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introduction： Programmable controller has strong anti-interference ability，High reliability，Easy to program，High cost performance，It is more and more widely used in the field of industrial control。 Central control unit and lower machinePLCSerial communication is used for data exchange，Usually the distance between1000mInternal selection485Twisted pair communication mode，Optical fiber communication can be used for more common distances，...
2016-03-09 Reading quantity 1543
introduction：catalogue 1Performance characteristics of decelerating motor2Application of decelerating motor3The type of decelerating motor is indicated 1Performance characteristics of decelerating motor The gear motor is designed on the basis of modular combination system, An awful lot...
2016-03-09 Reading quantity 1659
introduction： Everyone knows there is a difference between a relay and a contactor，So whats the difference？What is a contactor？What failures will occur？ relay：For control circuit、Low current，No arc-extinguishing device，It can be operated under the action of electricity or non-electricity。 &n...
2016-03-09 Reading quantity 1594
introduction： On the spot，Frequency converter interference appears more，And relatively serious，Even the control system can not be put into use。The working principle of the frequency converter is destined to produce strong electromagnetic interference。 The frequency converter includes a rectifier circuit and an inverter circuit，The input alternating current passes through a rectifier circuit and a flat wave loop，Convert to DC voltage，Then the DC voltage is transferred through the inverter...
2016-03-09 Reading quantity 1548
introduction： Electric control system Automatic tension system is equipped with a special electric control box，A tension gauge is installed on the panel of the electronic control unit、LEDPilot lamp，The operation of the equipment is reported to the operator in real time in order to understand the operation status of the equipment；There are various transfer switches and control buttons under it；Electric control unit is installed insidePLC、Intermediate relay、The contactor can control the automatic tensioning device。amongPLCIs the core of control，The control system outputs a set of normally open contacts for the control oil pump，There are also tension normal and broken tape output normal...
2016-03-09 Reading quantity 1602
introduction：A solid state relay is an electronic switch with an isolating function，It is composed of semiconductor devices and passive components，The control circuit is realized by optoelectronic and microelectronic technology(Input end)And load circuit(Output end)Between electrical coupling and electrical isolation，There are no moving parts。Solid state relays have the same functions as electromagnetic relays，It is also compatible with logic circuits、Fast switching speed、The output on-resistance is stable、Strong anti-interference ability、Little interference to the outside world、Long life、Outstanding features of high working reliability。...
2016-03-09 Reading quantity 1552
introduction：Structure and characteristics of hydraulic plate bending machine： （1）Hydraulic up drive，The oil cylinders at both ends of the machine are arranged on the slide block，Direct drive sliding operation。 &nb...
2016-03-09 Reading quantity 1559
introduction：A lot of friends might notice that，In machine building、Equipment installation、Heating and air conditioning system、Office automatic equipment and data processing system，They all use servo cables。Servo cable has excellent heat resistance and flame retardant performance，Excellent insulation properties，And the servo cable chemical properties are quite stable，The most important thing is，Servo cable has very good anti-electromagnetic interference performance。
2016-03-09 Reading quantity 336
introduction：1、Type and meaning of undercurrent relay Current relays are developing rapidly，Many current relays can be used for both overcurrent protection and undercurrent protection。Such asJL14Series AC current relay。Its good for communication（50HZvoltage380V）And below；Dc voltage200VFor overcurrent or undercurrent protection in control circuits and below。...
2016-03-09 Reading quantity 1658
introduction：The sustained and rapid development of the national economy and the improvement of the urbanization level，It has created a huge demand space for the development of Chinas food industry，Total food consumption will continue to increase，Commodity consumption is increasingly replacing self-supporting consumption，The proportion of industrialized food gradually increased，And for the development of food industry to provide a huge market space。 In the food industry，Process automation is increasing...
2016-03-09 Reading quantity 1638
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