CN204349773U - Integrated construction lift special converter - Google Patents
Integrated construction lift special converter Download PDFInfo
- Publication number
- CN204349773U CN204349773U CN201420857448.0U CN201420857448U CN204349773U CN 204349773 U CN204349773 U CN 204349773U CN 201420857448 U CN201420857448 U CN 201420857448U CN 204349773 U CN204349773 U CN 204349773U
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- expansion board
- master control
- control borad
- input
- plc master
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Abstract
The utility model discloses a kind of integrated construction lift special converter, comprising: PLC master control borad, comprise DSP process chip and programmable logic chip, receive multiple signal by I/O expansion board.Host computer, is connected with PLC master control borad by CAN communication mode; I/O expansion board, is connected with PLC master control borad by CAN communication mode, and this I/O expansion board comprises multi-way switching values input/output interface, multicircuit relay output interface; The input/output interface of analog quantity; Code device signal input interface and bus communication interface function; And major loop, be connected by hardwire with PLC master control borad.
Description
Technical field
The utility model relates to frequency converter, particularly relates to a kind of integrated construction lift special converter.
Background technology
In recent years, flourish along with real-estate market, the consumption of building hoist improves year by year, and exploitation building hoist special converter product is well worth doing.The lift special converter that current client uses mainly contains following problem:
1, wiring is many.Frequency converter function and PLC function separately design in traditional building hoist, make the inner cabling of the finished product of the building hoist producer system integration a lot, be unfavorable for automated production, manufacturability is poor.
2, do not have Presentation Function, display needs to configure separately HMI to realize by system integrator, adds fault point and producer's cost.
3, there is no secondary developing platform, use dumb.
Therefore, the research that can improve the building hoist special converter of above demand is very meaningful.
Utility model content
The technical problems to be solved in the utility model is the defect cannot carrying out secondary development for frequency converter in prior art; a kind of frequency converter carrying out secondary development by PLC is provided, realizes the functions such as each operating mode logic control of building hoist, monitoring and protection act.
The utility model solves the technical scheme that its technical problem adopts:
A kind of integrated construction lift special converter is provided, is connected with lift, comprises:
PLC master control borad, comprises DSP process chip and programmable logic chip;
Host computer, is connected with PLC master control borad by CAN communication mode;
I/O expansion board, is connected with PLC master control borad by CAN communication mode, and this I/O expansion board comprises multi-way switching values input/output interface, multicircuit relay output interface, the input/output interface of analog quantity, code device signal input interface and bus communication interface;
Major loop, is connected by hardwire with PLC master control borad.
In special converter described in the utility model, this frequency converter also comprises keyboard, is connected with PLC master control borad, and described keyboard includes LCD keyboard and LED keyboard.
In special converter described in the utility model, described I/O expansion board comprises IO input module, relay output module, analog input and output module, encoder detection module, outside Modbus and power supply module.
In special converter described in the utility model, described I/O expansion board is connected with limit switch by IO input module; This I/O expansion board is also exported by relay and is connected with motor internal contracting brake.
The beneficial effect that the utility model produces is: PLC function i ntegration in building hoist special converter, is decreased the interference of system integration wiring by the utility model; I/O expansion board is designed to selectable unit, provides more selection to client; Frequency converter is utilized to carry the function of keyboard, for client provides the information of system cloud gray model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment integrated construction lift special converter;
Fig. 2 is the utility model example I/O expansion board structured flowchart;
Fig. 3 is the external wiring schematic diagram of the utility model example I O expansion board.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is the frequency converter all-in-one product of a accessible site builtin PLC function for the release of building hoist industry.Its design aim is the AC Drive product of high-performance for building hoist industry user provides industrial applicability strong, high reliability, high performance-price ratio, it adopts modularization, open design concept, can meet the comprehensive demand of building hoist sector application flexibly.
PLC function i ntegration in building hoist special converter, is decreased the interference of system integrator's wiring by this utility model; By programming to I/O expansion board separately, provide the platform of secondary development to client; I/O expansion board is designed to selectable unit, provides more selection to client; Frequency converter is utilized to carry the function of keyboard, for client provides the information of system cloud gray model.
The integrated construction lift special converter of the utility model embodiment, as shown in Figure 1, comprising:
PLC master control borad, it comprises DSP process chip and programmable logic chip, the various signals about lift are received by I/O expansion board, comprise multi-control source signal, limit switch signal and fault-signal etc., by these signals, lift is controlled, comprise band-type brake sequencing control, manual/auto torque magnification, automatic voltage adjustment, zero-speed torque maintenance and voltage ovennodulation;
Host computer, is connected with PLC master control borad by CAN communication mode, for showing the control inerface of lift; Can be debugged frequency converter by this host computer.
I/O expansion board, is connected with PLC master control borad by CAN communication mode, and this I/O expansion board comprises multi-way switching values input/output interface, multicircuit relay output interface; The input/output interface of analog quantity; Code device signal input interface and bus communication interface function; Carry out secondary development by this I/O expansion board, realize each operating mode logic control to lift, monitoring and protection act etc.
This frequency converter also comprises keyboard, is connected with PLC master control borad, and described keyboard includes LCD keyboard and LED keyboard.
When control panel display output current of frequency converter is excessive, then electric current, then carry out checking and getting rid of: the power of motor does not mate with transducer power; Accelerating time is too short; Motor overload or function code P4905.F is set.
When the overvoltage of control panel display DC bus, then flow point crossed by the electric software exceeding producer's optimum configurations of intermediate loop DC, or output current reaches frequency converter hardware designs scope presses through height, the software exceeding producer's optimum configurations is crossed pressure point or is reached frequency converter hardware designs scope.Check and get rid of: static or transient overvoltage occur input side power supply; Deceleration time is too short; Brake unit type selecting is too little; Function code P4906.F is set.
When control panel display is under-voltage, then the DC bus DC loop in major loop is under-voltage, and current busbar voltage lower than the DC bus-bar voltage producer set-point of producer's parameter, or reaches the under-voltage scope of design of hardware.Check and get rid of: input side power supply is too low or main electricity disconnects; Power supply phase shortage; This is under-voltage just to quote in running.
When control panel display input phase failure, then the ripple voltage in DC loop is too high.Check and eliminating: three-phase input supply voltage has one to lose mutually, checks the circuit of each phase of input power; Function code P4901.F is set.
When control panel display translation phase shortage, then the degree of unbalance of three-phase output current is excessive.Check and eliminating: between frequency converter output line and motor input, have one to disconnect mutually, check that frequency converter exports the connection with each phase of motor, or function code P4902.F is set.
When power model overcurrent, then on power amplifier board, testing circuit detection output current of frequency converter is greater than hardware setting threshold values.Check and get rid of: the power of motor does not mate with transducer power; Accelerating time too short or motor overload.
When frequency converter overload, then work/gap period time undesirable or motor power (output) (P0401.M) exceedes the load capacity of frequency converter.
Check and get rid of: the work/gap period time of load exceedes the permissible value of specifying; Motor power (output) (P0401.M) exceedes the load capacity of frequency converter.
The power section of major loop and frequency converter, effect be by the input of power supply by become can regulating frequency export to motor use.Major loop is connected by hardwire with PLC master control borad.
By CAN communication between I/O expansion board and master control borad, decrease wiring, improve the anti-interference of system.
I/O expansion board can be debugged with powerful debugging software DriveInspector separately.
I/O expansion board is selectable unit, does not have the frequency convertor system of I/O expansion board to work alone, the complete compatibility of realization and previous generation frequency converter.
The function of the HMI that the Simple key board carried with frequency converter replaces client originally to use, for client is cost-saving.
In the utility model embodiment, what complete PLC expansion board function is I/O expansion board.I/O expansion board contains multi-way switching values input and output; Multicircuit relay exports; The input and output of analog quantity; Code device signal inputs; Bus communication interface function.
As shown in Figure 2, I/O expansion board is made up of X5, X6, X7, X8, X9, X10, X11, X12.X9 is IO input module; X5-X8 is relay output module; X10 is analog input and output module; X11 is encoder detection module, can detect the speed that motor runs, is controlled and process.X12 is outside Modbus and 24V power supply module, the passage of powering to IO plate for outside and the interface externally carrying out Modbus and communicate.
I/O expansion board is connected by CAN communication with between master control borad.I/O expansion board is by the input signal to outside; the powerful free programing function of PLC is adopted to comprise multiple logic function block; as: with or, non-, delayer, rest-set flip-flop etc., easily realize the functions such as each operating mode logic control of building hoist, monitoring and protection act.
As Fig. 3, I/O expansion board can be connected with limit switch by IO input module mouth; By Modbus communication connection and the equipment connection such as display and flat bed control; Exported by relay and be connected with motor internal contracting brake; The information such as elevator weight can be detected by analog signals input.
The transmission of the multi-control source signal of user, limit switch signal, fault-signal can be accepted, can be expansion and build more complicated personalized logic control function.
I/O expansion board inside adopts ARM embedded OS, can realize optimum configurations, parameter uploads download.By free function block programming realization, to the different parameters that each state assignment is corresponding.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to the utility model claims.
Claims (4)
1. an integrated construction lift special converter, is connected with lift, it is characterized in that, comprising:
PLC master control borad, comprises DSP process chip and programmable logic chip;
Host computer, is connected with PLC master control borad by CAN communication mode;
I/O expansion board, is connected with PLC master control borad by CAN communication mode, and this I/O expansion board comprises multi-way switching values input/output interface, multicircuit relay output interface, the input/output interface of analog quantity, code device signal input interface and bus communication interface;
Major loop, is connected by hardwire with PLC master control borad.
2. special converter according to claim 1, is characterized in that, this frequency converter also comprises keyboard, is connected with PLC master control borad, and described keyboard includes LCD keyboard and LED keyboard.
3. special converter according to claim 1, is characterized in that, described I/O expansion board comprises IO input module, relay output module, analog input and output module, encoder detection module, outside Modbus and power supply module.
4. special converter according to claim 3, is characterized in that, described I/O expansion board is connected with limit switch by IO input module; This I/O expansion board is also exported by relay and is connected with motor internal contracting brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857448.0U CN204349773U (en) | 2014-12-29 | 2014-12-29 | Integrated construction lift special converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857448.0U CN204349773U (en) | 2014-12-29 | 2014-12-29 | Integrated construction lift special converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349773U true CN204349773U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857448.0U Active CN204349773U (en) | 2014-12-29 | 2014-12-29 | Integrated construction lift special converter |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162688A (en) * | 2021-11-10 | 2022-03-11 | 深圳市英威腾电气股份有限公司 | Control method and control device for construction hoist |
-
2014
- 2014-12-29 CN CN201420857448.0U patent/CN204349773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162688A (en) * | 2021-11-10 | 2022-03-11 | 深圳市英威腾电气股份有限公司 | Control method and control device for construction hoist |
| CN114162688B (en) * | 2021-11-10 | 2024-02-20 | 深圳市英威腾电气股份有限公司 | Control method and control device for construction elevator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |