CN204624872U - Elevator electric-control system and elevator - Google Patents
Elevator electric-control system and elevator Download PDFInfo
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- CN204624872U CN204624872U CN201520012020.0U CN201520012020U CN204624872U CN 204624872 U CN204624872 U CN 204624872U CN 201520012020 U CN201520012020 U CN 201520012020U CN 204624872 U CN204624872 U CN 204624872U
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Abstract
The utility model discloses a kind of elevator electric-control system and elevator, belong to elevator control technology field.Comprise master control power switch circuit, and the protective circuit be connected with described master control power switch circuit; Described master control power switch circuit and protective circuit are by total contactless switch connection control device; Described controller is respectively by the running connecting industrial frequency control circuit and frequency conversion control circuit drive motor control elevator.Industrial frequency control system and frequency-changing control system are integrated by this elevator electric-control system and elevator, realize the power frequency to elevator and variable frequency control simultaneously, when variable mode breaks down and temporarily cannot get rid of, elevator can being made to continue to run by switching to power frequency pattern, achieving the flexible switching to elevator power frequency and variable frequency control.
Description
Technical field
The utility model provides a kind of elevator electric-control system, and specifically the two electric-control system of a kind of elevator and elevator, belong to elevator control technology field.
Background technology
Building hoist mode in the market mainly contains two kinds, and one is that contactless switch directly starts control (hereinafter referred to as industrial frequency control), and one is variable frequency control.
The first, industrial frequency control.Start, braking is very fierce, impact very large to steel structure, motor, drg, retarder, steel structure life-span are shorter, take extremely uncomfortable.
The second, variable frequency control.Start, braking is smoothly comfortable, impact steel structure and be almost equal to zero, motor, drg, retarder, steel structure life-span are very long, especially drg.But because its cost is relatively high, control comparatively complicated, be not widely used at present.
Utility model content
For above-mentioned prior art Problems existing, the utility model provides a kind of elevator electric-control system, the power frequency to elevator and variable frequency control can be realized simultaneously, when variable mode breaks down and temporarily cannot get rid of, elevator can being made to continue to run by switching to power frequency pattern, achieving the flexible switching to elevator power frequency and variable frequency control.
To achieve these goals, this elevator electric-control system comprises master control power switch circuit, and the protective circuit be connected with described master control power switch circuit;
Described master control power switch circuit and protective circuit are by total contactless switch connection control device;
Described controller is respectively by the running connecting industrial frequency control circuit and frequency conversion control circuit drive motor control elevator.
Further, described industrial frequency control circuit is respectively by power frequency upcoming contact device and the descending contactless switch drive motor running of power frequency.
Further, described frequency conversion control circuit connects the running of frequency conversion output contactor drive motor by frequency converter.
Further, described power frequency upcoming contact device and form electrical interlocks circuit between the descending contactless switch of power frequency and described frequency conversion output contactor.
Further, described controller arranges work frequency conversion change-over switch.
Further, described controller is PLC control circuit.
Meanwhile, in order to realize utility model object, the utility model additionally provides a kind of elevator applying above-mentioned electric-control system.
Compared with prior art, industrial frequency control system and frequency-changing control system are integrated by this elevator electric-control system, realize the power frequency to elevator and variable frequency control simultaneously, when variable mode breaks down and temporarily cannot get rid of, elevator can being made to continue to run by switching to power frequency pattern, achieving the flexible switching to elevator power frequency and variable frequency control.
Equally, a kind of elevator applying above-mentioned electric-control system that the utility model provides also has above-mentioned beneficial effect.
Accompanying drawing explanation
Fig. 1 is control principle block diagram of the present utility model;
Fig. 2 is master control schematic circuit diagram of the present utility model;
Fig. 3 is PLC control circuit schematic diagram of the present utility model;
In figure: 1, master control power switch circuit, 2, protective circuit, 3, controller, 4, industrial frequency control circuit, 5, frequency conversion control circuit, 6, motor, 7, elevator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, Figure 2 and Figure 3, this elevator electric-control system comprises master control power switch circuit 1, and the protective circuit 2 be connected with described master control power switch circuit 1;
Described master control power switch circuit 1 and protective circuit 2 are by total contactless switch KM2 connection control device 3;
Described controller 3 controls the running of elevator 7 respectively by connection industrial frequency control circuit 4 and frequency conversion control circuit 5 drive motor 6.
Further, as shown in Figures 2 and 3, described industrial frequency control circuit 4 is respectively by the running of power frequency upcoming contact device KM5 and power frequency descending contactless switch KM6 drive motor 6.Realize the rising running of elevator 7 under power frequency pattern by power frequency upcoming contact device KM5 drive motor 6, realize the decline running of elevator 7 under power frequency pattern by power frequency descending contactless switch KM6 drive motor 6.
Further, as shown in Figures 2 and 3, described frequency conversion control circuit 5 is operated by frequency converter TF connection frequency conversion output contactor KM3 drive motor 6.By opening the frequency conversion output contactor KM3 drive motor 6 that frequency converter TF connects, realizing elevator 7 and operating under variable mode.
Further, electrical interlocks circuit is formed between described power frequency upcoming contact device KM5 and power frequency descending contactless switch KM6 and described frequency conversion output contactor KM3.Make power frequency pattern and variable mode realize electrical interlocks on hardware electric wiring, power frequency pattern and variable mode can not actions simultaneously, operate, prevent power frequency pattern and variable mode generation malfunction under usual elevator described in the utility model is in variable mode.
Further, as shown in Figure 3, described controller 3 arranges work frequency conversion change-over switch QC2.By any switching laws that work frequency conversion change-over switch QC2 can realize between power frequency pattern and variable mode according to the actual needs of camp site.
Further, described controller 3 is PLC control circuit.Achieve the control of power frequency pattern and variable mode by PLC control circuit and mutually switch.Simultaneously by arranging logical interlock pattern in PLC control circuit, achieve the logical interlock effect between power frequency pattern and variable mode equally, the electrical interlocks realized on hardware electric wiring with described power frequency pattern and variable mode be combined with each other, reach the effect of double interlock, prevent power frequency pattern and variable mode action simultaneously further, and cause the generation of maloperation situation, make system works more stable, safely, reliably.
As shown in Figures 2 and 3, the basic functional principle of this elevator electric-control system is:
Each limiting and protecting device contact, main order controls contact, the input side of each contactless switch open contact access controller PLC, by being connected to the work frequency conversion change-over switch QC2 on controller PLC on X20 point, can be implemented in freely switching between power frequency pattern and variable mode, under normal circumstances, elevator 7 runs with variable mode, SB1 is started when operator presses in start button cage, or cage is when starting SB2 outward, total contactless switch KM2 and frequency conversion output contactor KM3 adhesive in succession, frequency converter TF obtains electric, system in running order person to be operated sends operating order.
The mouth of controller PLC control circuit, controls power frequency pattern and variable mode, that is: respectively
Under power frequency pattern, by power frequency upcoming contact device KM5 and the descending contactless switch KM6 of power frequency drive motor 6 respectively, elevator 7 is made to realize rising under power frequency pattern or down maneuver;
Under variable mode, by opening the frequency conversion output contactor KM3 drive motor 6 that frequency converter TF connects, elevator 7 is made to realize rising under variable mode or down maneuver.
Meanwhile, of the present utility modelly embodiment still provides a kind of elevator applying above-mentioned electric-control system.
In sum, industrial frequency control system and frequency-changing control system are integrated by this elevator electric-control system, realize the power frequency to elevator and variable frequency control simultaneously, when variable mode breaks down and temporarily cannot get rid of, elevator can being made to continue to run by switching to power frequency pattern, achieving the flexible switching to elevator power frequency and variable frequency control.
Claims (7)
1. an elevator electric-control system, comprises master control power switch circuit, and the protective circuit be connected with described master control power switch circuit; It is characterized in that,
Described master control power switch circuit and protective circuit are by total contactless switch connection control device;
Described controller is respectively by the running connecting industrial frequency control circuit and frequency conversion control circuit drive motor control elevator.
2. a kind of elevator electric-control system according to claim 1, is characterized in that,
Described industrial frequency control circuit is respectively by power frequency upcoming contact device and the descending contactless switch drive motor running of power frequency.
3. a kind of elevator electric-control system according to claim 1, is characterized in that,
Described frequency conversion control circuit connects the running of frequency conversion output contactor drive motor by frequency converter.
4. a kind of elevator electric-control system according to Claims 2 or 3, is characterized in that,
Described power frequency upcoming contact device and form electrical interlocks circuit between the descending contactless switch of power frequency and described frequency conversion output contactor.
5. a kind of elevator electric-control system according to claim 1, is characterized in that,
Described controller arranges work frequency conversion change-over switch.
6. a kind of elevator electric-control system according to claim 1, is characterized in that,
Described controller is PLC control circuit.
7. an elevator, is characterized in that,
Comprise the elevator electric-control system described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012020.0U CN204624872U (en) | 2015-01-08 | 2015-01-08 | Elevator electric-control system and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012020.0U CN204624872U (en) | 2015-01-08 | 2015-01-08 | Elevator electric-control system and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204624872U true CN204624872U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520012020.0U Active CN204624872U (en) | 2015-01-08 | 2015-01-08 | Elevator electric-control system and elevator |
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| Country | Link |
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| CN (1) | CN204624872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041627A (en) * | 2017-03-24 | 2017-08-15 | 江苏工程职业技术学院 | A kind of desk for being freely lifted height |
-
2015
- 2015-01-08 CN CN201520012020.0U patent/CN204624872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041627A (en) * | 2017-03-24 | 2017-08-15 | 江苏工程职业技术学院 | A kind of desk for being freely lifted height |
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