ML23241A443

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.7-6, Drawing 495860, Sheet 1, Rev. 2, I & C Functional Logic Diagram Digital Feedwater Control System FW Flow Controller & Cv Demand

ML23241A443
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: ML23241A443 (1)

Text

TO F'E!OWATER FLOW ARBJTRATE (SHEET 18J OElrlANOE TOTAi..

FLOW COEFFICIENT FLOW CONTROLLER ------i-~-c;JiAOL J!vE AHO TRACKING !,.OGIC SEQUENCING

-1 Kn* ipl 5 ~

I (SHEET ZOJ

' l

',I AVE:RAGE LOOP 1 .0. p u STEAM PRESSURE l -----, !SHEET 181 I I I I 1

l 1

FEEOWATER H~A0£A _:<i)l I

I I

i PRESSUFIE (SHEET 18)--

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¢ -~

ISHEETl3l LEVEL CONTROLLER T___ i TURB INE HIGH POWER MOOE

• tNOTE 21 JNO{VIWAL LOOP

- '---- ! rJ:,~---

1ST STAGE

~

FEEOWATER PRESSURE FLOW 0£MANCI I'!., i APn.

cco*sr**TJ I!

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--1K,i~n*~1r-LE VEL CONTROLLER LOW POWER t.!OOE HIGH/LOW PCM::R MODE SELECT ~:t TOTAL TRACKING FLOW CCEFF"ICIENT

-~I!!..-- FROM CONTROL VALVE SECUENCJNG &

TRACKING LOGIC F'EEOWATER (SHEET 20)

FLOW OE MANO TRACKING SIGNAL NOTES ,

I. ONE LOCI' SHOWN. TVPlCAL FCM ALL LOOPS.

REFERENCES WE OWG PG&E OWG JW lNDICATION IS :PF'.OV1DED FOR EACH 1 oc,p

)WI M, 1NDICAT!ON IS PROVIDED FOR EACH LOOP F' 4, BOP.RD Il-TDICATION IS ?ROM ADFlNCS OUTPUT .t*.LL OTEER RECORDER VALVES AND l. F' ]1'JAL RIP IGNAI 49' 84 Il*TDICATION8 ON TIHS DRAWTI*iG ARE P?..0 v:DED ON TilE.D ?Vll'CS HMI 4. F'NT[I' L <\NDE' CK n: 1<4,1 F T[ 'AL L\NT TIMTF P l,fJAL 49' 4'

4. DO\\n*T POWEF. TR,u,rsIENT IS TRUE FOR LOSS OF CWP, LOSS OFFW:', OVER

- 11 ,fJAI ~':l. A~f Pom:J0 VER TEMP DELTA T RT.m BACK, ST AT OR COOLANT F.TJNE,ACK, OF.

STEAf.1 PRESSURE mc:?.EASiNG QUICF.L Y (IE 3'.APID LO AD DECREASE)

FN l 'JAL RP n A4 F'; ]1'JAL Al JA N l,NAL 49' 41

F.ESETS FOLLOWING A TTh-1:E DEL.t..Y .Ll..FTE:?. STE.L:.J,1 PRESSURE RATE OF I. F 'N ] 1 ' AL lNTk AN R B K 49'849 CH.~J,TGE HAS :iE CREASED BELOW Tr:::E THRESHOLD VALTJE F' Tj1' L ~M TFAH DJ C JNTI RE?ER TO TH:E D?'N"CS FCTNCTION.t..L F..EQUIF.E:.v.IENTS DOCUMENT F"N - l 1 'IAL PRE JR! 'l P JRl N[ ~VE 'rHR( ~':l'. A I DF..Ji.\ilffi-l"G 663195 - :="0:5: LOGIC D:SSCRIPTIOH F" Tj1'AL PRE JR] HE T~R NT F'N 7 ]1' L EE'1WATER OfJTR LAN[ I L - JN 49'1<

6 . RESET SIGNAL SAME AS DESCR IB ED I N NOTE 4 -1 'JAL EEIIWATEk OfJTRL AN[ A- IN "19'. "1 FN l 'JAL UX Af FE PU~ !Af U ~':l'. A U !NE RIP UNA K 40'A

]1,NAL 49'.

49'8 fiP 1 T G1iAL l[]A-

',/ F CINTRO 'l JE-1.ANIJ VC RACK rJ I 49' I GI 49'8 HEM. 4' KEY DWG . SECT I 0N_3_

DIAGRAM  ;,"i',\'.',"'}"c'rn"~,'./c', CONTROL SYSTEM F,.r Cv DEMAND h ~~~==~=-'