JP3576624B2 - Feed water pump control device - Google Patents
Feed water pump control device Download PDFInfo
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- JP3576624B2 JP3576624B2 JP02878895A JP2878895A JP3576624B2 JP 3576624 B2 JP3576624 B2 JP 3576624B2 JP 02878895 A JP02878895 A JP 02878895A JP 2878895 A JP2878895 A JP 2878895A JP 3576624 B2 JP3576624 B2 JP 3576624B2
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Description
【０００１】
【産業上の利用分野】
本発明は給水ポンプの運転制御を行う給水ポンプ制御装置に関し、特に停電等の電源遮断時直前の給水ポンプの運転情報を記憶し、復電に際し、該記憶された運転情報に基づいて給水ポンプを運転し、給水ポンプの運転を電源遮断時直前の状態に復帰させることができる給水ポンプ制御装置に関するものである。
【０００２】
【従来技術】
従来、この種の給水ポンプ制御装置の駆動電源には給水ポンプの駆動電源と同様の商用交流電源が使用される場合が多く、運転状態を記憶しないスイッチを使用した場合、停電により電源が遮断され、その後復電すると初期状態になり運転が再開できず、断水という重大な不具合を引き起こす。
【０００３】
また、警報情報、運転来歴等のメンテナンス情報は、給水ポンプが設置されている間表示等で確認するために、継続して記憶することが必要となる。従来このような不具合を避けるために、バッテリーやコンデンサを使用した補助電源回路を設けて給水ポンプの運転情報を記憶していた。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記バッテリーやコンデンサを使用した補助電源回路を設けて給水ポンプの運転情報を記憶する方法は、いずれも下記のような問題がある。
▲１▼バッテリーの電気的寿命がくればバッテリーを交換する必要がある。
▲２▼コンデンサーは電気的容量から長時間の情報記憶は困難である。
【０００５】
本発明は上述の事情に鑑みてなされたもので、停電等により電源が遮断した場合、給水ポンプの運転情報を記憶するために補助電源回路を別に設けることなく、情報を長期間に渡って記憶保持することができ、復電時に電源遮断時直前の運転状態に給水ポンプを復帰させることができる給水ポンプ制御装置を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記課題を解決するため本発明は、給水ポンプを運転制御する制御手段を具備する給水ポンプ制御装置であって、制御手段は、電源が遮断されてから再び電源が供給されるまで運転に必要な情報を記憶保持することができる書き換え可能な不揮発性の記憶手段と、該記憶手段へ情報を書き込む書き込み手段と、該記憶手段に書き込まれた情報を読み出す読み出し手段と、運転情報及び警報情報を表示する手段と、電源の遮断及び復電を検出する検出手段を備え、電源遮断時に直前のポンプ運転情報を記憶手段へ書き込み、復電時に該記憶手段から情報を読み出し、電源遮断時直前と同じ状態で給水ポンプの運転を再開することを特徴とする。
【０００７】
また、制御手段は、一定時間間隔発生手段を備え、該一定時間毎に前記記憶手段の給水ポンプの運転情報を書き換えることを特徴とする。
【０００８】
また、制御手段は、給水ポンプの運転情報が変化した時に少なくとも該変化した運転情報を記憶手段に書き換えることを特徴とする。
【０００９】
【作用】
本発明は停電等の電源遮断時に直前のポンプ運転情報を不揮発性の記憶手段へ書き込むので、該給水ポンプ運転情報を記憶するために補助電源回路を別に設けることなく、情報を短期間に渡って記憶保持でき、復電時に該記憶手段から情報を読み出し、電源遮断時直前と同じ状態で給水ポンプの運転を再開することができる。
【００１０】
【実施例】
以下、本発明の実施例を図面に基づいて説明する。図１は給水ポンプ制御装置の構成を示す図である。図示するように、給水ポンプ制御装置は、入力部１、ＣＰＵ２、出力部３、表示部４、不揮発性記憶素子（不揮発性ＲＡＭ等）５、直流電源ユニット６及び停電検出回路７で構成される。直流電源ユニット６には交流電源が接続され、該交流を直流に変換し、ＣＰＵ２等の各部に供給する。また、出力部３から給水ポンプ駆動部８にポンプ運転制御信号が出力される。
【００１１】
直流電源ユニット６の直流電源を停電検出回路７で監視して、ＣＰＵ２へ供給する。該ＣＰＵ２は予め定められた制御内容に従い、入力部１からの入力情報により出力部３に制御結果を出力する。この出力部３の出力は表示部４などに接続されている。ＣＰＵ２は不揮発性記憶素子５に接続され、ＣＰＵ２により情報が不揮発性記憶素子５へ書き込まれ、ＣＰＵ２により情報が不揮発性記憶素子５から読み込まれる。
【００１２】
図２は図１に示す給水ポンプ制御装置の動作フローを示す図である。電源が投入されると（ステップＳＴ１０）、予め決められた制御動作プログラムにより動作処理を開始し、不揮発性記憶素子５から情報を読み込み（ステップＳＴ１１）、その情報を基に制御動作を行うためにの初期設定を行う（ステップＳＴ１２）。
【００１３】
続いて入力部１からの入力情報の入力処理を行い（ステップＳＴ１３）、前記初期設定及び入力処理に基づいて給水ポンプを制御する制御処理を行う（ステップＳＴ１４）。これにより出力部３からポンプ運転制御信号が給水ポンプ駆動部８に出力され、給水ポンプは不揮発性記憶素子５から読み込まれた情報及び入力部１から入力された情報に基づいて運転される。
【００１４】
次に、該制御処理の結果を出力する出力処理を行い（ステップＳＴ１５）、続いて、停電検出回路７で停電が検出されたか否かを判断し（ステップＳＴ１６）、停電状態にあれば、即座に不揮発性記憶素子５へ運転情報、警報情報、メンテナンス情報等の給水ポンプ運転に必要な情報を書き込む（ステップＳＴ１７）。
【００１５】
電源が復帰したときは、最初の電源投入時の動作となり（ステップＳＴ１０）、不揮発性記憶素子５には停電直前の運転情報、警報情報、メンテナンス情報が記憶されている為、給水ポンプは停電直前の状態と同じ状態で復帰する。
【００１６】
なお、上記実施例では、停電検出回路７で停電が検出された時、不揮発性記憶素子５へ運転情報、警報情報、メンテナンス情報等の給水ポンプ運転に必要な情報を書き込むように構成したが、これに限定されるものではなく、一定時間間隔発生手段を備え、一定時間毎に不揮発性記憶素子５へ運転情報、警報情報、メンテナンス情報等の給水ポンプ運転に必要な情報を書き込むように構成し、停電検出回路７で停電が検出された時、直前に記憶されたこれらの情報を読み込むことができるように構成しても良い。
【００１７】
また、給水ポンプの運転情報が変化した時に該変化した運転情報を不揮発性記憶素子５へ書き換えるようにしてもよい。
【００１８】
【発明の効果】
以上、説明したように本発明によれば下記のような優れた効果が得られる。
（１）停電等の電源遮断時において給水ポンプの運転状態の各種情報を補助電源回路を必要としない不揮発性記憶素子に書き込むことにより、長期に渡り記憶保持が可能となり、電源復帰時に電源遮断時直前の運転状態と同じ運転状態で運転が再開され、ポンプ停止による断水という重大な不具合を回避できる。
【００１９】
（２）また、警報情報、メンテナンス情報等の給水ポンプの設置期間を継続的に監視する必要がある情報などについて、電源遮断後、電源復帰時に初期状態に戻ることなく、電源遮断時直前の情報に復帰させることができる。
【図面の簡単な説明】
【図１】本発明の給水ポンプ制御装置の構成を示す図である。
【図２】本発明の給水ポンプ制御装置の動作フローを示す図である。
【符号の説明】
１ 入力部
２ ＣＰＵ
３ 出力部
４ 表示部
５ 不揮発性記憶素子
６ 直流電源ユニット
７ 停電検出回路
８ 給水ポンプ駆動部[0001]
[Industrial applications]
The present invention relates to a water supply pump control device that performs operation control of a water supply pump, and particularly stores operation information of a water supply pump immediately before power cutoff such as a power failure, and upon power recovery, controls a water supply pump based on the stored operation information. The present invention relates to a water supply pump control device that can operate and return the operation of a water supply pump to a state immediately before power-off.
[0002]
[Prior art]
Conventionally, a commercial AC power supply similar to the drive power supply for the water supply pump is often used as the drive power supply for this type of water supply pump control device, and when a switch that does not store the operation state is used, the power supply is cut off due to a power failure. Then, when the power is restored, it returns to the initial state, and the operation cannot be restarted, causing a serious problem of water outage.
[0003]
In addition, maintenance information such as alarm information and driving history needs to be continuously stored in order to confirm on a display or the like while the water supply pump is installed. Conventionally, in order to avoid such a problem, an auxiliary power supply circuit using a battery or a capacitor is provided to store operation information of the water supply pump.
[0004]
[Problems to be solved by the invention]
However, any of the above methods of providing an auxiliary power supply circuit using a battery or a capacitor and storing the operation information of the water supply pump has the following problems.
(1) The battery needs to be replaced when the electrical life of the battery has expired.
{Circle around (2)} It is difficult to store information for a long time due to the electric capacity of the capacitor.
[0005]
The present invention has been made in view of the above circumstances, and when power is cut off due to a power failure or the like, information is stored over a long period of time without separately providing an auxiliary power supply circuit for storing operation information of a water supply pump. It is an object of the present invention to provide a water supply pump control device that can maintain the water supply pump in an operation state immediately before power-off when power is restored.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a feedwater pump control device including a control means for controlling the operation of a feedwater pump, wherein the control means is necessary for operation until power is supplied again after power is cut off. Rewritable non-volatile storage means capable of storing and holding information, writing means for writing information to the storage means, reading means for reading information written to the storage means, and display of operation information and alarm information And a detecting means for detecting power cut-off and power recovery, and writes the pump operation information immediately before the power is cut off to the storage means, reads the information from the storage means at the time of power recovery, and stores the same state as immediately before the power cut-off. Then, the operation of the feedwater pump is restarted .
[0007]
Further, the control means includes a fixed time interval generating means, and rewrites the operation information of the water supply pump in the storage means at every fixed time.
[0008]
Further, the control means is characterized in that when the operation information of the water supply pump changes, at least the changed operation information is rewritten to the storage means.
[0009]
[Action]
Since the present invention writes the immediately preceding pump operation information to the non-volatile storage means when the power is cut off due to a power failure or the like, the information can be transferred over a short period of time without separately providing an auxiliary power supply circuit for storing the water supply pump operation information. The information can be stored and read, and the information can be read from the storage means when the power is restored, and the operation of the water supply pump can be resumed in the same state as immediately before the power was cut off .
[0010]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of the feedwater pump control device. As shown in the figure, the water supply pump control device includes an input unit 1, a CPU 2, an output unit 3, a display unit 4, a nonvolatile storage element (such as a nonvolatile RAM) 5, a DC power supply unit 6, and a power failure detection circuit 7. . The DC power supply unit 6 is connected to an AC power supply, converts the AC into DC, and supplies the DC to each unit such as the CPU 2. Further, a pump operation control signal is output from the output unit 3 to the feed water pump driving unit 8.
[0011]
The DC power supply of the DC power supply unit 6 is monitored by the power failure detection circuit 7 and supplied to the CPU 2. The CPU 2 outputs a control result to the output unit 3 based on input information from the input unit 1 according to predetermined control contents. The output of the output unit 3 is connected to the display unit 4 and the like. The CPU 2 is connected to the non-volatile storage element 5, information is written to the non-volatile storage element 5 by the CPU 2, and information is read from the non-volatile storage element 5 by the CPU 2.
[0012]
FIG. 2 is a diagram showing an operation flow of the water supply pump control device shown in FIG. When the power is turned on (step ST10), an operation process is started by a predetermined control operation program, information is read from the nonvolatile memory element 5 (step ST11), and a control operation is performed based on the information. (Step ST12).
[0013]
Subsequently, input processing of input information from the input unit 1 is performed (step ST13), and control processing for controlling the water supply pump is performed based on the initial setting and the input processing (step ST14). As a result, a pump operation control signal is output from the output unit 3 to the water supply pump driving unit 8, and the water supply pump is operated based on the information read from the nonvolatile storage element 5 and the information input from the input unit 1.
[0014]
Next, an output process for outputting a result of the control process is performed (step ST15). Subsequently, it is determined whether or not a power failure is detected by the power failure detection circuit 7 (step ST16). Then, information necessary for water supply pump operation, such as operation information, alarm information, and maintenance information, is written to the nonvolatile storage element 5 (step ST17).
[0015]
When the power is restored, the operation is the first power-on operation (step ST10). Since the non-volatile storage element 5 stores the operation information, the alarm information, and the maintenance information immediately before the power failure, the water supply pump operates immediately before the power failure. Returns in the same state as
[0016]
In the above embodiment, when a power failure is detected by the power failure detection circuit 7, information necessary for water supply pump operation, such as operation information, alarm information, and maintenance information, is written to the nonvolatile storage element 5. The present invention is not limited to this, and is provided with a fixed time interval generating means, and writes information necessary for water supply pump operation, such as operation information, alarm information, and maintenance information, to the nonvolatile storage element 5 at fixed time intervals. When the power failure is detected by the power failure detection circuit 7, the information stored immediately before may be read.
[0017]
Further, when the operation information of the water supply pump changes, the changed operation information may be rewritten to the nonvolatile storage element 5.
[0018]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
(1) By writing various information of the operation state of the water supply pump into a nonvolatile storage element that does not require an auxiliary power supply circuit when the power supply is cut off due to a power failure or the like, the memory can be retained for a long time. The operation is resumed in the same operation state as the immediately preceding operation state, and a serious problem of water cutoff due to pump stoppage can be avoided.
[0019]
(2) In addition, for information that requires continuous monitoring of the installation period of the water supply pump, such as alarm information and maintenance information, the information immediately before the power-off without returning to the initial state when the power returns after the power-off. Can be restored.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a feedwater pump control device of the present invention.
FIG. 2 is a diagram showing an operation flow of the water supply pump control device of the present invention.
[Explanation of symbols]
1 input unit 2 CPU
3 Output unit 4 Display unit 5 Non-volatile storage element 6 DC power supply unit 7 Power failure detection circuit 8 Water supply pump drive unit
Claims (3)
前記制御手段は、電源が遮断されてから再び電源が供給されるまで運転に必要な情報を記憶保持することができる書き換え可能な不揮発性の記憶手段と、該記憶手段へ情報を書き込む書き込み手段と、該記憶手段に書き込まれた情報を読み出す読み出し手段と、運転情報及び警報情報を表示する手段と、電源の遮断及び復電を検出する検出手段を備え、
電源遮断時に直前のポンプ運転情報を前記記憶手段へ書き込み、復電時に該記憶手段から情報を読み出し、電源遮断時直前と同じ状態で給水ポンプの運転を再開することを特徴とする給水ポンプ制御装置。A water supply pump control device comprising a control means for controlling the operation of the water supply pump,
The control unit includes a rewritable nonvolatile storage unit that can store and hold information necessary for operation until power is supplied again after the power is turned off, and a writing unit that writes information to the storage unit. Reading means for reading information written in the storage means, means for displaying operation information and alarm information, and detection means for detecting power cutoff and power recovery,
A water supply pump control device for writing the pump operation information immediately before power-off to the storage means, reading the information from the storage means when power is restored, and restarting the operation of the water supply pump in the same state as immediately before power-off. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02878895A JP3576624B2 (en) | 1995-01-24 | 1995-01-24 | Feed water pump control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02878895A JP3576624B2 (en) | 1995-01-24 | 1995-01-24 | Feed water pump control device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004009762A Division JP2004176726A (en) | 2004-01-16 | 2004-01-16 | Water feeding pump controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08200233A JPH08200233A (en) | 1996-08-06 |
| JP3576624B2 true JP3576624B2 (en) | 2004-10-13 |
Family
ID=12258174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02878895A Expired - Lifetime JP3576624B2 (en) | 1995-01-24 | 1995-01-24 | Feed water pump control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3576624B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4820442B2 (en) * | 2009-11-09 | 2011-11-24 | 株式会社日立産機システム | Fire fighting pump |
| JP4650590B2 (en) * | 2010-10-12 | 2011-03-16 | マックス株式会社 | Air compressor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917444B2 (en) * | 1978-10-31 | 1984-04-21 | 富士電機株式会社 | Water pump automatic start processing method |
| JPH0631619B2 (en) * | 1984-07-27 | 1994-04-27 | 株式会社荏原製作所 | Variable speed water supply device |
| JP2556039B2 (en) * | 1986-06-19 | 1996-11-20 | 株式会社島津製作所 | Feed pump |
| JPH0730944B2 (en) * | 1988-01-21 | 1995-04-10 | 三菱電機株式会社 | Control device for multi-room air conditioner |
| JP2702952B2 (en) * | 1988-01-27 | 1998-01-26 | 株式会社日立製作所 | Water supply device using variable speed pump |
| JPH0510655A (en) * | 1991-07-05 | 1993-01-19 | Matsushita Refrig Co Ltd | Defrosting control device of refrigerator |
| JPH05149290A (en) * | 1991-11-26 | 1993-06-15 | Kawamoto Seisakusho:Kk | Control method for automatic water feed device |
| JPH06344533A (en) * | 1993-06-07 | 1994-12-20 | Fuji Photo Film Co Ltd | Dampening water automatically supplementing apparatus |
-
1995
- 1995-01-24 JP JP02878895A patent/JP3576624B2/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| JPH08200233A (en) | 1996-08-06 |
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