CN114966176A - Elevator motor brake voltage monitoring system, monitoring method, medium and application - Google Patents
Elevator motor brake voltage monitoring system, monitoring method, medium and application Download PDFInfo
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- CN114966176A CN114966176A CN202210676118.0A CN202210676118A CN114966176A CN 114966176 A CN114966176 A CN 114966176A CN 202210676118 A CN202210676118 A CN 202210676118A CN 114966176 A CN114966176 A CN 114966176A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of brake system control, and discloses a system, a method, a medium and application for monitoring brake voltage of a motor of an elevator. Leading out a rectified voltage signal wire from the output end of the brake rectifier, connecting the rectified voltage signal wire into a direct current instrument, and displaying the current output voltage value of the brake rectifier; setting a range value through parameters inside the direct current instrument; and recording the voltage value, performing trend statistics on the output voltage of the brake rectifier, and judging whether the brake rectifier has a deterioration tendency. The brake voltage visualization of the cross-shaped elevator can promote megahour management or bring daily spot check confirmation items into consideration, and the brake voltage value is quantized. The invention sets the output voltage range of DC150v-180v, and the alarm output of the touch screen can be realized when the output voltage is lower or higher than the range value, thereby realizing automation. The performance deterioration of the rectifier is easier to grasp, and the alarm in the abnormal voltage can be used for simple judgment, so that the operability is improved.
Description
Technical Field
The invention belongs to the technical field of brake system control, and particularly relates to a system, a method, a medium and application for monitoring brake voltage of an elevator motor.
Background
In the prior art, whether the output voltage range of the brake rectifier is normal or not can be judged, and the output voltage value of the rectifier can be periodically recorded by point inspection to form megahour management.
When the fault occurs, whether the rectifier has output voltage or not can be judged, whether the electric control loop has the fault or the mechanical part has the fault, and the MTTR is shortened. A signal of rectifier output voltage abnormity is added, when the rectifier is abnormal, rectifier alarm information can be displayed on a human-computer interface, and the abnormity handling operability is improved. The effective range value of the output voltage of the rectifier is set, and the human-computer interface alarm information is lower than the effective value (when the rectifier is degraded), so that the protection is prevented.
Moreover, the conveying equipment of the coating workshop uses more equipment with a brake motor, the failure frequency of a motor brake system is more, the conveying equipment basically stops for a long time, the movable influence is large when the failure occurs, a waste vehicle and a return vehicle can be caused when the equipment fails in the range of the drying furnace, when the failure is handled, the failure is not easy to distinguish between the electric control loop of the brake system and the failure of a mechanical part, the handling process is inconvenient, the regular spot inspection and PM project are carried out on the mechanical part of the brake, but the electric control loop of the brake, particularly a rectifier, has no spot inspection project all the time, so the failure controllable state is not enough.
Through the above analysis, the problems and defects of the prior art are as follows: (1) the display instrument has voltage pulsation of a few tenths of a volt in a static state, and a signal wire is easily interfered by a power wire and inaccurate in detection. (2) In the moment of starting and stopping the motor, due to the existence of reverse voltage, the direct current voltage display has negative value and is displayed instantly, error signal error output is easy to occur, and false alarm is caused.
Disclosure of Invention
In order to overcome the problems in the related art, the disclosed embodiments of the present invention provide a system, a method, a medium and an application for monitoring a brake voltage of an elevator motor. In particular to a method for monitoring the brake voltage of a motor of a cross elevator.
The technical scheme is as follows: a method for monitoring the braking voltage of an elevator motor comprises the following steps:
leading out a rectified voltage signal wire from the output end of the brake rectifier, connecting the voltage signal wire into a direct current instrument, and displaying a current output voltage value;
setting a range value through parameters in the direct current instrument;
recording the voltage value, performing trend statistics on the output voltage of the brake rectifier, and judging whether the brake rectifier has a degradation tendency; the judging method comprises the following steps: when the output voltage is lower than 150V, it is determined that the rectifier performance is deteriorated.
In an embodiment of the present invention, the step of setting the range value by the parameter inside the dc meter includes the following steps:
selecting a meter: DC180V that determines the rectifier output voltage; determining the working effective voltage range of the rectifier to be 150-180V according to the field working condition; selecting a meter with the withstand voltage grade exceeding the maximum output voltage +/-199V; selecting a functional module with event contact output in the series of instruments;
adjusting parameters: setting the type of the input signal, including: inputting type A direct current voltage +/-199.99V; setting a voltage comparison output mode; setting the position of a decimal point; selecting a voltage sampling state; setting a voltage range value of HH 180V, H: 150V; the current noise voltage is set to 0V.
In the second step of the present invention, after setting the range value according to the parameter inside the dc meter, the following steps are further performed:
designing the wiring of the whole signal line;
and setting software parameters of a program and a human-computer interface.
In an embodiment of the present invention, the setting of the software parameters of the program and the human-computer interface includes the following steps: when the output voltage of the rectifier exceeds a set range, an instrument event output contact is ON, the ON/OFF action of a DC24V relay is controlled through external connection, and a 24V relay contact outputs a signal to the PLC; the PLC needs to carry out circuit design editing according to working conditions, when the elevator acts, if the output voltage of the rectifier exceeds the range within 0.5 second, the PLC outputs alarm information, and the alarm information is displayed in a human-computer interface and is transmitted through a voice alarm system.
In one embodiment of the invention, when the output voltage of the rectifier exceeds a set range, an alarm signal is output, the brake rectification voltage is abnormal, and the fault reason is judged; the judging method comprises the following steps: the normal brake voltage indicates that the power supply and the rectification output of the brake loop have no problem, and the brake voltage is directly judged to be a motor driving fault or a mechanical part fault.
In an embodiment of the invention, the step three is to feed back whether the brake rectifier has the information of the deterioration tendency through a human-computer interface, and to perform visual display.
Another object of the present invention is to provide an elevator motor brake voltage monitoring system comprising:
the voltage signal line of the output end of the brake rectifier is connected into the direct current instrument to display the output voltage value of the current rectifier;
the rectification voltage abnormity judgment module is used for outputting an alarm signal for the signal exceeding the voltage set value range of the direct current instrument and judging the fault reason; meanwhile, the trend statistics is carried out on the output voltage of the brake rectifier by periodically recording the voltage value, and whether the brake rectifier has a deterioration tendency is judged;
and the human-computer interface is used for feeding back and judging whether the brake rectifier has degradation tendency information or not and carrying out visual display.
And a voltage parameter range setting module is further integrated in the direct current instrument and used for setting the range value of the output parameter of the direct current instrument.
It is another object of the present invention to provide a program storage medium for receiving user input, the stored computer program causing an electronic device to execute the elevator motor braking voltage monitoring method.
Another object of the present invention is to provide a painting shop conveying facility equipped with the elevator motor brake voltage monitoring system.
By combining all the technical schemes, the invention has the advantages and positive effects that:
the method for monitoring the brake voltage of the elevator motor provided by the embodiment of the invention is used for selecting a direct current instrument, setting and adjusting internal parameters, designing the wiring of an integral signal line and setting software parameters of a program and a human-computer interface. The following positive effects are obtained: the brake voltage visualization of the cross-shaped elevator can promote megahour management or bring daily spot check confirmation items into consideration, and the brake voltage value is quantized.
According to the invention, the output voltage range of DC150V-180V is set, and when the output voltage is lower or higher than the range value, the touch screen can output an alarm (the voltage of the star rectifier is abnormal), so that automation is realized.
The performance deterioration of the rectifier is easier to grasp, and the alarm in the abnormal voltage can be used for simple judgment, so that the operability is improved. When the brake voltage is abnormal and an alarm is given, the brake loop power supply or the rectifier fault is indicated, the output power supply of the rectifier can be directly measured, if the rectifier is normally and directly replaced, if the rectifier is abnormal, the rectifier power supply loop is investigated, and the time wasted for judging whether the motor fault or the mechanical reason fault is caused is saved
When the fault occurs, the fault point can be judged more simply through the voltage value state of the rectifier, the disposal time is shortened, and the MTTR is improved. Before the detection system is adopted, if a motor overload type fault is met, 3-5 times of manual operation tests are needed to judge the fault. Secondly, due to the influence of the structure of the equipment and the position of the power distribution circuit, certain operation danger exists in the process of judging the fault of the electric appliance circuit or the mechanical fault, and meanwhile, the required time is generally about 20 minutes, so that the field production is greatly influenced. After the detection system is introduced, when the problem occurs, the fault range can be easily judged only by the existence of rectifier alarm information, and the investigation time is shortened.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart of a method for monitoring brake voltage of an elevator motor according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of an elevator motor braking voltage monitoring system provided by an embodiment of the present invention;
fig. 3 is a diagram of a brake voltage monitoring system of a motor of an elevator according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an elevator motor brake voltage monitoring system provided by an embodiment of the present invention;
FIG. 5 shows the alarm information content fed back by the three internal relay signals through the human-machine interface according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of a direct determination of a motor drive fault or a mechanical part fault provided by an embodiment of the present invention;
FIG. 7 is a circuit diagram of an elevator motor braking voltage monitoring system provided by an embodiment of the present invention;
FIG. 8 is an interface diagram of a warning message display on the human-computer interface with abnormal voltage according to the embodiment of the present invention;
in the figure: fig. 8(a) is a 16# elevator warning information display interface diagram; fig. 8(b) is a 18# elevator warning information display interface diagram; fig. 8(c) is a 20# elevator warning information display interface diagram.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The method for monitoring the brake voltage of the elevator motor provided by the embodiment of the invention is used for selecting the direct current instrument, setting and adjusting internal parameters, designing the wiring of the whole signal line and setting software parameters of a program and a human-computer interface.
As shown in fig. 1, the method for monitoring braking voltage of an elevator motor according to an embodiment of the present invention includes:
and S101, leading out a rectified voltage signal wire from the output end of the brake rectifier, connecting the rectified voltage signal wire into an instrument, and displaying the current output voltage value of the brake rectifier.
S102, setting a range value through parameters in the instrument, outputting an alarm signal after the range value is exceeded, indicating that the rectified voltage is abnormal, and judging the fault reason. The judging method comprises the following steps: the normal braking voltage indicates that there is no problem in the power supply and the rectified output of the braking circuit, and it can be directly determined as a motor driving fault or a mechanical part fault, as shown in fig. 6, the line connected to BK indicates the braking circuit, and the black part of the line connected to QL indicates the motor driving circuit.
And S103, meanwhile, periodically recording the voltage value to perform trend statistics on the output voltage of the brake rectifier, and judging whether the brake rectifier has a deterioration trend. And the information is fed back through a human-computer interface to be displayed visually. The judging method comprises the following steps: when the output voltage drops below 150V, it is determined that the rectifier performance is degraded.
As shown in fig. 2, the present invention provides an elevator motor brake voltage monitoring system including:
a voltage signal line of an output end of the brake rectifier 1 is connected into the direct current instrument 2, and the output voltage value of the current rectifier is displayed;
the rectifying voltage abnormity judgment module 3 is used for outputting an alarm signal for a signal exceeding the voltage set value range of the direct current instrument 2 and judging the fault reason; meanwhile, the trend statistics is carried out on the output voltage of the brake rectifier 1 by periodically recording the voltage value, and whether the brake rectifier 1 has a deterioration trend is judged;
and the human-computer interface 4 is used for feeding back and judging whether the brake rectifier 1 has degradation tendency information or not and performing visual display.
And a voltage parameter range setting module 2-1 is further integrated in the direct current instrument 2 and used for setting the range value of the output parameter of the direct current instrument.
Fig. 3 is a physical structure of the elevator motor brake voltage monitoring system according to the embodiment of the present invention.
The setting of the software parameters of the program and the human-computer interface comprises the following steps: when the output voltage of the rectifier exceeds a set range, the meter event output contact is ON, the ON/OFF action of a DC24V relay is controlled through the external connection, and a 24V relay contact outputs a signal to the PLC. The PLC needs to carry out circuit design editing according to working conditions, when the elevator acts (the motor acts), if the output voltage of the rectifier exceeds the range within 0.5 second, the PLC outputs alarm information (a short space PC10 series CPU), and the alarm information is displayed in a human-computer interface and is transmitted to maintenance personnel through a voice alarm system.
The technical solution of the present invention is further described with reference to the following specific examples.
Examples
The invention provides the selection of the direct current instrument and the setting adjustment of the internal parameters; the method specifically comprises the following steps:
selection requirements of the instrument: determining this rectifier output voltage is DC180V (model 05F-4FB 2); determining the working effective voltage range (150V-180V) of the rectifier according to the field working condition; selecting a meter (ohm dragon K3HB-V series) +/-199V capable of withstanding voltage grade exceeding the maximum output voltage; and selecting a functional module with an event contact output in the series of meters.
Adjustment requirements of parameters: setting the type of the input signal (input type A direct current voltage +/-199.99V); setting a voltage comparison output mode (area output type); setting decimal point positions (two digits after displaying decimal points); selecting a voltage sampling state (continuous normal state); setting voltage range values (HH:180V, H: 150V); to eliminate the noise voltage display, the current noise voltage is set to 0V (force 0 bit).
In a preferred embodiment, the setting of the software parameters of the program and the human-machine interface comprises:
when the output voltage of the rectifier exceeds a set range, the meter event output contact is turned ON, the DC24V relay is controlled to be turned ON/OFF through the external connection, and a 24V relay contact outputs a signal to the PLC. The PLC needs to carry out circuit design editing according to working conditions, when the elevator acts (the motor acts), if the output voltage of the rectifier exceeds the range within 0.5 second, the PLC outputs alarm information (a short space PC10 series CPU), and the alarm information is displayed in a human-computer interface and is transmitted to maintenance personnel through a voice alarm system. Fig. 4 illustrates the principle of the braking voltage monitoring system for the elevator motor according to an embodiment of the present invention.
Fig. 5 shows that the program according to the embodiment of the present invention sends an instruction to the control room through the FL-NET network to feed back an alarm voice message;
the abnormal signal X1cc of the rectifier is the B contact under the normal state, the state is OFF in the loop, when the elevator ascends or descends, if the rectifier does not reach the set value range (150 plus 180V) within 0.5 second (T002 timer), the timer is ON, and the alarm signal GM0012 is output (see figure 5);
FIG. 5 shows that the abnormal signal X1CD of the rectifier in normal state provided by the embodiment of the present invention is the B contact, the loop is OFF state, when the elevator ascends or descends, if the rectifier does not reach the set value range (150 and 180V) within 0.5 seconds (T003 timer), the timer is ON, and the alarm signal GM0013 (see FIG. 5) is output;
the abnormal signal X1CE of the rectifier is the B contact under normal state, the state is OFF in the loop, when the elevator ascends or descends, if the rectifier does not reach the set value range (150 plus 180V) within 0.5 second (T005 timer), the timer is ON, and the alarm signal GM0014 is output (see figure 5).
In the embodiment of the invention, after exceeding the range value, an alarm signal is output, the brake rectification voltage is abnormal, and the fault reason is judged; the judging method comprises the following steps: the normal braking voltage indicates that there is no problem in the power supply and the rectified output of the braking circuit, and it can be directly determined as a motor driving fault or a mechanical part fault, as shown in fig. 6, the line connected to BK indicates the braking circuit, and the black part of the line connected to QL indicates the motor driving circuit.
In the embodiment of the invention, fig. 7 is a circuit principle of a brake voltage monitoring system of an elevator motor provided by the embodiment.
The positive effects of the present invention are further described below in conjunction with specific experimental data.
As shown in fig. 8, the abnormal voltage human-machine interface provided by the embodiment of the present invention has an alarm information display interface diagram: fig. 8(a) is a 16# elevator warning information display interface diagram; FIG. 8(b) is 18#
An elevator alarm information display interface diagram; fig. 8(c) is a 20# elevator warning information display interface diagram.
The 16# lifter, the 18# lifter and the 20# lifter were tested using the monitoring method of the present invention, and the experimental data are shown in the following table.
The effect is as follows: the abnormal trend of the rectifier can be judged by confirming the daily output voltage value of the rectifier, so that the abnormal trend can be judged in advance before a fault occurs, and preventive and safety activities can be carried out.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.
Claims (10)
1. A method for monitoring the braking voltage of an elevator motor is characterized by comprising the following steps:
leading out a rectified voltage signal wire from the output end of a brake rectifier, connecting the voltage signal wire into a direct current instrument, and displaying a current output voltage value;
setting a range value through parameters in the direct current instrument;
recording the voltage value, performing trend statistics on the output voltage of the brake rectifier, and judging whether the brake rectifier has a degradation tendency; the judgment method is that when the output voltage is lower than 150V, the performance of the rectifier is judged to be degraded.
2. The method of claim 1, wherein said step of setting the range value by a parameter inside the dc meter comprises the steps of:
selecting a meter: DC180V that determines the rectifier output voltage; determining the working effective voltage range of the rectifier to be 150-180V according to the field working condition; selecting a meter with the withstand voltage grade exceeding the maximum output voltage +/-199V; selecting a functional module with event contact output in the series of instruments;
adjusting parameters: setting the type of the input signal, including: inputting type A direct current voltage +/-199.99V; setting a voltage comparison output mode; setting the position of a decimal point; selecting a voltage sampling state; setting a voltage range value of HH 180V, H: 150V; the current noise voltage is set to 0V.
3. The method for monitoring the braking voltage of the elevator motor according to claim 1, wherein after the step of setting the range value by the parameter inside the dc meter, the following steps are further performed:
designing the wiring of the whole signal line;
and setting software parameters of a program and a human-computer interface.
4. The method of claim 3, wherein the setting of the software parameters of the program and human-machine interface comprises the steps of: when the output voltage of the rectifier exceeds a set range, an instrument event output contact is ON, the ON/OFF action of a DC24V relay is controlled through external connection, and a 24V relay contact outputs a signal to the PLC; the PLC needs to carry out circuit design editing according to working conditions, when the elevator acts, if the output voltage of the rectifier exceeds the range within 0.5 second, the PLC outputs alarm information, and the alarm information is displayed in a human-computer interface and is transmitted through a voice alarm system.
5. The monitoring method of brake voltage of elevator motor according to claim 4, wherein when the rectifier output voltage exceeds the set range, an alarm signal is output, the brake rectified voltage is abnormal, and the cause of the fault is judged; the judging method comprises the following steps: the normal brake voltage indicates that the power supply and the rectification output of the brake loop have no problem, and the brake voltage is directly judged to be a motor driving fault or a mechanical part fault.
6. The method of claim 1, wherein the step of visually displaying is performed by feeding back information on whether the brake rectifier has a degradation tendency through a human-machine interface.
7. An elevator motor brake voltage monitoring system for implementing the elevator motor brake voltage monitoring method according to any one of claims 1 to 6, wherein the elevator motor brake voltage monitoring system comprises:
the brake rectifier is connected with a voltage signal line at the output end of the brake rectifier into the direct current instrument and displays the current output voltage value;
the rectification voltage abnormity judgment module is used for outputting an alarm signal for a value signal exceeding a voltage set value range of the direct current instrument and judging a fault reason; meanwhile, the trend statistics is carried out on the output voltage of the brake rectifier by periodically recording the voltage value, and whether the brake rectifier has a deterioration tendency is judged;
and the human-computer interface is used for feeding back and judging whether the brake rectifier has degradation tendency information or not and carrying out visual display.
8. The elevator motor brake voltage monitoring system according to claim 7, wherein a voltage parameter range setting module is further integrated in the dc meter for setting a dc meter output parameter range value.
9. A program storage medium for receiving user input, the stored computer program causing an electronic device to perform the elevator motor braking voltage monitoring method of any one of claims 1 to 6.
10. A paint shop conveying facility, characterized in that the system for monitoring brake voltage of an elevator motor according to any one of claims 7 to 8 is mounted on the paint shop conveying facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676118.0A CN114966176A (en) | 2022-06-15 | 2022-06-15 | Elevator motor brake voltage monitoring system, monitoring method, medium and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676118.0A CN114966176A (en) | 2022-06-15 | 2022-06-15 | Elevator motor brake voltage monitoring system, monitoring method, medium and application |
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| Publication Number | Publication Date |
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| CN114966176A true CN114966176A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210676118.0A Pending CN114966176A (en) | 2022-06-15 | 2022-06-15 | Elevator motor brake voltage monitoring system, monitoring method, medium and application |
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| Country | Link |
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| CN (1) | CN114966176A (en) |
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2022
- 2022-06-15 CN CN202210676118.0A patent/CN114966176A/en active Pending
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