JPS6231848U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による電磁接触器の制御回路の
一実施例を示す回路図、第２図は従来の回路を示
す図である。 １；切換開閉器、２；操作開閉器、３；自動制
御出力接点、４；電磁接触器、４ａ；電磁接触器
ａ接点、４ｂ；電磁接触器ｂ接点、５；抵抗器、
６；補助継電器、６ｂ；補助継電器ｂ接点、７；
補助継電器、７ａ；補助継電器ａ接点、７ｂ；補
助継電器ｂ接点。 FIG. 1 is a circuit diagram showing an embodiment of a control circuit for an electromagnetic contactor according to the present invention, and FIG. 2 is a diagram showing a conventional circuit. 1; switching switch, 2; operating switch, 3; automatic control output contact, 4; electromagnetic contactor, 4a; electromagnetic contactor a contact, 4b; electromagnetic contactor b contact, 5; resistor,
6; Auxiliary relay, 6b; Auxiliary relay b contact, 7;
Auxiliary relay, 7a; auxiliary relay a contact, 7b; auxiliary relay b contact.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御電源の一端にオン操作用の出力接点を介し
て接続され、制御電源の他端に電磁接触器のｂ接
点およびこれと並列接続された保持電流制限抵抗
器を介して接続された電磁接触器の制御コイルを
有する電磁接触器の制御回路において、前記制御
電源の一端と保持電流制限抵抗器との間に補助継
電器を接続し、この補助継電器の復帰を条件に動
作自己保持し、かつ前記出力接点のオフ動作によ
り自己保持が解除されるもう一個の補助継電器を
設け、この補助継電器のｂ接点を電磁接触器の制
御コイルの励磁回路に設けたことを特徴とする電
磁接触器の制御回路。 An electromagnetic contactor connected to one end of the control power supply via an output contact for ON operation, and connected to the other end of the control power supply via the B contact of the electromagnetic contactor and a holding current limiting resistor connected in parallel thereto. In a control circuit for an electromagnetic contactor having a control coil, an auxiliary relay is connected between one end of the control power source and a holding current limiting resistor, and the operation is self-maintained on the condition that the auxiliary relay returns, and the output A control circuit for an electromagnetic contactor, characterized in that another auxiliary relay whose self-holding is released by turning off the contact is provided, and the b contact of this auxiliary relay is provided in the excitation circuit of the control coil of the electromagnetic contactor.