JPH0391097U - - Google Patents
Info
- Publication number
- JPH0391097U JPH0391097U JP1989151222U JP15122289U JPH0391097U JP H0391097 U JPH0391097 U JP H0391097U JP 1989151222 U JP1989151222 U JP 1989151222U JP 15122289 U JP15122289 U JP 15122289U JP H0391097 U JPH0391097 U JP H0391097U
- Authority
- JP
- Japan
- Prior art keywords
- time
- electromagnetic switch
- limited operation
- contact
- electric motor
- 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
- 230000005856 abnormality Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図は従来の電動機運転装置の一例を示す回路図
である。
図において、Ｍは電動機、１１は主回路部、８
８は電磁開閉器、８８ｂは電磁開閉器８８のｂ接
点、８８Ｔは時限タイマー、８８Ｔａは時限タイ
マー８８Ｔのａ接点、Ｙは補助リレーである。な
お、各図中同一符号は同一又は相当部分を示す。
FIG. 1 is a circuit diagram showing an embodiment of this invention, and FIG. 2 is a circuit diagram showing an example of a conventional motor driving device. In the figure, M is a motor, 11 is a main circuit section, and 8
8 is an electromagnetic switch, 88b is a B contact of the electromagnetic switch 88, 88T is a timer, 88Ta is an A contact of the timer 88T, and Y is an auxiliary relay. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
閉器と、 上記電磁開閉器の操作コイルと並列に接続され
、所定の時限を設定された限時動作手段と、 上記電磁開閉器のｂ接点の開路より上記限時動
作手段の限時動作接点の閉路の方が早いときに動
作する、電磁開閉器の異常検出手段と、 を備えた電動機運転装置。[Scope of claim for utility model registration] An electromagnetic switch that opens and closes an electric circuit that supplies power to an electric motor; A time-limited operation means that is connected in parallel with the operating coil of the electromagnetic switch and has a predetermined time limit; An electric motor operating device comprising: abnormality detection means for an electromagnetic switch, which operates when the time-limited operation contact of the time-limited operation means is closed earlier than the B contact of the switch is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151222U JPH0391097U (en) | 1989-12-27 | 1989-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151222U JPH0391097U (en) | 1989-12-27 | 1989-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0391097U true JPH0391097U (en) | 1991-09-17 |
Family
ID=31697530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989151222U Pending JPH0391097U (en) | 1989-12-27 | 1989-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0391097U (en) |
-
1989
- 1989-12-27 JP JP1989151222U patent/JPH0391097U/ja active Pending