAM 1080442-1 458862 KE Y DWG . SECT I0N_3_

UNIT 2