Controller of man conveyor

申请号 JP23868383 申请日 1983-12-17 公开(公告)号 JPS60131082A 公开(公告)日 1985-07-12
申请人 Mitsubishi Electric Corp; 发明人 TERASAWA HIROYASU; IWATA AKIO;
摘要 PURPOSE:To prevent a brake shoe and a motor form burning out by stopping the energization of the motor when the motor current increases at the prescribed value or higher. CONSTITUTION:A drive motor M of a man conveyor is connected through contacts 1a-1c or 2a-2c with AC power sources R, S, T, and normally or reversely rotated. A current to the motor M is detected by a current transformer 8, and converted into a voltage by a current/voltage converter 9. When the output voltage value of the converter 9 increases at the prescribed value or higher, contacts 1a-1c or 2a-2c are opened by a voltage relay 10, the energization of the motor M is interrupted, and a brake due to an electromagnetic brake is simultaneously applied.
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