CN111747249A - Electric control system of 220V-to-380V lifting platform - Google Patents
Electric control system of 220V-to-380V lifting platform Download PDFInfo
- Publication number
- CN111747249A CN111747249A CN202010577182.4A CN202010577182A CN111747249A CN 111747249 A CN111747249 A CN 111747249A CN 202010577182 A CN202010577182 A CN 202010577182A CN 111747249 A CN111747249 A CN 111747249A
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- China
- Prior art keywords
- loop
- power supply
- control
- contactor
- frequency converter
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0221—Locks; Latches
Abstract
The invention discloses an electric control system of a 220V-to-380V lifting platform, which comprises an electric control device, wherein the electric control device comprises a transformer, an electric structure and a mechanical structure, the transformer and the electric structure are arranged on the mechanical structure, the electric structure comprises a power supply loop, a power supply, a driving loop, a control loop, a safety loop and an input/output signal, and the power supply loop is connected with the transformer; the power supply loop is electrically connected with the driving loop, the control loop and the input and output signals, the power supply loop supplies power to the driving loop and the control loop, the power supply loop adopts single-phase 220V to 380V, and the other part of the mechanical structure is connected in the driving loop; the control loop is connected in series with the safety loop. The variable-frequency driving scheme is adopted to control the motor, the problem of power supply of an installation site power supply is solved, the hard start phenomenon is eliminated in a multi-section curve operation mode, the operation of the platform can be stopped when faults such as overload overcurrent and the like are fed back, a smooth operation curve is realized at a safe speed, and the comfort and the safety are greatly enhanced.
Description
Technical Field
The invention relates to an electric control system, in particular to an electric control system of a 220V-to-380V lifting and pulling platform.
Background
The current widely used jack platform: the elevator only supports 380V power supply, and in many cases, the installation environment of an elevator site only uses 220V power without three-phase 380V power, and cables of hundreds of meters are required to be pulled for power supply. Secondly, the motor is directly controlled to operate, so that operators can generate strong bumpiness when the lifting platform is started and stopped, and the comfort and the safety are poor.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a plastic raw material processing device for a packaging plant, which directly uses 220V single-phase power supply without using 380V power supply, and uses an electric control device to control a motor to realize the lifting of a platform so as to complete the installation operation.
The invention provides an electric control system of a 220V-to-380V lifting platform, which comprises an electric control device, wherein the electric control device comprises a transformer, an electric structure and a mechanical structure, the transformer and the electric structure are arranged on the mechanical structure, the electric structure comprises a power supply loop, a power supply, a driving loop, a control loop, a safety loop and an input/output signal, and the power supply loop is connected with the transformer;
the power supply loop is electrically connected with the driving loop, the control loop and the input and output signals, the power supply loop supplies power to the driving loop and the control loop, and the power supply loop adopts single-phase 220V to 380V conversion;
one part of the transformer, the power supply and the mechanical structure is connected in a power supply loop, and the other part of the mechanical structure is connected in a driving loop;
the control loop is connected in series with the safety loop. The transformer is used for converting 220V voltage into 380V voltage to be used by an electrical structure, and the mechanical structure is used for driving the puller platform to operate.
Further, the mechanical structure comprises a control cabinet, a main control panel, a frequency converter, a main contactor, a band-type brake contactor, a motor, a switching power supply and a single chip microcomputer, wherein the main control panel is installed on the front end face of the control cabinet, the frequency converter is installed on the inner rear wall of the control cabinet through a mounting frame, and the frequency converter is connected with the main control panel; the main contactor and the band-type brake contactor are arranged in the control cabinet, and the main contactor and the band-type brake contactor are positioned below the frequency converter; the control cabinet, the main control panel, the frequency converter, the main contactor, the band-type brake contactor and the switch power supply are connected in a power supply loop, and the main control panel is provided with a power supply loop, a driving loop, a control loop and a safety loop; the motor is connected with the lifting and pulling platform; the single chip microcomputer is arranged outside the control cabinet and connected with the main control panel, the frequency converter, the main contactor and the band-type brake contactor. The switching power supply is used for controlling the work of the main control panel, the frequency converter, the main contactor and the band-type brake contactor.
Furthermore, mechanical structure still includes the pilot lamp, and the pilot lamp is installed on the preceding terminal surface of switch board, and the pilot lamp is connected with main control panel, converter, main contactor and band-type brake contactor. The pilot lamp is used for indicating the operating condition of main control panel, converter, main contactor and band-type brake contactor.
Further, the transformer is installed inside the control cabinet. The transformer is arranged in the control cabinet, so that the transformer is not only protected by itself, but also connected with a power supply loop.
Further, the electric structure further comprises an indicator light driving circuit, and an indicator light is installed in the indicator light driving circuit. The indicator lamp driving circuit is used for driving the indicator lamp to work.
Further, the electric control system of the 220V to 380V lifting and pulling platform further comprises CAN communication and RS485 communication, and the controller is in communication connection with the frequency converter through RS 485; the driving loop is connected with an external Czochralski platform through CAN communication. The CAN communication and the RS485 communication are connected through only one communication cable, other external wiring is not needed, data communication between the controller and the frequency converter and between the driving loop and the external lifting and pulling platform CAN be completed, and various parameters of a motor driving the lifting and pulling platform to operate CAN be conveniently obtained from the frequency converter.
Furthermore, the electric control system of the 220V to 380V lifting platform further comprises a nixie tube display module, wherein the nixie tube display module comprises a nixie tube, a shift register and a controller, the nixie tube is connected with the shift register, and the shift register is connected with the controller; the controller is connected in a control loop. The controller is used for controlling the shift register to work, and the shift register is used for controlling the nixie tube to display.
Furthermore, a WiFi interface is arranged on the main control panel and connected with the controller. The WiFi interface is used for controlling the controller, and the WiFi interface is convenient to set up and controls the controller by WiFi in the later period.
Furthermore, an I/O interface is led out from the single chip microcomputer. The I/O interfaces are arranged in a plurality of ways, so that the later-stage connection of other equipment is facilitated.
Furthermore, a mechanical lock is arranged on the front end face of the control cabinet. The mechanical lock is used for locking the cabinet door of the control cabinet, and the control cabinet is prevented from being opened randomly to cause damage or danger of the electric control device.
The electric control system for the 220V to 380V lifting platform provided by the invention has the advantages that: the electric control system of the 220V-to-380V lifting and pulling platform adopts a variable frequency driving scheme to control the motor, solves the problem of power supply of an installation site power supply, eliminates a hard start phenomenon in a multi-section curve operation mode, stops the operation of the platform when faults such as overload, overcurrent and the like are fed back, realizes a smooth operation curve at a safe speed, and greatly enhances the comfort and the safety.
Drawings
Fig. 1 is a front view of a control cabinet of an electric control system of a 220V to 380V lifting platform according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of an electric control system of a 220V to 380V lifting platform according to the present invention;
FIG. 3 is a schematic diagram of an indicator driving circuit;
FIG. 4 is a schematic structural diagram of a WiFi interface;
in the figure, 100, a transformer 200, an electrical structure 201, a power circuit 202, a driving circuit 203, a control circuit 204, a safety circuit 300, a mechanical structure 301, a control cabinet 302, a main control board 303, a frequency converter 304, a main contactor 305, a band-type brake contactor 306, a switching power supply 307, an indicator light 400, a nixie tube display module 401, a nixie tube 402 and a shift register.
Detailed Description
As shown in fig. 1, fig. 1 is an electric control system for a 220V to 380V lifting platform disclosed by the invention, 380V power supply is not needed, 220V single-phase power supply is directly used, and an electric control device is used for controlling a motor to realize the lifting of the platform to complete the installation operation.
Referring to fig. 1, the electric control system of a 220V to 380V lifting platform provided by the invention comprises an electric control device, wherein the electric control device comprises a transformer 100, an electric structure 200 and a mechanical structure 300, the transformer 100 and the electric structure 200 are arranged on the mechanical structure 300, the electric structure 200 comprises a power supply loop 201, a power supply, a driving loop 202, a control loop 203, a safety loop 204 and input and output signals, and the power supply loop 201 is connected with the transformer 100;
the power supply loop 201 is electrically connected with the driving loop 202, the control loop 203 and the input and output signals, the power supply loop 201 supplies power to the driving loop 202 and the control loop 203, and the power supply loop 201 adopts a single-phase 220V to 380V conversion mode;
one part of the transformer 100, the power supply and the mechanical structure 300 is connected in the power supply loop 201, and the other part of the mechanical structure 300 is connected in the driving loop 202;
the control loop 203 is connected in series to a safety loop 204. The transformer 100 is turned on, the transformer 100 converts the 220V power supply into 380V, the mechanical structure 300 is driven by the electrical structure 200 to operate, and the mechanical structure 300 drives the jack platform to operate.
Referring to fig. 2, the mechanical structure 300 includes a control cabinet 301, a main control panel 302, a frequency converter 303, a main contactor 304, a band-type brake contactor 305, a motor, a switching power supply 306 and a single chip microcomputer, the main control panel 302 is installed on the front end face of the control cabinet 301, the frequency converter 303 is installed on the inner rear wall of the control cabinet 301 through a mounting frame, and the frequency converter 303 is connected with the main control panel 302; the main contactor 304 and the band-type brake contactor 305 are installed inside the control cabinet 301, and the main contactor 304 and the band-type brake contactor 305 are located below the frequency converter 303; the switching power supply 306 is arranged on the outer surface of the control cabinet 301, the switching power supply 306 is connected with the main control board 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305, the control cabinet 301, the main control board 302, the frequency converter 303, the main contactor 304, the band-type brake contactor 305 and the switching power supply 306 are connected in the power circuit 201, and the power circuit 201, the driving circuit 202, the control circuit 203 and the safety circuit 204 are arranged on the main control board 302; the motor is connected with the lifting and pulling platform; the single chip microcomputer is arranged outside the control cabinet 301 and is connected with the main control panel 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305. When an operator presses an uplink button and a downlink button, the electric control system outputs a direction signal to the frequency converter 303 after detecting that the safety circuit 204 is normal and the frequency converter 303 is faultless, meanwhile, the main contactor 304 is attracted, the internal contracting brake contactor 305 is attracted after delaying, and the motor drives the platform to operate; after the operation is stopped, the control system cancels the direction signal, the band-type brake contactor 305 is released, the main contactor 304 is released after the delay, the motor stops operating, the lifting and pulling platform also stops operating, and the processes can be checked on the single chip microcomputer.
The mechanical structure 300 further comprises an indicator light 307, the indicator light 307 is installed on the front end face of the control cabinet 301, and the indicator light 307 is connected with the main control board 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305. The switching power supply 306 is turned on, and if the indicator light 307 is lighted, it indicates that the main control board 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305 can normally work, and the preparation is made for starting the jack platform.
The transformer 100 is mounted inside a control cabinet 301. The transformer 100 is turned on, the transformer 100 works inside the control cabinet 301, and voltage conversion is performed on the power supply in the power supply loop 201.
Referring to fig. 3, the electrical structure 200 further includes an indicator light driving circuit in which an indicator light 307 is installed. If the main control board 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305 normally operate, the indicator lamp 307 is normally started, and whether the light or the dark of the indicator lamp 307 indicates the working conditions of the main control board 302, the frequency converter 303, the main contactor 304 and the band-type brake contactor 305.
The electric control system of the 220V to 380V lifting and pulling platform further comprises CAN communication and RS485 communication, and the controller is in communication connection with the frequency converter 303 through RS 485; the drive circuit 202 is connected to an external Rakake platform via CAN communication. The CAN communication and the RS485 communication are connected through only one communication cable, other external wiring is not needed, data communication between the controller and the frequency converter 303 and data communication between the driving loop 202 and an external lifting and pulling platform CAN be completed, and various parameters of a motor for driving the lifting and pulling platform to operate CAN be conveniently obtained from the frequency converter 303.
The electric control system of the 220V to 380V lifting platform further comprises a nixie tube display module 400, wherein the nixie tube display module 400 comprises a nixie tube 401, a shift register 402 and a controller, the nixie tube 401 is connected with the shift register 402, and the shift register 402 is connected with the controller; the controller is connected in a control loop 203. The controller sends out an instruction signal to enable the shift register 402 to output a signal and enable the nixie tube 401 to display, and the nixie tube 401 displays relevant information of the operation of the puller platform, so that workers can know and master the information in time.
Referring to fig. 4, the main control board 302 is provided with a WiFi interface, and the WiFi interface is connected to the controller. The WiFi interface is used for controlling the controller, and the WiFi interface is convenient to set up and controls the controller by WiFi in the later period.
And an I/O interface is led out from the single chip microcomputer. The I/O interfaces are arranged in a plurality of ways, so that the later-stage connection of other equipment is facilitated.
And a mechanical lock is arranged on the front end face of the control cabinet. The mechanical lock is used for locking the cabinet door of the control cabinet, and the control cabinet is prevented from being opened randomly to cause damage or danger of the electric control device.
The working process is as follows:
firstly, the mounting rack is firmly welded inside the control cabinet 301, then the transformer 100 and the frequency converter 303 are fixedly installed on the mounting rack, and the distance between the upper edge and the lower edge of the transformer 100 and the lower edge of the frequency converter 303 are larger than 300mm from the top and the bottom of the control cabinet 301.
The transformer 100 is turned on, and the transformer 100 converts the 220V power supply to 380V.
When an operator presses an uplink button and a downlink button, the electric control system outputs a direction signal to the frequency converter 303 after detecting that the safety circuit 204 is normal and the frequency converter 303 is faultless, meanwhile, the main contactor 304 is attracted, the internal contracting brake contactor 305 is attracted after delaying, and the motor drives the tirak platform to operate; after the motor stops, the electric control system cancels the direction signal, the band-type brake contactor 305 is released, the main contactor 304 is released after the delay, the motor stops running, and the lifting jack platform also stops running.
The controller sends out an instruction signal to enable the shift register 402 to output a signal and enable the nixie tube 401 to display, and the nixie tube 401 displays relevant information of the operation of the puller platform, so that workers can know and master the information in time.
In summary, the electric control system for the 220V to 380V lifting jack platform provided by the structure of the invention adopts a variable frequency driving scheme to control the motor, solves the problem of power supply of an installation site power supply, eliminates a hard start phenomenon in a multi-section curve operation mode, stops the operation of the platform when faults such as overload and overcurrent are fed back, realizes a smooth operation curve at a safe speed, and greatly enhances the comfort and the safety.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equivalent replacement or change according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. An electric control system of a 220V-to-380V lifting and pulling platform comprises an electric control device, and is characterized in that the electric control device comprises a transformer (100), an electric structure (200) and a mechanical structure (300), wherein the transformer (100) and the electric structure (200) are arranged on the mechanical structure (300), the electric structure (200) comprises a power supply loop (201), a power supply, a driving loop (202), a control loop (203), a safety loop (204) and input and output signals, and the power supply loop (201) is connected with the transformer (100);
the power supply loop (201) is electrically connected with the drive loop (202), the control loop (203) and the input and output signals, the power supply loop (201) supplies power to the drive loop (202) and the control loop (203), and the power supply loop (201) adopts a single-phase 220V to 380V conversion mode;
one part of the transformer (100), the power supply and the mechanical structure (300) is connected in the power supply loop (201), and the other part of the mechanical structure (300) is connected in the driving loop (202);
the control loop (203) is connected in series with the safety loop (204).
2. The electric control system of a 220V to 380V lifting platform according to claim 1, wherein the mechanical structure (300) comprises a control cabinet (301), a main control board (302), a frequency converter (303), a main contactor (304), a band-type brake contactor (305), a motor, a switching power supply (306) and a single chip microcomputer, the main control board (302) is installed on the front end face of the control cabinet (301), the frequency converter (303) is installed on the inner rear wall of the control cabinet (301) through a mounting frame, and the frequency converter (303) is connected with the main control board (302); the main contactor (304) and the band-type brake contactor (305) are arranged inside the control cabinet (301), and the main contactor (304) and the band-type brake contactor (305) are positioned below the frequency converter (303); the switching power supply (306) is arranged on the outer surface of the control cabinet (301), the switching power supply (306) is connected with the main control board (302), the frequency converter (303), the main contactor (304) and the band-type brake contactor (305), the control cabinet (301), the main control board (302), the frequency converter (303), the main contactor (304), the band-type brake contactor (305) and the switching power supply (306) are connected in the power circuit (201), and the main control board (302) is provided with the power circuit (201), the driving circuit (202), the control circuit (203) and the safety circuit (204); the motor is connected with the lifting and pulling platform; the single chip microcomputer is arranged outside the control cabinet (301), and is connected with the main control panel (302), the frequency converter (303), the main contactor (304) and the band-type brake contactor (305).
3. The electric control system of a 220V to 380V lifting platform according to claim 2, wherein the mechanical structure (300) further comprises an indicator light (307), the indicator light (307) is installed on the front end face of the control cabinet (301), and the indicator light (307) is connected with the main control board (302), the frequency converter (303), the main contactor (304) and the band-type brake contactor (305).
4. The electrical control system of a 220V to 380V jack platform according to claim 2, wherein the transformer (100) is mounted inside a control cabinet (301).
5. The electrical control system of a 220V to 380V jack platform of claim 3, wherein: the electrical structure (200) further includes an indicator light drive circuit having an indicator light (307) mounted therein.
6. The electrical control system of a 220V to 380V jack platform of claim 2, wherein: the controller is in communication connection with the frequency converter (303) through RS 485; the drive circuit (202) is connected with an external Czochralski platform through CAN communication.
7. The electrical control system of a 220V to 380V jack platform of claim 1, wherein: the digital tube display device is characterized by further comprising a digital tube display module (400), wherein the digital tube display module (400) comprises a digital tube (401), a shift register (402) and a controller, the digital tube (401) is connected with the shift register (402), and the shift register (402) is connected with the controller; the controller is connected in a control loop (203).
8. The electrical control system of a 220V to 380V jack platform of claim 7, wherein: the main control panel (302) is provided with a WiFi interface, and the WiFi interface is connected with the controller.
9. The electric control system of a 220V to 380V tirak platform as claimed in claim 1, wherein said single chip microcomputer has an I/O interface separately routed out.
10. The electric control system of a 220V to 380V jack platform according to claim 1, wherein a mechanical lock is provided on the front face of the control cabinet (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577182.4A CN111747249A (en) | 2020-06-23 | 2020-06-23 | Electric control system of 220V-to-380V lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577182.4A CN111747249A (en) | 2020-06-23 | 2020-06-23 | Electric control system of 220V-to-380V lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111747249A true CN111747249A (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010577182.4A Pending CN111747249A (en) | 2020-06-23 | 2020-06-23 | Electric control system of 220V-to-380V lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111747249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112830356A (en) * | 2021-01-22 | 2021-05-25 | 南京科远驱动技术有限公司 | Control system for operation and fault state indication of all-in-one machine of construction elevator |
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| CN103693518A (en) * | 2013-12-10 | 2014-04-02 | 深圳市正弦电气股份有限公司 | Elevator control cabinet |
| CN204150825U (en) * | 2014-08-19 | 2015-02-11 | 安徽多杰电气有限公司 | A kind of building hoist frequency-conversion control cabinet |
| CN205222323U (en) * | 2015-12-21 | 2016-05-11 | 南京科远驱动技术有限公司 | A worker's frequency conversion all -in -one for construction elevator |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039046Y (en) * | 2007-05-17 | 2008-03-19 | 北京合康亿盛科技有限公司 | High-voltage frequency conversion start cabinet |
| CN201605069U (en) * | 2010-01-22 | 2010-10-13 | 西子奥的斯电梯有限公司 | Drawer-type elevator controller |
| CN102674120A (en) * | 2012-05-25 | 2012-09-19 | 巨人通力电梯有限公司 | Domestic machine-room-less lift driving cabinet |
| CN103693518A (en) * | 2013-12-10 | 2014-04-02 | 深圳市正弦电气股份有限公司 | Elevator control cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112830356A (en) * | 2021-01-22 | 2021-05-25 | 南京科远驱动技术有限公司 | Control system for operation and fault state indication of all-in-one machine of construction elevator |
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Application publication date: 20201009 |
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