cov khoom

IS200VAICH1C yog VME Analog Input/Output (VAIC) Board tsim los ntawm General Electric raws li ib feem ntawm Mark VI Series siv nyob rau hauv roj turbine tswj systems. Analog Input/Output (VAIC) board txais 20 analog inputs thiab tswj 4 analog outputs. Txhua lub davhlau ya nyob twg board txais 10 inputs thiab 2 outputs. Cables txuas lub davhlau ya nyob twg board rau VME khib qhov twg VAIC processor board nyob. VAIC hloov cov khoom nkag mus rau cov txiaj ntsig digital thiab hloov lawv hla VME rov qab mus rau VCMI pawg thawj coj saib, thiab tom qab ntawd mus rau tus maub los. Rau cov zis, VAIC hloov cov txiaj ntsig digital rau cov tam sim no analog thiab tsav cov no los ntawm lub rooj tsav xwm davhlau ya nyob twg rau hauv cov neeg siv khoom siv hluav taws xob. VAIC txhawb nqa ob qho tib si simplex thiab triple modular redundant (TMR) daim ntawv thov. Thaum siv nyob rau hauv TMR teeb tsa, cov tswv yim tawm tswv yim ntawm lub rooj tsav xwm davhlau ya nyob twg tau tawm mus rau peb VME pawg thawj coj saib R, S, thiab T, txhua tus muaj VAIC. Cov teeb liab tso tawm tau tsav nrog lub tswv yim hluav taws xob uas tsim kom muaj qhov xav tau tam sim no siv tag nrho peb VAICs. Nyob rau hauv qhov kev tshwm sim ntawm ib tug hardware tsis ua hauj lwm, qhov phem VAIC raug tshem tawm los ntawm cov zis thiab cov seem ob lub rooj tsavxwm txuas ntxiv tsim kom raug tam sim no. Thaum siv nyob rau hauv ib qho yooj yim configuration, lub davhlau ya nyob twg board muab input signals rau ib tug VAIC, uas muab tag nrho cov tam sim no rau outputs.
Kev sib haum xeeb

Muaj ob tiam ntawm VAIC pawg thawj coj saib nrog cov rooj sib tham sib tham. Thawj VAIC suav nrog tag nrho cov qauv ua ntej thiab suav nrog VAICH1C. VAICH1B suav nrog rau tiam no. Thaum tsav tsheb 20 mA outputs cov boards txhawb nqa txog 500 load kuj thaum kawg ntawm 1000 ft ntawm #18 hlau. Lub cim ntawm lub rooj tsavxwm no xav tau lub rooj tsavxwm davhlau ya nyob twg TBAIH1B lossis ua ntej rau kev ua haujlwm kom raug. Lawv kuj ua haujlwm zoo nrog txhua qhov kev hloov kho ntawm DTAI davhlau ya nyob twg boards. Qhov tshiab tshaj plaws VAICH1D thiab txhua qhov kev tso tawm tom ntej no yog tsim los txhawb nqa kev ua haujlwm siab dua rau 20 mA cov zis tawm hluav taws xob: mus txog 18 V yog muaj nyob rau ntawm lub rooj tsavxwm board ntsia hlau terminals. Qhov no tso cai rau kev ua haujlwm rau hauv cov khoom ntawm 800 nrog 1000 ft ntawm # 18 xaim nrog cov npoo. Lub cim ntawm pawg thawj coj no xav tau TBAIH1C lossis tom qab, lossis ib qho kev hloov kho ntawm STAI.

Daim duab 1: VAIC, Analog Input Terminal Boards, thiab Cable (TMR System)

INSTALLATION

• Fais fab rau VME processor khib

• Xaub rau hauv lub rooj tsavxwm thiab thawb lub sab saum toj thiab hauv qab levers nrog koj txhais tes los zaum nws cov ntug txuas

• Tighten lub captive screws nyob rau sab saum toj thiab hauv qab ntawm lub vaj huam sib luag pem hauv ntej

Kev ua haujlwm

VAIC board txais 20 analog inputs, tswj 4 analog outputs, thiab muaj cov teeb liab txias, analog MUX, A / D converter, thiab D / A converter. Hom analog input, xws li voltage, 4-20 mA, los yog terminal board. Ob ntawm plaub lub analog tso zis hluav taws xob yog 4-20 mA thiab lwm qhov tuaj yeem teeb tsa rau 4-20 mA lossis 0-200 mA. Inputs thiab outputs muaj suab nrov tiv thaiv circuitry los tiv thaiv surge thiab high-frequency suab.

Fig 2: VAIC thiab Analog Input Terminal Board, Simplex System

Hauv TMR system, analog inputs kiv cua tawm mus rau peb lub racks los ntawm JR1, JS1, thiab JT1. Lub 24 V dc fais fab rau cov transducers los ntawm tag nrho peb VME racks thiab yog diode LOSSIS xaiv ntawm lub davhlau ya nyob twg board. Txhua qhov analog tam sim no tso tawm yog pub los ntawm cov dej ntws los ntawm tag nrho peb VAICs. Qhov tseeb tso zis tam sim no yog ntsuas nrog ib tug series resistor, uas pub ib tug voltage rov qab rau txhua VAIC. Cov txiaj ntsig tau txais yog qhov pov npav nruab nrab tus nqi (qhov nruab nrab) ntawm peb qhov tam sim no. Cov duab hauv qab no qhia VAIC hauv kev npaj TMR. Transmitters / transducers tuaj yeem siv los ntawm 24 V dc qhov chaw hauv kev tswj hwm lossis tuaj yeem siv tau ntawm nws tus kheej. Diagnostics saib xyuas txhua qhov tso zis thiab kev tua tus kheej relay disconnects cov khoom tsim tawm yog tias qhov txhaum tsis tuaj yeem raug tshem tawm los ntawm cov lus txib los ntawm lub processor. Kho vajtse lim ntawm lub davhlau ya nyob twg board suppress high-frequency suab. Ntxiv cov ntxaij lim dej ntxiv ntawm VAIC muab kev teeb tsa qis dhau kev lim dej.

COMPRESSOR STALL DETECTION

VAIC firmware suav nrog cov roj turbine compressor nrhiav kom pom, ua tiav ntawm 200 Hz. Ob lub algorithms tuaj yeem xaiv. Ob leeg siv thawj plaub analog inputs, scanned ntawm 200 Hz. Ib qho algorithm yog rau me me LM roj turbines thiab siv ob lub siab transducers (saib rau daim duab, Me (LM) Gas Turbine Compressor Stall Detection Algorithm). Lwm algorithm yog rau hnyav-duty roj turbines thiab siv peb lub siab transducers (saib rau daim duab, Heavy Duty Gas Turbine Compressor Stall Detection Algorithm). Real-time inputs yog cais los ntawm configured parameters rau clarity. Cov parameter CompStalType xaiv hom algorithm uas yuav tsum tau, ob qho tib si transducers lossis peb. PS3 yog lub compressor tawm siab. Ib qho kev poob hauv qhov siab no (PS3 poob) qhia tau tias muaj peev xwm compressor chaw. Lub algorithm kuj xam tus nqi ntawm qhov kev hloov pauv ntawm qhov tso tawm siab, dPS3dt, thiab sib piv cov nqi no nrog kev teeb tsa chaw nres tsheb (KPS3 qhov tsis tu ncua). Lub chaw nres tsheb compressor yog pib los ntawm VAIC, uas xa cov teeb liab mus rau tus maub los qhov twg nws yog siv los pib kaw. Lub teeb liab kaw tuaj yeem siv los teeb tsa tag nrho cov roj kaw-off li qub (FSOV) los ntawm txhua qhov tso tawm relay.

Peb LEDs nyob rau sab saum toj ntawm VAIC pem hauv ntej vaj huam sib luag muab cov ntaub ntawv xwm txheej. Qhov xwm txheej RUN ib txwm yog flashing ntsuab, thiab FAIL yog xim liab. Qhov thib peb LED qhia STATUS thiab yog ib txwm tawm, tab sis qhia cov txiv kab ntxwv tsis tu ncua yog tias muaj teeb meem kuaj mob tshwm sim ntawm lub rooj tsavxwm. Diagnostic checks muaj xws li cov hauv qab no:

• Txhua qhov kev tawm tswv yim analog muaj cov khoom siv txwv tsis pub kuaj xyuas raws li kev teeb tsa ua ntej (tsis yog-configurable) siab thiab qis qis teev ze rau qhov kawg ntawm kev khiav hauj lwm ntau. Yog tias qhov kev txwv no dhau qhov teeb meem logic tau teeb tsa thiab cov tswv yim tsis raug luam tawm lawm. Yog tias muaj L3DIAG_VAIC, uas yog hais txog tag nrho pawg thawj coj saib. Cov ntsiab lus ntawm tus kheej kev kuaj mob muaj nyob rau ntawm lub toolbox. Cov teeb liab kuaj tau tuaj yeem raug latched tus kheej, thiab tom qab ntawd rov pib dua nrog RESET_DIA teeb liab.

• Txhua qhov kev tawm tswv yim muaj kev txwv kev kuaj xyuas raws li kev teeb tsa siab thiab qib qis. Cov kev txwv no tuaj yeem siv los tsim lub tswb thiab tuaj yeem teeb tsa rau kev qhib / kaw, thiab ua latching / tsis-latching. RESET_SYS rov pib dua qhov kev txwv tsis pub dhau.

• Hauv TMR systems, yog tias ib qho teeb liab txawv ntawm tus nqi pov npav (tus nqi nruab nrab) los ntawm ntau tshaj li qhov kev txwv, qhov teeb liab tau txheeb xyuas thiab tsim qhov txhaum. Qhov no tuaj yeem muab qhov qhia ntxov ntawm qhov teeb meem tsim nyob rau hauv ib qho channel.

• Saib xyuas D/A outputs, tso zis tam sim no, tag nrho tam sim no, suicide relays, thiab 20/200 mA scaling relays; cov no raug kuaj xyuas qhov tsim nyog thiab tuaj yeem tsim qhov txhaum.

• TBAI muaj nws tus kheej cov cuab yeej ID uas raug nug los ntawm VAIC. board ID yog coded rau hauv ib tug nyeem nkaus xwb nti uas muaj lub davhlau ya nyob twg board serial tooj, board hom, kho tus naj npawb, thiab lub JR, JS, thiab JT connector qhov chaw. Thaum lub nti tau nyeem los ntawm I / O processor thiab tsis sib haum xeeb tau ntsib, qhov teeb meem ntawm hardware incompatibility yog tsim.