F7133黑馬德國F7133黑馬德國
兩個(gè)交流接觸器同時(shí)工作，它們的主觸點(diǎn)都閉合，必將造成電源短路。因比，為了保證兩個(gè)接觸器不同時(shí)工作，在控制電路中，串接了對(duì)方的常閉輔助觸點(diǎn)RMR和RMF，即把正轉(zhuǎn)接觸器RMF的一個(gè)常閉輔助觸點(diǎn)串接在反轉(zhuǎn)接觸器RMR的線圈電路中，而把反轉(zhuǎn)接觸器的一個(gè)常閉輔助觸點(diǎn)串接在正轉(zhuǎn)接觸器的線圈電路中。這兩個(gè)常閉觸點(diǎn)稱為聯(lián)鎖觸點(diǎn)。這樣一來, 當(dāng)按下正轉(zhuǎn)起動(dòng)按鈕SBF時(shí)，正轉(zhuǎn)接觸器線圈通電，主觸點(diǎn)RMF閉合，電動(dòng)機(jī)正轉(zhuǎn)。與此同時(shí)，聯(lián)鎖觸點(diǎn)斷開了反轉(zhuǎn)接觸器RMR的線圈電路。因此，即使誤按了反轉(zhuǎn)起動(dòng)按鈕SBR，反轉(zhuǎn)接觸器也不能動(dòng)作。在同一時(shí)間里兩個(gè)接觸器只允許有一個(gè)在工作的控制作用稱為互鎖作用或聯(lián)鎖作用。
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廈門仲鑫航自動(dòng)化設(shè)備有限公司
但是在正轉(zhuǎn)過程中要求反轉(zhuǎn)，必須先按停止按鈕SB1，讓聯(lián)鎖觸點(diǎn)RMF閉合后，才能按反轉(zhuǎn)啟動(dòng)按鈕使電動(dòng)機(jī)反轉(zhuǎn)，這樣一來，帶來操作上的不方便。為了解決這個(gè)問題，除了利用接觸器的動(dòng)斷觸點(diǎn)進(jìn)行電氣互鎖外，還可以利用復(fù)合按鈕觸點(diǎn)動(dòng)作的先后順序不同進(jìn)行機(jī)械互鎖。就是這種控制電路的輔助電路(主電路與前相同)。每一個(gè)復(fù)合按鈕都有一副動(dòng)合觸點(diǎn)和一副動(dòng)斷觸點(diǎn)，兩個(gè)啟動(dòng)按鈕的動(dòng)斷觸點(diǎn)分別與對(duì)方的接觸器線圈串聯(lián)。當(dāng)按下正轉(zhuǎn)啟動(dòng)按鈕SBF時(shí)，它的動(dòng)斷觸點(diǎn)先斷開反轉(zhuǎn)接觸器的線圈電路；當(dāng)按下反轉(zhuǎn)啟動(dòng)按鈕SBR時(shí)，它的動(dòng)斷觸點(diǎn)先斷開正轉(zhuǎn)接觸器的線圈電路。因此,采用這種復(fù)合按鈕，在改變電動(dòng)機(jī)轉(zhuǎn)向時(shí)可以不必先按停止鈕，只要按下相應(yīng)的另一起動(dòng)按鈕即可。如果兩種互鎖方式同時(shí)采用，構(gòu)成雙重互鎖，相互制約工作更為可靠。
SUPERCON 250 ampere PIN RECEPTACLE RP250GWT - White, *eBay1986
Power-One HBB5-3/OVP 5VDC 3A Power Supply 8301B
edyne 615-2 10A 250VAC 3-32V Solid State Relay 8002A
Fluke 415B Instruction Manual P/N294025 3311B-3
Parker 1/8" Regular 05R013AC NEW , 95D-1
Papst 6224N/9 6224 N/9 24VDC 18W 750mA Fan rk5
Pack of 2 SRC Devices LSV-5-01-B Vertical Liquid Level Sensors, 7301B-2
Opto 22 5141 Solid State Relay 8002A
SUPERCON 250 ampere PIN RECEPTACLE RP250GBL - Blue, *eBay1987
Fluke 823A Instruction Manual 3311B-3
OMRON C16P Input Unit- 8104C*
Ametek T-500G-TC 10 Grams Force Gage 8301B
Gordos Arkansas GB17225-12 Solid State Relay 120VAC 25A 12VDC 8002A
ILX Lightwave LDT-5910 Temperature Controller Reads E01/E03 Rack4b
Fluke 883A/883AB Instruction Manual 3311B-3
Mean Well RSP-1500-15 Power Supply 15VDC 100A
PS Syracuse SCPA-8B1515S 12VDC 1A Solid State relay 8002A
Fluke 891A/891AR Instruction Manual 3311B-3
Mikro Elektronik 04M054-00 Module*
Opto 22 Z-120-D5 Z120D5 4-16VDC Solid State Relay 8002A
Gordos G280D25 3-32VDC 280VAC 25A Solid State Relay 8002A
Fluke 910A Instruction Manual 3311B-3
Gordos Arkansas GB15410-2 Solid State Relay 240VAC 10A 3-32V 8002A
Deltrol Pneu-Trol Valve #10001-30 C30B, 95D-1
Precision Limit Switch 8LS1-L Micro Switch- 8104B*
edyne 615-2H 10A 250VAC 3-32V Solid State Relay 8002A
Fluke 931 Instruction Manual 3311B-3
Fowler Radius Gauge, No. 52-470-010, 105B-1
Hamlin 7562 3-32V 240V 2.5A Solid State Relay 8002A
Tektronix J6501 FT-CANDLES Module 7803A
PS Syracuse ST-1260-1 1188A50G28 031088 Relay 8002A
Fluke 1120A Instruction Manual P/N487520 3311B-3
Potter & Brumfield ECTIDA74 20VDC Relay 8002A
METCAL STSS-001 Soldering System Power Supply*
Potter & Brumfield ECTIDA24 relay 20VDC 8002A
Fluke 1900A Instruction Manual P/N384875 3311B-3
Tektronix 7A13 337-1160-01 Differential Comparator 7803A
Schneider TSX Quantum 140-XBP-010-00 10-slot Backplane , 96H
Fluke 1912A Instruction Manual P/N467746 3311B-3
4 Pack- GE 87688 HDMI & Coax Wall Plates*
Fluke 1952B Instruction Manual 3311B-3
Gordos Arkansas GA5-2A10 Solid State Relay, 7301B-2
SUPERCON 250 ampere PIN RECEPTACLE RP250GY - Yellow, *eBay1988
HAM Technology 0.0120" 833801-14M49 Series 5382 Circuit board drill bits 50pcs
Fluke 2030 Instruction Manual P/N504035 3311B-3
HAM Technology 5380 SBR w/ring Circuit board bits 0.0210" 11201M12 50pcs
POWER TEN 3100A-4006, 40V, 6A Power Supply*
Wavetek 275 12 MHz Programmable Arbitrary/Function Generator- Rack 11*
HP 355C/355D/355E/355F Attenuator Operating & Service Manual 00355-90051 3112b23
HP 466A AC Amplifier Operating & Service Manual 00466-90002 3112B-2
Lambda LS FM 3 Regulated Power Supply & LS 513 Precision Power Source, 2605A
HP 436A/ 9835-1 Power Meter Programming Note 5952-8237 3112B-2
HP 456A AC Current Probe Operating & Service Manual 456A-901 3112B-2
Tektronix 465 Osiclloscope + DM40 Digital Multimeter DM-40 2-CH Rack8BTM
Fluke 2165A Instruction Manual P/N445437
HP 456A AC Current Probe Operating & Service Manual 00456-90003 3112B-2
Aetna 1008 Precision Bearing, 7301B-2
Fluke 2166A Instruction Manual P/N445445 3311B-3
HP 5316A Universal Counter Operating Manual 05316-90005 3112B-2
Parker Schrader Bellows W68PL-4-2 NEW 7pcs fitting , 95D-1
4 Pack- GE 40659 HDMI Wall Plates*
Fluke 2175A Instructio Manual P/N445478 3311B-3
GE Fanuc IC693PWR321AA 90-30 Power Supply , 98G-2
Oriental Motor 4IK25GK-AA Induction Motor 7704a
Dayton 6A198 115V 1/20HP Permanent Split Capacitor Gearmotor rk16b
Fluke 2190A Instruction Manual P/N489229
Pack of 2 SRC Devices LSV-5-01-A Vertical Liquid Level Sensors, 7101B-2
General Radio GR GenRad 1409-F Standard Capacitor 0.001uF +- 0.05% 8304C
Fluke 2240A Instruction Manual P/N427948 3311B-3
HP 461A/462A Wideband Amplifier Operating & Service Manual 00461-90003 3112B2
Arium ML4400 Logic Analyzer "Vintage"- Rack 11*
HP 855C DC Power Supply Operating & Service Manual 3112B-2
Bruel & Kjaer 2825 Front-End + 7521 + 3028 x 2 + 3107 Rack11c
Racal Instruments 2251A Universal Timer/ Counter Operators Manual CD 980789
EXOR ECT-16-0045 UniOP Touchscreen Controller*
Tektronix DPO4104 Instruction Operating & User's Manual CD
Bruel & Kjaer 2825 Front-End + 7521 + 3028 + 3107 + 2 blanks Rack11c
Elon College Flow Control Valve BC375B 9D90, 95D-1
Meritek Yuhchang 27896-01 YF-P, 4mF, 400VAC-S MPP Capacitor*
HP 135/135A X-Y Recorders Operating & Service Manual 00135-9000 3112B-2
Agilent 11713A Attenuator/ Switch Driver Operating & Service Manual CD
HP 8484A Power Sensor 50 ohm BAD 8304C
HP 9000 Series 200/300 Computers BASIC 4.0 Utilities Library + Loader 3112B-2
Delta Electronics EFB0512HA DC Brushless Fan NEW Pack of 6 DC12V 0.15A
Parvalux Ref Pm 10C.LWS/650367/05C
ESI SP2507 Resistance Comparator- Rack 11*
HP 16500C Logic Analysis System, 7704E
Instruments Division-Model 2000 A/D Converter w/IEEE 488 Option Rack-8 BTM*
Tektronix PG506 PG-506 Calibration Generator Rack3C
Aetna 1008 Precision Bearing, 80C
EXOR TP-01 Touch Panel Controller for repair*
Parvalux Ref Pm 10C.LWS/643363/03C
Starrett No. 256M Gage , 105B-1
Fluke 80TK Thermocouple Module 8304C
Sorensen DCS Series Power Supplies Instruction Manual CD 1063986
Nautilus Hyperdrive DC Motor, HP 3.0; S3472B3539, 000-4871 "NEW"- 8401D*
IMC FE-8 IMCair 115V, 56W, 1.0/0.9A 10" Fan *NIB*, 7703E
Agilent 1000 Series User's Guide CD + More
Tektronix 576 Curve Tracer Instruction Manual CD 070-0905-00
SMC Duplex VG342R-5DZ-06N-X87 Monitored Safety Dump Valve*
IMC FI-8 IMCair 115V, 56W, 1.0/0.9A 10" Fan *NIB*, 7703E
Metcal Smartheat Rework System MX-500P-11 + MX-WS5 + MX-RM3E + Cartridges
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HP 3497A Data Acquisition/Control Unit- Rack 15*
O.C. White Pro-Zoom SZ 4.2 by Prolite Microscope Head NB-1E
Bausch & Lomb StereZoom 4-ST 4ST 0.7-3.0X Microscope Head No eyepieces NB-1E
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Tektronix AM 503B AM5030 AM-503B AM-5030 070-8766-04 3209D-4
emecanique Square D CAD50 CAD50F7 Control Relay 8302A
emecanique TYPE: XPS-AP XPSAP5340, 98G-2
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OC White Pro-Zoom 4.2 Prolite No eyepieces microscope head nb-1e
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Bruel & Kjaer ZM-0053 ZM0053 FM Unit 7703C
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HP 8753D User's Guide & Quick Reference Manual CD
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HP 8257D Installation/ Programming/ Reference/ User's Manual CD
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Tektronix TM503B TM-503B Instructional Manual 070-7808-00 3209D-4
HP 8592D Spectrum Analyzer Calibration Guide 08592-90076 3113E-2
Tektronix SG503 SG-503 Instructional Manual 070-1622-00 3209D-4
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Comair Rotron 039460 Muffin DC MC48BOX 48V 0.18A 8.4W
HP 8561A Spectrum Analyzer Installation Manual 08561-90003 3113E-2
HP 8620A Sweep Oscillator Operating Information 08620-90022 3113E-3
Tektronix TM506 TM-506 070-1786-00 3209D-4
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HP 8605A Communication Sweep Oscillator Service Note 8605A-4 3113E-3
Allen-Bradley 2090-XXNPMF-10S09, Series A Power Cable*
Vicor FlatPAC VI-MU1-CQ-BM 15V 26.7A 400W Power Supply rk2b white bin
BELDEN 10GX33D151000, 1000ft/305M, 4PR. 23AWG (Blue) Spool*
Tektronix SI 5010 SI-5010 Instructional Manual 070-3721-00
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Turck Multi-Safe MS13-11-Ex0-T Amplifier Relay NB-1D
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HP 881A Power Supply Instruction & Operating Manual 3112B-3
NT International D80 Dual Channel Display D80-FXX-P100-A-DC
HP 8656A Signal Generator Operating Manual 08656-90108 3113E-3
HP 405AR Automatic DC Digital Voltmeter Operating & Service Manual 3112B3
Aeroflex Weinschel 20dB Attenuator - N - 25W; model# 34-20-34 7003A-2
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Sumitomo AF3002-A75-U Drive
HP 16510B State/ Timing Card Service Manual 16510-90912 3112C1
LENZE MHEMAXX090-32CIU, 2.1HP Electric Motor*
HP 16510A State/Timing Card Service Manual 16510-90901 3112C1
R15T600-CHC3/AT/U, R15T630-T 15" LCD Touch Monitor*
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AMP 69142 Type OB Mod H, Crimp Tool 8003B*
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Parker 4 C50L0-S Straight Thread Elbow QTY of 20, 83B-1
KEITHLEY TRIAX CABLE 7078-TRX-12
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