JPH0313275U - - Google Patents

Description

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

第１図は本考案の一実施例を示す要部回路図、
第２図は同上実施例の遮断機の全体駆動回路図で
ある。 １……昇降制御リレー、２……回路制御器、３
……ブレーキ制御リレー、４……ブレーキ、５…
…電子制御駆動モータ、９……時素リレー、１０
……モータ断リレー。 FIG. 1 is a main circuit diagram showing an embodiment of the present invention.
FIG. 2 is an overall drive circuit diagram of the circuit breaker according to the above embodiment. 1...Elevation control relay, 2...Circuit controller, 3
...Brake control relay, 4...Brake, 5...
...Electronic control drive motor, 9...Time element relay, 10
...Motor disconnection relay.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電子制御駆動モータを使用して遮断桿を昇降駆
動制御する一方、遮断桿下降時にモータへの電源
供給が停止した時に自重で下降して遮断桿が閉状
態となるよう構成された踏切遮断機において、遮
断桿の下降制御指令を発生する下降指令手段と、
該下降指令手段からの指令に基づいて前記モータ
を駆動制御するモータ駆動制御手段と、遮断桿が
所定の下降位置に到達したことを検出する遮断桿
位置検出手段と、前記下降指令が発生してからの
時間を計測するタイマ手段と、該タイマ手段が計
測を開始してから所定時間内に前記遮断桿位置検
出手段からの遮断桿検出信号が発生しないときの
み前記モータへの電源供給を停止する電源遮断手
段とを含んで構成したことを特徴とする踏切遮断
機の安全装置。 In a level crossing breaker that uses an electronically controlled drive motor to control the lifting and lowering of the cutoff bar, and is configured so that when the cutoff bar is lowered and the power supply to the motor is stopped, the cutoff bar is lowered by its own weight and the cutoff bar is in the closed state. , lowering command means for generating a lowering control command for the cutoff rod;
motor drive control means for driving and controlling the motor based on a command from the lowering command means; a cutoff rod position detection means for detecting that the cutoff rod has reached a predetermined lowering position; and a timer means for measuring the time since the start of measurement, and stopping power supply to the motor only when a cutoff rod detection signal is not generated from the cutoff rod position detection means within a predetermined time after the timer means starts measurement. 1. A safety device for a level crossing breaker, characterized in that it is configured to include a power cutoff means.