CN204046164U - A kind of explosion-proof high-pressure frequency converter prevents malice reset circuit - Google Patents
A kind of explosion-proof high-pressure frequency converter prevents malice reset circuit Download PDFInfo
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- CN204046164U CN204046164U CN201420487430.6U CN201420487430U CN204046164U CN 204046164 U CN204046164 U CN 204046164U CN 201420487430 U CN201420487430 U CN 201420487430U CN 204046164 U CN204046164 U CN 204046164U
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- frequency converter
- reset
- explosion
- proof high
- pressure frequency
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Abstract
The utility model discloses a kind of explosion-proof high-pressure frequency converter and prevent malice reset circuit.It by controlling power supply (1), reset button (2), reset relay coil (3), reset relay contact (31), frequency converter run signal (4) form.This circuit makes explosion-proof high-pressure frequency converter operationally can not reset, to prevent from maliciously resetting frequency converter.The features such as it is high that this circuit has reliability, safety, and structure is simple.
Description
Technical field
The utility model relates to a kind of explosion-proof high-pressure frequency converter and prevents malice reset circuit, for preventing from maliciously resetting frequency converter, belongs to converter technology field.
Background technology
When using explosion-proof high-pressure frequency converter, many times need the fault-signal of frequency converter and associated surrounding equipment to interlock.After breaking down, first should check where frequency converter breaks down, and occurs for what fault.Do not find out that failure cause directly to reset very easy generation accident to frequency converter.
Summary of the invention
For solving the problem, the utility model provides a kind of explosion-proof high-pressure frequency converter and prevents malice reset circuit.This circuit makes explosion-proof high-pressure frequency converter operationally cannot reset, to prevent from maliciously resetting frequency converter.
The technical solution of the utility model is: this electric route test power supply (1), reset button (2), reset relay coil (3), reset relay contact (31), frequency converter run signal (4) composition.
Control power supply (1) to be made up of a single-phase transformer; Reset button (2) often drives button; Reset relay contact (31) and frequency converter run signal (4) are normally opened contacts.
Control in power supply (1), the former limit of single-phase transformer is connected with external ac power source; One end of single-phase transformer secondary is connected with one end of reset button (2); The other end of single-phase transformer secondary is connected with one end of reset relay coil (3); The other end of reset button (2) is connected with one end of frequency converter run signal (4); The other end of frequency converter run signal (4) is connected with the other end of reset relay coil (3).The two ends access explosion-proof high-pressure frequency converter of reset relay contact (31), as reset signal.
The beneficial effects of the utility model are: this circuit is simple, reliable, safe, can effectively prevent explosion-proof high-pressure frequency converter malice from resetting.
Accompanying drawing explanation
Fig. 1 is the utility model composition frame chart.
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
The utility model by controlling power supply (1), reset button (2), reset relay coil (3), reset relay contact (31), frequency converter run signal (4) form.
Control power supply (1) to be made up of a single-phase transformer; Reset button (2) often drives button; Reset relay contact (31) and frequency converter run signal (4) are normally opened contacts.
Control in power supply (1), the former limit of single-phase transformer is connected with external ac power source; One end of single-phase transformer secondary is connected with one end of reset button (2); The other end of single-phase transformer secondary is connected with one end of reset relay coil (3); The other end of reset button (2) is connected with one end of frequency converter run signal (4); The other end of frequency converter run signal (4) is connected with the other end of reset relay coil (3).The two ends access explosion-proof high-pressure frequency converter of reset relay contact (31), as reset signal.
Workflow of the present utility model is as follows:
From outside alternating current by after single-phase transformer transformation for whole control loop provides control power supply.
When frequency converter off-duty in ancillary equipment, frequency converter run signal (4) closes, press reset button (2) can make reset relay coil (3) electric, drive reset relay contact (31) to reset to frequency converter; When the frequency converter in ancillary equipment just operationally, frequency converter run signal (4) disconnects, even if at this moment press reset button (2) also can not make reset relay coil (3) electric, thus reset relay contact (31) cannot be driven to reset to frequency converter, reach the object preventing malice reset frequency converter.
It is high that this circuit has reliability, and safety controls the features such as simple.
Claims (1)
1. explosion-proof high-pressure frequency converter prevents a malice reset circuit, it is characterized in that: be made up of control power supply (1), reset button (2), reset relay coil (3), reset relay contact (31), frequency converter run signal (4); Described control power supply (1) is made up of a single-phase transformer, and reset button (2) often drives button, and reset relay contact (31) and frequency converter run signal (4) are normally opened contacts; Control in power supply (1), the former limit of single-phase transformer is connected with external ac power source, one end of single-phase transformer secondary is connected with one end of reset button (2), the other end of single-phase transformer secondary is connected with one end of reset relay coil (3), the other end of reset button (2) is connected with one end of frequency converter run signal (4), the other end of frequency converter run signal (4) is connected with the other end of reset relay coil (3), the two ends access explosion-proof high-pressure frequency converter of reset relay contact (31), as reset signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487430.6U CN204046164U (en) | 2014-08-27 | 2014-08-27 | A kind of explosion-proof high-pressure frequency converter prevents malice reset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487430.6U CN204046164U (en) | 2014-08-27 | 2014-08-27 | A kind of explosion-proof high-pressure frequency converter prevents malice reset circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046164U true CN204046164U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420487430.6U Active CN204046164U (en) | 2014-08-27 | 2014-08-27 | A kind of explosion-proof high-pressure frequency converter prevents malice reset circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204046164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033002A (en) * | 2015-03-20 | 2016-10-19 | 唐山开诚电控设备集团有限公司 | Explosion-proof high pressure frequency converter water cooling system liquid level detection device |
-
2014
- 2014-08-27 CN CN201420487430.6U patent/CN204046164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033002A (en) * | 2015-03-20 | 2016-10-19 | 唐山开诚电控设备集团有限公司 | Explosion-proof high pressure frequency converter water cooling system liquid level detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee after: CITIC HIC KAICHENG INTELLIGENCE EQUIPMENT CO., LTD. Address before: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee before: Tangshan Kaicheng Electronic Control Equipment Group Co., Ltd. |