描述
輔助繼電器相當(dāng)于繼電接觸控制系統(tǒng)中的中間繼電器,通用輔助繼電器跟中間繼電器的作用沒(méi)有什么區(qū)別。但是繼電接觸控制系統(tǒng)沒(méi)有斷電保持功能,它側(cè)重于安全方面的控制,具有欠壓保護(hù)和失壓保護(hù),就是突然斷電,再次來(lái)電時(shí),機(jī)器不會(huì)自動(dòng)起動(dòng),而PLC的斷電保持繼電器,當(dāng)斷電,再次上電時(shí),保持原來(lái)的狀態(tài),這對(duì)于某些行業(yè)非常重要,例如物料必須保持運(yùn)動(dòng)狀態(tài),否則會(huì)凝固,造成堵塞等等這樣的場(chǎng)合。
PLC的輸出線圈也不允許串聯(lián),可以并聯(lián),這根常規(guī)的繼電接觸控制系統(tǒng)一樣的。道理其實(shí)很簡(jiǎn)單,串聯(lián)分壓,線圈到不到額定電壓,一會(huì)吸合,一會(huì)斷不開(kāi),根本無(wú)法正常工作,這是初中物理都講過(guò)的電學(xué)常識(shí)。
總之PLC的功能很豐富,強(qiáng)大,原來(lái)的繼電接觸控制系統(tǒng)無(wú)法實(shí)現(xiàn),或者很困難才能實(shí)現(xiàn)的動(dòng)作,用PLC簡(jiǎn)直是小菜了。
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國(guó)西屋)系列產(chǎn)品》
⑤SIEMENS(西門(mén)子系列產(chǎn)品)》
⑥銷(xiāo)售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門(mén)子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂(lè)):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
REXROTH INDRAMAT DEA4.2 I/O DIGITAL INTERFACE CARD
REXROTH INDRAMAT DEA05.2 PC BOARD
REXROTH INDRAMAT DEF01.1 INCREMENTAL POSITION MODULE
REXROTH INDRAMAT DEP0000116 Item
REXROTH INDRAMAT DG-1604 5000 PPR ENCODER
REXROTH INDRAMAT DIV-03-0100 CABLE ASSEMBLY 3.1 METERS
REXROTH INDRAMAT DIV-04-0502 CABLE ASSEMBLY 3.1 METERS
REXROTH INDRAMAT DKC0.1-040-7-FW SERVO CONTROL
REXROTH INDRAMAT DKC01.1-030-3-FW DRIVE SERVO CONTROLLER DIGITAL AC
REXROTH INDRAMAT DKC01.1-040-7-FW SERVO DRIVE CONTROL
REXROTH INDRAMAT DKC01.3-040-7-FW SERVO DRIVE 3PH 40AMP 700VDC W/PARALLEL INTERFACE
REXROTH INDRAMAT DKC01.3-100-7-FW SERVO DRIVE AC
REXROTH INDRAMAT DKC0132007FW CONTROL
REXROTH INDRAMAT DKC01.3-LK-EAK02 INTERFACE CARD
REXROTH INDRAMAT DKC02.1-040-7-FW SERVO DRIVE 40AMP 700VDC
REXROTH INDRAMAT DKC0230407FM CONTROL
REXROTH INDRAMAT DKC02.3-040-7-FW SERVO DRIVE ECO DRIVE W/SERCOS INTERFACE
REXROTH INDRAMAT DKC0231007FW DRIVE CONTROL
REXROTH INDRAMAT DKC03.1-040-7-FW SERVO CONTROLLER DIGITAL AC
REXROTH INDRAMAT DKC03.3-040-7-FW SERVO DRIVE PROFIBUS DP INTERFACE ECO
REXROTH INDRAMAT DKC0331007FW UNIT
REXROTH INDRAMAT DKC03.3-LK-PBK02 INTERFACE CARD
REXROTH INDRAMAT DKC04.3-LK-ITB01 INTERFACE CARD
REXROTH INDRAMAT DKC0630407FW CONTROLLER
REXROTH INDRAMAT DKC0631007FW DRIVE
REXROTH INDRAMAT DKC06.3-LK-DVN01 INTERFACE CARD
REXROTH INDRAMAT DKC10.3-012-3-MGP-01VRS SERVO DRIVE 12AMP 300VDC MULTI INTERFACE GEN PURPO
REXROTH INDRAMAT DKC1.1-030-3 DIGITAL AC SERVO CONTROLLER
REXROTH INDRAMAT DKC110303FW DRIVE
REXROTH INDRAMAT DKC1.1-040-7-FW SERVO CONTROL AC ECODRIVE
REXROTH INDRAMAT DKC-11-100-7-FW SERVO DRIVE
REXROTH INDRAMAT DKC11.1-040-7-FW DRIVE 700VAC 40AMP
REXROTH INDRAMAT DKC11-3-040-7-FW DRIVE ECO 40AMP
REXROTH INDRAMAT DKC-11-3-100-7-FW SERVO DRIVE
REXROTH INDRAMAT DKR3.1-W100-BE12-01-FW SERVO VECTOR DRIVE W/SERCOS CARD
REXROTH INDRAMAT DKR3.1-W100N-BE12-01 FW SERVO DRIVE 100AMP
REXROTH INDRAMAT DKS01.1-W100A-DL01-00 DIGITAL AC SERVO COMPACT CONTROLLER
REXROTH INDRAMAT DKS011W100ADS010 SERVO
REXROTH INDRAMAT DKS01.2-W100A-DL01 SERVO AMPLIFIER DRIVE
REXROTH INDRAMAT DKS01.2-W100-ADL01 SERVO AMPLIFIER DRIVE
REXROTH INDRAMAT DKS012W100ADL01F DRIVE
REXROTH INDRAMAT DKS-1.1-W100A-DA01-00 SERVO CONTROL DIGITAL 100AMP
REXROTH INDRAMAT DKS-1.1-W100A-DA01-01 SERVO CONTROL DIGITAL 100AMP
REXROTH INDRAMAT DLC1.1-FW DLC CARD
REXROTH INDRAMAT DLF1.1 INTERFACE BOARD
REXROTH INDRAMAT DMD01.1-W082N DRIVE
REXROTH INDRAMAT DMD021W082N DRIVE
REXROTH INDRAMAT DSC1.5-50 SERVO DRIVE
REXROTH INDRAMAT DSC1.6-50-200 SERVO CONTROL
REXROTH INDRAMAT DSC1.7-050-115 SERVO DRIVE
REXROTH INDRAMAT DSC1750 MOTOR CONTROL
REXROTH INDRAMAT DSC1.7-50-115 SERVO CONTROLLER AC
REXROTH INDRAMAT DSC3.1-030-115 SERVO CONTROLLER 115V
REXROTH INDRAMAT DSC3.1-100-115 SERVO CONTROLLER AC
REXROTH INDRAMAT DSC31100115V DRIVE
REXROTH INDRAMAT DSC3.1-150-115 SERVO CONTROLLER
REXROTH INDRAMAT DSC3.1-150-115V SERVO CONTROLLER
REXROTH INDRAMAT DSI-1 COMMUNICATIONS MODULE
REXROTH INDRAMAT DSM02.1-FE MODULE
REXROTH INDRAMAT DSM02.1FW MODULE
REXROTH INDRAMAT DSM02.3-FW MODULE PARAMETER/SOFTWARE
REXROTH INDRAMAT DSM2.1-A11-01.RS PERSONALITY MODULE
REXROTH INDRAMAT DSM2.1-E11-01.RS MODULE
REXROTH INDRAMAT DSM-2.1-FW MODULE
REXROTH INDRAMAT DSM2.1-LNS-0.1RS MODULE
REXROTH INDRAMAT DSM2.1-S11-01.RS MODULE
REXROTH INDRAMAT DSM2.1-SSE-02V07 PERSONALITY MODULE
REXROTH INDRAMAT DSM2.1-SSE-02V08-MS MODULE
REXROTH INDRAMAT DSS01.3 MODULE
REXROTH INDRAMAT DSS01.3-FW MODULE
REXROTH INDRAMAT DSS02.1 INTERFACE MODULE SERCOS
REXROTH INDRAMAT DSS021M CIRCUIT CARD
REXROTH INDRAMAT DSS1 INTERFACE BOARD