JPS5859392U - pump control device - Google Patents
pump control deviceInfo
- Publication number
- JPS5859392U JPS5859392U JP15288181U JP15288181U JPS5859392U JP S5859392 U JPS5859392 U JP S5859392U JP 15288181 U JP15288181 U JP 15288181U JP 15288181 U JP15288181 U JP 15288181U JP S5859392 U JPS5859392 U JP S5859392U
- Authority
- JP
- Japan
- Prior art keywords
- inverter device
- pump
- control device
- commercial power
- flow rate
- 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
Landscapes
- Control Of Fluid Pressure (AREA)
- Control Of Multiple Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のポンプ制御装置の主回路の結線図、第２
図は本考案に係るポンプ制御装置の一実施例の主回路の
結線図である。
１・・・・・・商用電源、２・・・・・・インバータ装
置、３ａ。
３ｂ、 ３ｃ、−−−３ｎ−−−−−−主接触器、３
’ ａ、 ３’ ｂ。
３′ｃ・・・・・・商用電源側主接触器、３″ａ、
３″ｂ。
３″Ｃ・・・・・・インバータ側主接触器、４ａ、
４ｂ。
４Ｃ・・・４ｎ・・・・・・保護継電器、５ａ、 ５ｂ
、 ５ｃ、・・・５ｎ・・・・・・誘導電動機、６・・
・・・・圧力設定器、７・・・・・・ＰＩ調節計、８ａ
、 ｆｉｂ、 ８ｃ・・・・・・シーケンス制御部
、９・・・・・・台数制御装置、１０・・・・・・流量
比較器、１１・・・・・・圧力検出器、１２・・・・・
・流量変換器、１３・・・・・・流量検出器、１４ａ、
１４ｂ、 １４Ｃ・・・・・・ポンプ。Figure 1 is a wiring diagram of the main circuit of a conventional pump control device;
The figure is a wiring diagram of the main circuit of an embodiment of the pump control device according to the present invention. 1...Commercial power supply, 2...Inverter device, 3a. 3b, 3c, ---3n----Main contactor, 3
'a, 3' b. 3'c... Commercial power supply side main contactor, 3'a,
3″b. 3″C...Inverter side main contactor, 4a,
4b. 4C...4n...Protective relay, 5a, 5b
, 5c,...5n...Induction motor, 6...
...Pressure setting device, 7...PI controller, 8a
, fib, 8c... Sequence control unit, 9... Number control device, 10... Flow rate comparator, 11... Pressure detector, 12... ...
・Flow rate converter, 13...Flow rate detector, 14a,
14b, 14C...pump.
Claims (1)
プを商用電源で駆動することにより、流体の吐出圧力を
制御するポンプ制御装置において、複数台のポンプ駆動
電動機をそれぞれインバータ・ 装置と商用電源
のいずれからも給電可能とするための切換接触器と、吐
出流量を検出する流量比較器などよりなる圧力制御系及
びポンプの運転順序を一定方向に制御する台数制御装置
を備え、該流量比較器の信号を該台数制御装置に入力す
るごとく構成し、流量増大時は該インバータ装置で駆動
中のポンプ駆動用電動機を商用電源駆動に切り換え、か
つ該インバータ装置を前記台数ｉ御装置により新規に追
加駆動すべきポンプ駆動用電動機に接続し、又流量減少
時は前記台数制御装置により、稼動中のポンプ駆動用電
動機の内最初に商用電源駆動になったポンプ駆動用電動
機を切離すごとく制御し、かつ前記インバータ装置を新
規に追加すべきポンプ駆動用電動機に接続する際はイン
バータ装置を一旦圧力制御系から切離して時定数の小さ
い制御装置による制御に切り換えた後に行い、新規に追
加されたポンプ駆動用電動機が規定の回転数に達した後
に該インバータ装置を該圧力制御系による制御に戻し、
又前記流量減少時に前記商用電源よりポンプ駆動用電動
機を切離す際は前記インバータ装置を一旦圧力制御系か
ら切離して時定数の小さい制御装置による制御に切り換
えた後に行い、該インバータ装置で駆動されるポンプ駆
動用電動機が規定の回転数に達した後に該インバータ装
置を該圧力制御系による制御に戻すごとく制御すること
を特徴とするポンプ制御装置。In a pump control device that controls fluid discharge pressure by driving one of multiple pumps with an inverter device and the other pumps with a commercial power source, each of the multiple pump drive motors is connected to the inverter device and the commercial power source. Equipped with a pressure control system consisting of a switching contactor that enables power to be supplied from either power source, a flow rate comparator that detects the discharge flow rate, and a number control device that controls the operating order of the pumps in a fixed direction. When the flow rate increases, the pump driving electric motor being driven by the inverter device is switched to the commercial power supply drive, and the inverter device is newly installed by the number i control device. It is connected to the pump drive motor that is to be additionally driven, and when the flow rate decreases, the number control device controls the pump drive motor that is the first to be driven by commercial power to be disconnected from among the pump drive motors in operation. , and when connecting the inverter device to a newly added pump drive electric motor, do so after disconnecting the inverter device from the pressure control system and switching to control by a control device with a small time constant. After the drive electric motor reaches a specified rotation speed, the inverter device is returned to control by the pressure control system,
Furthermore, when the pump driving electric motor is disconnected from the commercial power supply when the flow rate decreases, the inverter device is once disconnected from the pressure control system and the control is switched to a control device with a small time constant, and then the pump driving motor is disconnected from the commercial power source. A pump control device characterized in that the inverter device is controlled so as to return to control by the pressure control system after the pump drive electric motor reaches a specified rotational speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15288181U JPS5859392U (en) | 1981-10-16 | 1981-10-16 | pump control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15288181U JPS5859392U (en) | 1981-10-16 | 1981-10-16 | pump control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5859392U true JPS5859392U (en) | 1983-04-21 |
Family
ID=29945518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15288181U Pending JPS5859392U (en) | 1981-10-16 | 1981-10-16 | pump control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5859392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133604A (en) * | 1990-09-20 | 1992-05-07 | Hitachi Kiden Kogyo Ltd | Driving method by linear induction motor |
| JP2010265049A (en) * | 2009-05-12 | 2010-11-25 | Tsubakimoto Chain Co | Linear-motor driven sorting device |
-
1981
- 1981-10-16 JP JP15288181U patent/JPS5859392U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133604A (en) * | 1990-09-20 | 1992-05-07 | Hitachi Kiden Kogyo Ltd | Driving method by linear induction motor |
| JP2010265049A (en) * | 2009-05-12 | 2010-11-25 | Tsubakimoto Chain Co | Linear-motor driven sorting device |
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