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11/20/2010 4:16:18 PM

11/10/2008 11:18:07 AM

CManager

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Invensys Systems, Inc

STG - ALARM LOGIC

8/9/2011 10:30:41 AM

STG_ALARM v1.36

1 of 5COVERManagerPRINTED BY

SHEETSHEET TITLE

ELEMENT

APPROVED BY

SheetTemplateCSHEET TEMPLATE

SG60016-TC1-TMC-LG-10001 0

Copyright (C) 2010 Invensys Systems, Inc

SAUDI ARABIAN MINING COMPANY(MA'ADEN)

MA'ADEN AMMONIA PROJECT

LOCATION: KINGDOM OF SAUDI ARABIA

ITCC1

FUNCTIONAL LOGIC DIAGRAMS FOR7A10-K01 NG COMP. , 7A10-K02 PA COMP. & 7120-J01-TS01 GEN.

DOC NO.: SG60016-TC1-TMC-LG-10001

CUSTOMER DOC NO.: MD-502-7000-IN-DGP-1025-1051

PROGRAM NAME: ALARM

PROGRAM DESCRIPTION: STG - ALARM LOGIC

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STG - ALARM LOGIC

STG_ALARM v1.36

2 of 5GOVERNOR VALVE COIL FAILURE ALARMSHEETSHEET TITLE

ELEMENTCopyright (C) 2010 Invensys Systems, Inc

STG - ALARM LOGICGOVERNOR VALVE COIL FAILURE ALARM

THE COIL STATUS FEEDBACK FROM THE GOV VALVE HIGH CURRENT I/O POINT IS WIRED INTO THE TS3000 ANALOG INPUT MODULE. THIS SIGNAL IS SCALED TO REFLECT THE ACTUAL mA OUTPUT. SHOULD THE SIGNAL DEVIATE FROM THE COMMAND OUTPUT VALUE, ONE COIL IS CONSIDERED FAILED AND AN ALARM WILL BE ISSUED. IF THE FEEDBACK IS BELOW THE MINIMUM LIMIT, BOTH COILS ARE CONSIDERED FAILED DUE TO SHORT CIRCUIT. IF THE FEEDBACK IS ABOVE THE MAXIMUM LIMIT, BOTH COILS ARE CONSIDERED FAILED DUE TO OPEN CIRCUIT.

NORMAL = 1ALARM = 0

IF THE E/I CONVERTER ON HCAO ETP IS HEALTHY AND THE FEEDBACK VALUE GOES ABOVE ALARM VALUE, THE COIL FAILURE ALARM IS ACTIVATED

IF THE E/I CONVERTER ON HCAO ETP IS HEALTHY AND THE FEEDBACK VALUE EXCEEDS 800 mA, THEN BOTH THE COILS ARE CONSIDERED FAILED (OUTPUT IS OPEN CIRCUIT).

001

CLKQ

R_TRIGTR_V1FAIL

002

OR

TRUE

FEEDBACK SIGNAL IS ONLY ACCURATE WHEN BOTH COILS ARE HEALTHY. IF ONE COIL IS FAILED OPEN CIRCUIT, THEN THE mA SIGNAL WILL NE APPRX. TWICE THE DMD_mA VALUE.

GOVERNOR COIL FAIL ALARM RESET

001

IN

PT

Q

ET

TONON_DLYRST

002

AND

fSV2401GOV_RST<value>GOVERNOR COIL FAIL ARLAM RESETAlias : n/a

T#1S

fSV2401GOV_RST<value>GOVERNOR COIL FAIL ARLAM RESETAlias : n/a

fSV2401GOV_RST<value>GOVERNOR COIL FAIL ARLAM RESETAlias : n/a

003

CI

V_FB

RESET

Demand

CO

ONE_FAIL

BOTH_FAIL

COIL_FAIL03COIL_FAILURE

00003

r7120SV2401<value>STG GOV. ACTUATOR OUTPUT (1-5-5)Alias : 33513

mALARM1<value>1 COIL FAIL ALARMAlias : n/a

m7120SV2401F<value>STG ACTUATOR COIL FB TX FAILAlias : 12432

mALARM2<value>2 COIL FAIL ALARMAlias : n/a

m7120V1ALM<value>STG GOV. ACTUATOR ONE COIL FAIL ALARMAlias : 12140

r7120SV2401F<value>STG ACTUATOR COIL FB (1-2-32)Alias : 33432

m7120SV2401F<value>STG ACTUATOR COIL FB TX FAILAlias : 12432

fSV2401GOV_RST<value>GOVERNOR COIL FAIL ARLAM RESETAlias : n/a

m7120V1FAIL<value>STG GOV. ACTUATOR 2 COIL FAILAlias : 12141

004

AND

005

AND

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0SG60016-TC1-TMC-LG-10001

STG - ALARM LOGIC

STG_ALARM v1.36

3 of 5CRITICAL SPEED BAND ALARMSHEETSHEET TITLE

ELEMENTCopyright (C) 2010 Invensys Systems, Inc

001

GE

002

LE

003

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STG - ALARM LOGICCRITICAL SPEED BAND ALARM

r7120SPEED<value>STG ACTUAL SPEEDAlias : 33021 k7120CRITL

<value>STG CRITICAL SPEED BAND - LOWER LIMITAlias : n/a

k7120CRITU<value>STG CRITICAL SPEED BAND - UPPER LIMITAlias : n/a

m7120SPDCRIT<value>STG TBN. SPEED IN CRITICAL SPEED ALARMAlias : 12142

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STG - ALARM LOGIC

STG_ALARM v1.36

4 of 5COMMON ALARM - TRANSMITTER FAILURESHEETSHEET TITLE

ELEMENTCopyright (C) 2010 Invensys Systems, Inc

STG - ALARM LOGICCOMMON ALARM - TRANSMITTER FAILURE

m7120MW2401<value>STG GEN. MW TX FAILAlias : 12076

m7120MW2402<value>STG REMOTE MW TX FAILAlias : 12077

m7120SE2401A<value>STG TBN. SPEED PROBE A TX FAILAlias : 12052

m7120SE2401B<value>STG TBN. SPEED PROBE B TX FAILAlias : 12054

001

AND

m7120TXFAIL<value>STG TX FAIL ALARMAlias : 12143

m7120SE2401C<value>STG TBN. SPEED PROBE C TX FAILAlias : 12055

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STG - ALARM LOGIC

STG_ALARM v1.36

5 of 5COMMON ALARMSHEETSHEET TITLE

ELEMENTCopyright (C) 2010 Invensys Systems, Inc

STG - ALARM LOGICCOMMON ALARM

m7120V1ALM<value>STG GOV. ACTUATOR ONE COIL FAIL ALARMAlias : 12140

m7120SPDCRIT<value>STG TBN. SPEED IN CRITICAL SPEED ALARMAlias : 12142

m7120TXFAIL<value>STG TX FAIL ALARMAlias : 12143

m7A10DIAGALM<value>TC1 DIAGNOSTIC COMMON ALARMAlias : 12022

m7120COMALM<value>STG COMMON ALARMAlias : 12144

m7120SV2401F<value>STG ACTUATOR COIL FB TX FAILAlias : 12432

001

AND

m7120V1FAIL<value>STG GOV. ACTUATOR 2 COIL FAILAlias : 12141

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