TSXAEY1600產(chǎn)品說明:
TSXAEY1600
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故障檢測的選擇 假若在每一步序段對所有的輸入控制電器全部進(jìn)行檢測,這將使梯形圖非常繁雜。經(jīng)分析和實(shí)際運(yùn)用證明,不需要在每步序段對所有輸入控制電器進(jìn)行短路檢測,只要在某步序段檢測一個(gè)有關(guān)的輸入電器即可。一般選取每一步序段中LD指令的控制電器,即開始某段程序的控制電器。 三、輸入控制電器開路故障的檢測 1、開路故障的分析與設(shè)計(jì) 在PLC控制系統(tǒng)正常運(yùn)行的狀態(tài)下,每一步序都有一定的時(shí)間間隔。若輸入控制電器出現(xiàn)了開路故障,則系統(tǒng)將無法轉(zhuǎn)入下一步的工作而停頓。故必須檢測出控制電器的開路故障。要檢測開路故障只要將有關(guān)步序的步序狀態(tài)指示器的常開點(diǎn)和下一步步序狀態(tài)指示器常閉點(diǎn)及定時(shí)器的線圈串聯(lián)起來,在該步序段開始時(shí)立即定時(shí),當(dāng)該步序段結(jié)束并轉(zhuǎn)入下一步后使定時(shí)器復(fù)位。若系統(tǒng)在定時(shí)器設(shè)定時(shí)間內(nèi)結(jié)束該步,定時(shí)時(shí)間到,則其常開點(diǎn)閉合,指示出故障信號。定時(shí)器的定時(shí)值的選取需要注意以下兩點(diǎn):一是保證系統(tǒng)迅速檢測出開路故障;二是準(zhǔn)確的定時(shí)時(shí)間(即步進(jìn)時(shí)間)需要現(xiàn)場調(diào)試確定。 2、故障檢測的選擇 對大量輸入控制電器進(jìn)行開路檢測必將占用較多的定時(shí)器,而PLC內(nèi)部定時(shí)器數(shù)量有限,故對控制電器的檢測可作如下處理: (1)對于步序時(shí)間相同且有間隔的步可共用一個(gè)定時(shí)器。 (2)開路故障檢測選取某步序段前OUT的控制電器。 (3)選擇故障率高的控制電器進(jìn)行檢測。 四、故障檢測的設(shè)計(jì) 1、瓶簽檢測系統(tǒng) 瓶簽檢測系統(tǒng)如圖1所示。 系統(tǒng)中有光電開關(guān)0001和0002檢查傳送帶上的瓶子。若檢測到無標(biāo)簽的瓶子則0001通,這時(shí)系統(tǒng)控制一個(gè)機(jī)械手從A傳送帶拿開并放到B傳送帶上。當(dāng)機(jī)械手回到始位后,機(jī)械手原始位置0004檢測接通,同時(shí)系統(tǒng)還對無標(biāo)簽的瓶子進(jìn)行計(jì)數(shù),當(dāng)計(jì)數(shù)值達(dá)到設(shè)定值時(shí)報(bào)警燈亮。
公司主營:世界知名品牌的PLC 、DCS 系統(tǒng)備件 模塊
Allen-Bradley(美國AB)系列產(chǎn)品
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NEW Aaliant BEP 2" Magnetic Flowmeter Venture Measurement 150 PSI 6202 316 PTFE
NEW Aaliant BEP 1.5" Magnetic Flowmeter 1 1/2" Venture Measurement 150PSI 6201.5
NEW Allen Bradley 1775-ME8 Error Correcting RAM 1775ME8 AB A B NIB
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Telemecanique ATV71HU22M3 3HP Altivar 71 AC Drive 240v NIB/NEW ATV71 3 HP
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Square D Circuit Breaker FAL36045 45A NEW FAL-36045 NIB Auxiliary Switch 45 Amp
GE TEB111060 60A Breaker 120V General Electric TEB-111060 60 Amp 1-Pole NEW/NIB
CH/Westinghouse ED322W 225A Breaker Cutler Hammer ED322-W 225 Amp NIB/NEW
Ferraz Shawmut A072B1DAR0-3R 7200V Current Limiting Circuit Amp-trap Mersen Fuse
Ferraz Shawmut A072B1DAR0-4R 7200V Current Limiting Circuit Amp-trap Mersen Fuse
Ferraz Shawmut A072B1DAR0-9R 7200V Current Limiting Circuit Amp-trap Mersen Fuse
Challenger Type CB CB2150 150 Amp 150A A 2 pole NIB
Westinghouse 2817C83G04 Sensor 1600 Amp A 1600A NEW
IT 500T-401 Current Transber 400:5 A Split-Core NIB
NEW Toshiba VT130G7U4330 G7 30 HP 460V AC VS Drive NIB Inverter VT130G7 U4300
Rudolf 800:5 A Current Transber 5A
CRS Vickers NEW PVB10 FLSFW Hydraulic Variable Piston Pump 10 GPM NIB
GE 631X32 Current Transber CT 600:5 A 5A JCH-0 NIB
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Foxboro NIB New in Box Board Module PLC 2AX+MUL 2AX-MUL C0153FB Rev. C St B
Foxboro NIB New in Box Board Module PLC M0155HA M0155HB Rev. D
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SOLA 86-85-3310 Component Custom Rectifier 86853310 NIB
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NEW Honeywell ST 3000 Smart Transmitter STF924-A1A-011F0-DE,1C+XXXX P654333SM0E
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NEW Accu-Sort EZReader HF 13.56 MHz RFID Reader w EZTune PLC 26-05-4758 Systems
NEW Accu-Sort EZTune Auto-Tuning RFID Antenna PLC 26-05-4995 Systems 0111251001
NEW Exair Model 11024 24" Super Ion Air Knife 250 PSIG PLC Ionizing Bar In
Gould Shawmut 225-007-969 Amp Trap CL-14 20E 15.5kV NIB
Westinghouse 9570D02G05 CXN Fuse 85A 85 Amp 15.5kV 15500V NIB
Cutler Hammer NEW IQ Analyzer 2D82302G01 6000 Series Westinghouse 8793C15G01 PS
Honeywell Microswitch FE-TRBU TRB Series NIB
GE 9F60CED005 Fuse 5E EJ-1 5 Amp General Electric 9F60
Pacific Scientific R32GMP-R2-NS-NV-07 DC Servo Motor PacSci Pac-Sci
General Electric 9F62FDD175 Fuse 175E 15.5kV 15500V NIB
Allen Bradley 1336S-B010-AN-EN4/D VS AC Drive 10 HP NIB
NEW Maxon 3" 808 CP 1 Safety Shut-Off Valve Natural Gas Nat 3" 808CP1 40 MOP PSI
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ABB ESB43175L 175A Breaker 480V NEW Type ES 175 Amp 480 VAC ESB43175-L NIB
ABB ESB43125L 125A Breaker 480V NEW Type ES 500 VDC 125 Amp 480 VAC NIB
Carriere NEW FB600ER RMS Breaker Trip Unit 5-2511-0002 LSIG NIB Schneider CTI FB
NEW Dodge 20Q10HA14 Tigear-2 Reducer NIB Ratio 10:1 725 lb in Torque Out 2.25 HP
Honeywell NEW 9010-016C 9100E Logic Processor 9010016C Ver
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Lambda DSP60-24 100-240VAC Power Supply 24VDC 60W DSP6024 47-63Hz 1500mA
NEW Impulse 460AFD15-G+ 15HP VS Drive 460V CIMR-G3U4011 Magnetek 15 HP 27A 3PH
NEW Rexroth Indramat DKC01.3-040-7-FW ECO Servo Drive DKC01.30407FW 11279426
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NEW Dodge Size C3 Adapter Assy 72958507 Gearbox Reducer 8 RPM 2" 353047 0986716