JPH0241697U - - Google Patents
Info
- Publication number
- JPH0241697U JPH0241697U JP1988120518U JP12051888U JPH0241697U JP H0241697 U JPH0241697 U JP H0241697U JP 1988120518 U JP1988120518 U JP 1988120518U JP 12051888 U JP12051888 U JP 12051888U JP H0241697 U JPH0241697 U JP H0241697U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- power source
- detection means
- drive power
- output
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000819 phase cycle Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Ac Motors In General (AREA)
Description
第１図は空気調和機の圧縮機電動機に対してこ
の考案を適用して構成した一実施例における電動
機の運転制御装置のブロツク図、第２図は上記空
気調和機の構成を示す模式図、第３図は上記電動
機の運転制御装置における電動機運転制御部でな
される制御のフローチヤート図である。
１……電動機、２……駆動電源、３……相順検
出回路（相順検出手段）、４……電動機運転制御
部（逆転防止制御手段）。
FIG. 1 is a block diagram of a motor operation control device in an embodiment in which this invention is applied to a compressor motor of an air conditioner, and FIG. 2 is a schematic diagram showing the configuration of the air conditioner. FIG. 3 is a flowchart of the control performed by the motor operation control section in the motor operation control device. DESCRIPTION OF SYMBOLS 1...Electric motor, 2...Drive power supply, 3...Phase sequence detection circuit (phase sequence detection means), 4...Motor operation control section (reverse rotation prevention control means).
Claims (1)
と、この駆動電源２から出力される３相交流電源
の正相・逆相を検出する相順検出手段３と、電動
機駆動指令信号が入力されると共に上記相順検出
手段３での検出信号が正相状態であるときに上記
駆動電源２からの出力を電動機１に印加させる一
方、上記相順検出手段３で逆相状態が検出された
時に上記駆動電源２からの出力を遮断すると共に
異常表示等の異常処理を行う逆転防止制御手段４
とを設けて成る電動機の運転制御装置であつて、
さらに電源投入後、所定の時間が経過するまでは
上記相順検出手段３での検出信号に基づく制御を
行わない逆相無判定期間を上記逆転防止制御手段
４に設けていることを特徴とする電動機の運転制
御装置。 A drive power supply 2 that outputs three-phase AC power to the motor 1
A phase sequence detection means 3 detects the positive phase and reverse phase of the three-phase AC power source output from the drive power source 2, and a motor drive command signal is input to the phase sequence detection means 3. The output from the drive power source 2 is applied to the motor 1 when the phase is in a normal phase state, while the output from the drive power source 2 is cut off and an abnormality is displayed when the phase order detection means 3 detects a reverse phase state. Reversal prevention control means 4 that handles abnormalities such as
An electric motor operation control device comprising:
Furthermore, the reversal prevention control means 4 is provided with a negative phase non-judgment period in which no control based on the detection signal of the phase sequence detection means 3 is performed until a predetermined time has elapsed after the power is turned on. Electric motor operation control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988120518U JPH0241697U (en) | 1988-09-14 | 1988-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988120518U JPH0241697U (en) | 1988-09-14 | 1988-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241697U true JPH0241697U (en) | 1990-03-22 |
Family
ID=31366701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988120518U Pending JPH0241697U (en) | 1988-09-14 | 1988-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241697U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281726A (en) * | 1986-05-26 | 1987-12-07 | ダイキン工業株式会社 | Reverse phase protector of freezer |
| JPS63209427A (en) * | 1987-02-25 | 1988-08-31 | 株式会社東芝 | Plugging apparatus for ac motor |
-
1988
- 1988-09-14 JP JP1988120518U patent/JPH0241697U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281726A (en) * | 1986-05-26 | 1987-12-07 | ダイキン工業株式会社 | Reverse phase protector of freezer |
| JPS63209427A (en) * | 1987-02-25 | 1988-08-31 | 株式会社東芝 | Plugging apparatus for ac motor |
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