57160001-SH
兩處卸料小車自動控制的梯形圖如圖6-18b所示，它是在圖6-17b的基礎(chǔ)上根據(jù)新的控制要求修改而成的。小車在第一次碰到X5和碰到X3時都應(yīng)停止右行，所以將它們的常閉觸點與Y0的線圈串聯(lián)。其中X5的觸點并聯(lián)了中間元件M100的觸點，使X5停止右行的作用受到M100的約束，M100的作用是記憶X5是第幾次被碰到，它只在小車第二次右行經(jīng)過X5時起作用。為了利用PLC已有的輸入信號，用起保停電路來控制M100，它的起動條件和停止條件分別是小車碰到限位開關(guān)X5和X3，即M100在圖6-18a中虛線所示路線內(nèi)為ON，在這段時間內(nèi)M100的常開觸點將Y0控制電路中X5常閉觸點短接，因此小車第二次經(jīng)過X5時不會停止右行。
為了實現(xiàn)兩處卸料，將X3和X5的觸點并聯(lián)后驅(qū)動Y3和T1。調(diào)試時發(fā)現(xiàn)小車從X3開始左行，經(jīng)過X5時M100也被置位，使小車下一次右行到達X5時無法停止運行，因此在M100的起動電路中串入Y1的常閉觸點。另外還發(fā)現(xiàn)小車往返經(jīng)過X5時，雖然不會停止運動，但是出現(xiàn)了短暫的卸料動作，為此將Y1和Y0的常閉觸點與Y3的線圈串聯(lián)，就可解決這個問題。系統(tǒng)在裝料和卸料時按停止按鈕不能使系統(tǒng)停止工作，請讀者考慮怎樣解決這個問題。
HP 6206B DC Power Supply ,0-60V,5A / 0-30V,1A
HP 6281A DC Power Supply ,0-7.5V,0-5A
LEICA MICROSCOPE zoom 2000,Z45 L , excellent condition
TEKTRONIX ST2400 SDH/SONET SET WITH OPTION
FOTEC S FS370 238 FIBER POWER SOURCE
Agilent 37718A Omni-Ber 718 Communications Perbbbbance
OptiSpec EKE Light source For Video Microscope QTYS 5
HP 81689A Tunable Laser module.w opt 072
Agilent 83481A Dual rate optical/electrical plug-in Opt
EFD Model 1500XL Adhesive Dispenser
TEKTRONIX ST2400 SDH/SONET SET WITH OPTION
Vytran PTR-100 Automatic Fiber Recoater
WaveSplitter 1x2 C-band Fused Fiber Coupler
DiCom SCD1263 Forward Pump Islator
JDS Fibbb P/N WD1414-Z00033
Intermec MicroBar 9710 Decoder for Barcode Scanners
Visual Inspection / Alignment Station
Ando AQ8423Z Optical Amplifier Analyzer
Philips PM5193-M Programmable synthesizer / function ge
ADE 3401 Capacitive probe, 115V, 50/60Hz.
Hitec 3201-SP Proximic capacitive reactance tester
LeCroy 9374L Oscilloscope, 1GHz,
INO FAD-180 Benchtop Erbium-Doped Fiber Amplifier
Premises,Fiber NCA-8021-001 SM SBJ 13000 FT
JDS Oprel BBS-30-F1-131 Broadband light source
JDS Oprel OFA17-1241S Erbium Doped Fiber Amplifier
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LeCroy DDA-120 Disk Drive Analyzer. Color Oscilloscope
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Lambda LK-340A-FM-2108 regulated power supply
Lambda LPD-421A-FM dual output regulated power supply
Lambda LK-343A-FM regulated power supply
GN Nettest 9470 2 MBPS Protocol Analyzer
Lambda LK-342A-FM regulated power supply
TEKTRONIX ST2400 TRANSMITER SDH/SONET SET WITH OPTION
Ericsson Fusion Splicer FSU 925-A PM w /power
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Tektronix TDS694C REFURBISHED 3GHz 4CH 10GSa w options
OptiSpec EKE Light source 4 units
Corning Vascade L1000 Optical Bare Fiber 31km CPC6
DiCon GP700M Programmable Fiber Multi Switch 1x4
Tektronix TDS754C 500MHz 4CH 2GS/s Digital w options
DiCon GP700 Programmable Fiber Multi Switch 1x2
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Agilent 35670A Dynamic Signal Analyzer W Options
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HP 83485B 30 GHZ OPTICALPLUG-IN Band
Agilent 83493A Clock Recovery Module
Agilent J4233A, DWDM Transmitter Module
Agilent J4226A, DWDM Transmitter Module option std
Agilent E1676A 2.4 Gb/s SONET/SDH Transport Overhead
LeCroy DDA-125 Disk Drive Analyzer. Single 8 GS/s 16 M
OptiSpec ME3200 Fiber Optic Video Microscope
Hewlett Packard 37717C , Omniber717 WITH OPTS
Hewlett Packard 37717C with 110,A3B Omniber717
HP/Agilent E1406A VXI COMMAND MODULE
Agilent J4223A SpectralBER DWDM Controller with Option
TEKTRONIX VX4610 TEKTRONIX SDH/SONET GENERATOR RECEIVER
WaveSplitter 2x2 C-band Fused Fiber Coupler
Hewlett Packard 70842B Error Detector Module,
JDS Uniphase MAP+2B00 WITH Tunable grafing filter
HP 83480A / E2602A Digital Communications Analyzer
OptiSpec ME6000 Portable Fiber Optic Inspection Scope
OptiSpec module- scope Fiber Optic Inspection Scope
Agilent E1676B 2.4 Gb/s SONET/SDH Transport Overhead
JDSU SAMTA200 1X4 fiber optic switch bank w/ 8 modules
Agilent 8702A Lightwave Analyzer 300k-6Ghz w opt
JDS SA8MTA200 1x4 switch plug-in for MTA Mainframe
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Corning SMF LS Optical Bare Fiber100 km
Santec Wave LengthTunable Semiconductor Laser TSL-210
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LeCroy 9384AL Oscilloscope 1GHz,4GSa/s,4ch
Tektronix Model 7854 4 Channel Oscilloscope. With Opt.
WaveSplitter 2x2 C-band Fused Fiber Coupler
EFD Model 1500 XL Adhesive Dispenser
Ando AQ6315A Optical Spectrum Analyzer
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ANRITSU MP1651A ERROR DETECTOR, .05-3 GHZ
JDS HA9 Optical Attenuator
DiCon GP700 Programmable Fiber Multi Switch 1x32,1x4
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LeCroy DDA-120 Disk Drive Analyzer. Single 8 GS
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HP E4433B Signal Generator ESG-D Series250kHz- 4.0GHz
FOTEC M FM300 FIBER POWER METER
Photon Kinetics 7500 OTDR
Lecroy 452 500 MHz Wavesurfer DSO Digital Oscilloscope
fibersystems single mode fiber SMF-28 4 X10km w sc/upc
fibersystems single mode fiber SMF-28 4 X5km w sc/upc
Agilent 8164A lightwave measurement system
SPIRENT SMARTBITS 6000B LAN NETWORK ANALYZER NETCOM
JDS Fibbb Broadband Noise Source BNS1415
Agilent/HP 81554SM Laser Source Module 1310/1550 SM
WILCOM T207 LONGITUDINAL BALANCE TEST SET
HP 81689A Tunable Laser module.w opt 021
Tektronix TDS784D Digitizing Oscilloscope DC to 1GHz
Tektronix AWG520 / 003 Arbitrary Wavebbbb Generator
Single Mode fiber SMF-28 Optical Bare Fiber 100km
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Corning SMF-28 Optical Bare Fiber 200km / 4 spools
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Black & White Ikegami PM-930A Monitor Used W/Stand
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Anritsu MP1764C 12.5 GHz Error Detector with Option 01
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FIS 9050-0000 OV-LS Optical light source
Agilent 86100A Infiniium DCA Oscilloscope Mainframe
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Agilent 8494G 10MHZ-18GHZ POWER SENSOR W OPT 001
Agilent 4436A Attenuator DC to 1.5 MHz, 0-119.9 dB in 0
HDMI to VGA RCA Adapter Cable 5ft
JDS Fibbb RM3750B ( RM3750B+Z0001 ) Backreflect Meter
HP/Agilent 8156A Optical Attenuator with option 101
HP/Agilent 81536A InGaAs, +3 to -70 dBm, 800 to 1700nm
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TTC T-BERD211 Communications Test Sets T1 TRANSMISSION
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LeCroy 9314L Quad 300MHz Oscilloscope
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GN Nettest/Photonetics 3642HE L Tuneable Laser Source
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Agilent 10462A TTL Clock Pod for Agilent logic analyzer
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Fluke 27 Analog/Digital Multimeter, Handheld
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Agilent 3562A 2ch. 102Khz Dynamic Signal Analyzer
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Newport 9016 / 8605.8C Modular Controller w 6 ModuLes
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DiCon GP700 Programmable Fiber Multi Switch 1x32,2x1x4
EXFO IQ-206 / IQ-2400 w 6 ModuLes
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TEKTRONIX ST2400A SDH/SONET SET
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Alpha FIT221B-1/4-BK Heat Shrinkable Sleeve 100'
Agilent / HP 5314A HP 5314A Universal Counter
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Wiltron 54109A 2.20GHz network analyzer W Options
ILX Lightwave LDC-3900 Laser Diode Controller+ ModuLe
Sumiofcas HP-5 Protection Heater
Alpha tft 250 24 Teflon Tubing Natural
Agilent HP 8702D , 5753C , Color Replacement CRT
Corning SMF-LS Optical Bare Fiber 4.5 km CPC6
ANRISTU OPTICAL POWER METER ML93A / MA98A
ANRISTU OPTICAL POWER METER ML93B
Ando AQ8423B Optical Amplifier Analyzer
AT&T 1-4282 LI TEST SET, LITE BOX
Agilent 86100A Infiniium DCA Oscilloscope Mainframe
Agilent E5100A Network Analyzer With E5090A
SYMBOL LLS2104-I000 BARECODE SCANNER W PLUG
ITERMEC 1545 BARECODE SCANNER W PLUG
Lazer-bbbb BARECODE SCANNER W PLUG
Alpha tft 250 24 Teflon Tubing Natural Reel 1000ft
DiCom PA-8-62-SC Variable attenutor Plugin for GP700m
Agilent 8594E Spectrum Analyzer W Options 021 , 101,105
HP E5970A Optical Power Meter
Spirent SX-7410B Communication Analyzer Module
LUCENT SMF-28 SPECIAL BARE SINGLE MODE FIBER 25Km
Tektronix OTS91C1 10GB CLOCK/TRIGGER CARD
Anritsu MP1656A Portable STM-16 Analyze w 01,21
Tektronix OTS91C1 ,OTS91L1,CPU
Anritsu MS9020A OPTICAL LOSS TEST SET
Agilent/HP 10466A 3-State TTL/3.3V Data Pod for 16522A
Single Mode fiber SMF-28 Optical Bare Fiber 25.3km
JDS HA9 Optical Attenuator
Anritsu MS9720A WDM Network Tester
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