JPH0361184U - - Google Patents
Info
- Publication number
- JPH0361184U JPH0361184U JP12156689U JP12156689U JPH0361184U JP H0361184 U JPH0361184 U JP H0361184U JP 12156689 U JP12156689 U JP 12156689U JP 12156689 U JP12156689 U JP 12156689U JP H0361184 U JPH0361184 U JP H0361184U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- current detection
- detection section
- reference value
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案の一実施例を示す系統図、第２
図は同例の要部を示す回路図、第３図は同例およ
び従来例の動作特性を比較して示す線図、第４図
は従来例の要部を示す回路図である。
１…ポンプ駆動用電動機、２…入力回路、３…
半導体スイツチ、４…電流検出器、５…比較回路
、６…開閉制御部、１５…変流器、１６…整流器
、１７…抵抗、１８，２２…演算増幅機、１７…
抵抗、１９…コンデンサ、２０…基準値設定部、
２１…ツエナダイオード（遅延時間急減手段）、
Ｉ…入力電流、Ｔ…遮断所要時間。
Figure 1 is a system diagram showing one embodiment of the present invention;
FIG. 3 is a diagram showing a comparison of the operating characteristics of the same example and the conventional example, and FIG. 4 is a circuit diagram showing the important parts of the conventional example. 1... Pump driving electric motor, 2... Input circuit, 3...
Semiconductor switch, 4... Current detector, 5... Comparison circuit, 6... Switching control section, 15... Current transformer, 16... Rectifier, 17... Resistor, 18, 22... Operational amplifier, 17...
Resistor, 19... Capacitor, 20... Reference value setting section,
21...Zena diode (delay time rapid reduction means),
I...Input current, T...Required time for interruption.
Claims (1)
導体スイツチを制御可能な開閉制御部、上記入力
回路の電流に対応する信号を送出可能な電流検出
部および、この電流検出部からの信号が基準値以
上の場合は上記開閉制御部に遮断信号を送出可能
な比較回路を備えたポンプ制御装置において、上
記電流検出部からの信号が上記基準値より大きい
所定値以上の場合は上記比較回路に予め設定され
た遅延時間を急減させる手段を具備することを特
徴とするポンプ制御装置。 An opening/closing control section that can control the semiconductor switch provided in the input circuit of the pump drive motor, a current detection section that can send out a signal corresponding to the current of the input circuit, and a signal from this current detection section that is above a reference value. In this case, in a pump control device equipped with a comparison circuit capable of sending a cutoff signal to the opening/closing control section, if the signal from the current detection section is greater than or equal to a predetermined value that is greater than the reference value, the signal is preset in the comparison circuit. A pump control device characterized by comprising means for rapidly reducing delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12156689U JPH0361184U (en) | 1989-10-17 | 1989-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12156689U JPH0361184U (en) | 1989-10-17 | 1989-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361184U true JPH0361184U (en) | 1991-06-14 |
Family
ID=31669600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12156689U Pending JPH0361184U (en) | 1989-10-17 | 1989-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361184U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63142133A (en) * | 1986-12-05 | 1988-06-14 | 北海道水道機材株式会社 | Overcurrent protective circuit of non-freeze water feeder |
-
1989
- 1989-10-17 JP JP12156689U patent/JPH0361184U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63142133A (en) * | 1986-12-05 | 1988-06-14 | 北海道水道機材株式会社 | Overcurrent protective circuit of non-freeze water feeder |
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