CN2539349Y - Motor management controller - Google Patents

Abstract

The utility model relates to a motor controller for protecting, measuring, managing and controlling a plurality of types of low tension motor, in particular to an integrated microcomputer measuring controlling device, comprising a casing, on which a panel, an input wiring terminal and an output wiring terminal are arranged; a display, an operating keyboard and an indicator are arranged on the panel; an electronic control circuit board, an electronic control circuit and a plurality of electronic elements are arranged inside the casing. The utility model is characterized in that the electronic control circuit comprises a central processing unit circuit, a display operation control circuit, a power supply, an input and output control circuit and an alternating current and voltage transmitting circuit; wherein the central processing unit circuit comprises a plurality of signal amplifying modules IC1, IC2, IC3, IC4, IC5, IC6, IC40, IC41and IC42, an analogue signal transforming module IC6, a calendar clock module IC7, a CPU module IC8, a plurality of photoelectric signal blocking modules IC9 and IC10, a plurality of analog value output module IC11, IC45 and IC46 and a plurality of memory modules IC12 and IC13.

Description

Motor management controller

Technical field

What the utility model motor management controller related to is a kind of protection, measurement, management and control device that is applicable to all low-tension motors (400VAC and following), is the integrated microcomputer measure and control device.

Background technology

Motor is in our life; particularly industrial circle uses extensive especially; be the normally used power set that electric energy are converted into kinetic energy; therefore, this device is controlled (open, stop, speed governing, forward and backward), measured (electric current, voltage, available power, useless power, power factor (PF), electric degree etc.), protection (short circuit, phase shortage, overload, stall, earth fault, three-phase imbalance, overvoltage, low-voltage etc.) and manage (demonstration, warning, information preservation, accident analysis etc.) is the problem that people pay close attention to always.Therefore, relevant device also prolongs life thereupon.As air switch, circuit breaker, thermal relay, and associated electrical and microcomputer type overload protection equipment all are used for protecting motor; What be used to measure has transmitters such as voltage, electric current, power, electric degree, and AC signal is become direct current signal, delivers to microcomputer (or PLC) sample devices then, or delivers to instrument and show, certainly, the microcomputer measuring equipment that exchanges directly by sampling is also arranged at present; Being used for control and management, generally is to adopt PLC and industrial computer that motor is controlled and information management.This shows,, need some equipment and element for realizing to motor protection, measurement, control and a management, exist system loaded down with trivial details, need equipment and element is many, poor reliability, investment height, fault is many, precision is low, problems such as complexity are checked in installation.

Summary of the invention

The utility model provides a kind of motor management controller at above-mentioned weak point; adopt the system controlled by computer principle; work and operation characteristic according to motor; the all functions such as protection, measurement, control and management of motor are integrated on the same device, than general control appliance more comprehensively, more accurate, more reliable, more convenient flexibly, more advanced.

Motor management controller takes following scheme to realize: the motor management controller structure has casing, panel, input and output binding post, RS232 serial communication interface are arranged on the casing, LCD, operation keyboard, indicator light are arranged on the panel; Electronic control board, electronic control circuit and electronic devices and components are housed in the cabinet.Electronic control circuit mainly is made of central control unit circuit, display operation control circuit, power supply and I/O control circuit, alternating current and voltage transmission circuit.The central control unit circuit comprises signal amplification module IC1, IC2, IC3, IC4, IC5, IC40, IC41, IC42, analog signal conversion module I C6, calendar clock module I C7, CPU module I C8, photosignal isolation module IC9, IC10, serial communication driver module IC43, IC44, analog signals output module IC11, IC45, IC46, memory module IC12, IC13.The display operation control circuit comprises I/O input/output module IC15, and it is used to drive LCD LCD and light-emitting diode.Power supply and I/O control circuit comprise I/O input/output module IC14, photosignal isolation module IC16, IC17 to IC39.Alternating current and voltage transmission circuit comprise A phase, B phase, C phase and ground connection CT, voltage PT.Three-phase current A phase in the electronic control circuit, the B phase, C phase transmitter and earth current speed changer, the voltage speed changer directly links to each other with analog signal conversion module I C6 respectively, also can pass through direct current signal amplification module IC1 respectively, IC2, IC3, IC4, IC5, IC40, IC41, IC42 links to each other with analog signal conversion module I C6, analog signal conversion module I C6 links to each other with CPU module I C8 by data/address bus, calendar clock module I C7 links to each other with CPU module I C8 by data wire, IC8 links to each other with analog signals output module IC11 by data/address bus, analog signals output module IC11 amplifies chip IC 45 by analog quantity output, IC46 handles back output, the dual serial port of IC8 is by photosignal isolation module IC9, IC10 delivers to chip for driving IC43, IC44, IC8 links to each other with input/output module IC14 by data/address bus, and IC14 output is isolated back output by photoelectric isolation module IC33～IC39 photoelectricity.The switching value input is isolated the back by photoelectric isolation module IC16～IC32 photoelectricity and is linked to each other with input/output module IC14.CPU module I C8 links to each other with input/output module IC15 by data/address bus, and IC15 links to each other with LCD by data wire, and operation keyboard links to each other with IC15 by data wire, and IC15 links to each other with several status indicator lamps LD by data wire.

The operation principle of motor management controller: the CT (alternating current transmitter), the PT (Alternative Voltage Converter) that A, B, C three-phase current, earth current and the voltage of motor are inserted this controller, after the amplification of signal through amplification modules such as IC1, IC2, IC3, IC4, IC5, become data volume through the IC6 sampling, send IC8 calculation process; The status switch amount of motor is sent IC8 calculation process by the IC14 detection after photoelectricity is isolated simultaneously; Also have the standard input port of other parameter signals,, send IC8 calculation process through the IC6 sampling by 4-20MA.After the IC8 calculation process, the instruction that must make new advances, by IC14 and IC11 send the control motor startup, stop, just changeing, counter-rotating, speed governing etc.Can deliver to host computer or miscellaneous equipment through IC43, IC44 by the isolation of IC9, IC10 by the data after the IC8 processing, or accept instruction from host computer and other equipment; Data after handling simultaneously can show by IC15 liquor charging crystal display and LD, also can accept keyboard instruction by IC15.

The advantage of motor management controller: because motor management controller is to adopt the system controlled by computer principle, work and operation characteristic according to motor, the all functions such as protection, measurement, control and management of motor are integrated on the same device, than general control appliance more comprehensively, more accurate, more reliable, more convenient flexibly, more advanced; In addition; motor management controller is the also integrated input of several switching value, output, pulsed quantity input, analog quantity input and output; all these I/O all provide to the user and are used for process control, and control purposes by programmable way implementation procedure interlocking, warning, tripping operation (shutdown), adjusting etc. easily and flexibly.Also can become the PID regulating loop, process is realized loop adjusting control by configuration able to programme; Control mode can be divided into on-the-spot and middle control, when being set at on-the-spot mode, can pass through keyboard, LCD and status indicator lamp operation monitoring, and order such as can be directly opens, stops on guidance panel.As when being made as center control, any one interface of two serial ports (RS232, a RS485) that can be by this device is connected to host computer or other device by communication cable, sends out a control signal by host computer or other device.

Description of drawings

The utility model is described in further detail below with reference to accompanying drawing.

Fig. 1 is the motor management controller front view.

Fig. 2 is the motor management controller rearview.

Fig. 3 is a motor management controller electronic control circuit schematic diagram.

Embodiment

With reference to accompanying drawing 1,2,3, the motor management controller structure has casing 1, panel 2, input and output binding post 6, RS232 serial communication interface 7 are arranged on the casing, LCD LCD 3, operation keyboard 4, indicator light 5 are arranged on the panel 2, electronic control board, electronic control circuit and electronic devices and components are housed in the casing 1.Electronic control circuit mainly is made of central control unit circuit, display operation control circuit, power supply and I/O control circuit, alternating current and voltage transmission circuit.The central control unit circuit comprises signal amplification module IC1, IC2, IC3, IC4, IC5, IC40, IC41, IC42, analog signal conversion module I C6, calendar clock module I C7, CPU module I C8, photosignal isolation module IC9, IC10, serial communication driver module IC43, IC44, analog signals output module IC1 1, IC45, IC46, memory module IC12, IC13.The display operation control circuit board comprises I/O input/output module IC15, and it is used to drive LCD LCD and light-emitting diode.Power supply and I/O control circuit comprise I/O input/output module IC14, photosignal isolation module IC16～IC39.Alternating current and voltage transmission circuit comprise A phase, B phase, C phase and ground connection CT, voltage PT.Three-phase current A phase in the electronic control circuit, the B phase, C phase transmitter and earth current speed changer, voltage transmitter directly links to each other with analog signal conversion module I C6 respectively, also can pass through direct current signal amplification module IC1 respectively, IC2, IC3, IC4, IC5, IC40, IC41, IC42 links to each other with analog signal conversion module I C6, analog signal conversion module I C6 links to each other with CPU module I C8 by data/address bus, calendar clock module I C7 links to each other with CPU module I C8 by data wire, IC8 links to each other with analog signals output module IC11 by data/address bus, analog signals output module IC11 amplifies chip IC 45 by analog quantity output, IC46 handles back output, the dual serial port of IC8 is by photosignal isolation module IC9, IC10 delivers to driver module IC43, IC44, IC8 links to each other with input/output module IC14 by data/address bus, and IC14 output is isolated back output by photoelectric isolation module IC33～IC39 photoelectricity.The switching value input is isolated the back by photoelectric isolation module IC16～IC32 photoelectricity and is linked to each other with input/output module IC14.CPU module I C8 links to each other with input/output module IC15 by data/address bus, and IC15 links to each other with LCD by data wire, and operation keyboard links to each other with IC15 by data wire, and IC15 links to each other with several status indicator lamps LD by data wire.

Alternating current by power-supply filter after rectification, produce direct current 5V, ± 12V, 24V power supply, use for CPU and device each several part.

With reference to accompanying drawing 3, signal amplification module IC1 in the motor management controller electronic control circuit, IC2, IC3, IC4, IC5 adopts LM258 high-performance amplifier module etc., analog signal conversion module I C6 adopts AD574 high accuracy modular converter, calendar clock module I C7 adopts the DS1302 module, CPU module I C8 adopts Gao Shengneng, the W77E58 of dominant frequency 40MHZ, photosignal isolation module IC9, IC10 adopts the TLP521 module, analog signals output module IC11 can adopt the MAX512 module, memory module IC12 adopts 2416 modules, IC13 adopts 62256 modules, I/O input/output module IC14 adopts 8255 modules, I/O input/output module IC15 adopts 8279 modules, photoelectric isolation module IC16～IC32, IC33～IC39 can adopt the TLP521 module, analog quantity input amplification module IC40～IC42 adopts the LM158 module, driver module IC43 adopts the MAX487 module, driver module IC44 adopts the MAX232 module, analog quantity output amplification module IC45, IC46 adopts the LM158 module.

Claims (2)

1, a kind of motor management controller, has casing, panel, input and output binding post are arranged on the casing, display, operation keyboard, indicator light are arranged on the panel, electronic control board, electronic control circuit and electronic devices and components are housed in the cabinet, it is characterized in that electronic control circuit is made of central control unit circuit, display operation control circuit, power supply and input/output control circuit, alternating current and voltage transmission circuit; The central control unit circuit comprises signal amplification module IC1, IC2, IC3, IC4, IC5, IC40, IC41, IC42, analog signal conversion module I C6, calendar clock module I C7, CPU module I C8, photosignal isolation module IC9, IC10, serial communication driver module IC43, IC44, analog signals output module IC11, IC45, IC46, memory module IC12, IC13, the display operation control circuit board comprises I/O input/output module IC15, be used to drive LCD LCD and light-emitting diode, power supply and I/O control circuit comprise I/O input/output module IC14, photosignal isolation module IC16～IC39, alternating current and voltage transmission circuit comprise the A phase, the B phase, C phase and ground connection CT, voltage PT; Three-phase current A phase in the electronic control circuit, the B phase, C phase transmitter and earth current speed changer, voltage transmitter directly links to each other with analog signal conversion module I C6 respectively, also can pass through direct current signal amplification module IC1 respectively, IC2, IC3, IC4, IC5, IC40, IC41, IC42 links to each other with analog signal conversion module I C6, analog signal conversion module I C6 links to each other with CPU module I C8 by data/address bus, calendar clock module I C7 links to each other with CPU module I C8 by data wire, IC8 links to each other with analog signals output module IC11 by data/address bus, analog signals output module IC11 amplifies chip IC 45 by analog quantity output, IC46 handles back output, the dual serial port of IC8 is by photosignal isolation module IC9, IC10 delivers to driver module IC43, IC44, IC8 links to each other with input/output module IC14 by data/address bus, IC14 output is isolated back output by photoelectric isolation module IC33～IC39 photoelectricity, the switching value input is isolated the back by photoelectric isolation module IC16～IC32 photoelectricity and is linked to each other with input/output module IC14, CPU module I C8 links to each other with input/output module IC15 by data/address bus, IC15 links to each other with LCD by data wire, operation keyboard links to each other with IC15 by data wire, and IC15 links to each other with several status indicator lamps LD by data wire.

2, motor management controller according to claim 1 is characterized in that being equipped with on the casing RS232 serial communication interface.

Images