JPS57126288A - Trouble stopping method for motor - Google Patents

Trouble stopping method for motor

Info

Publication number
JPS57126288A
JPS57126288A JP1231581A JP1231581A JPS57126288A JP S57126288 A JPS57126288 A JP S57126288A JP 1231581 A JP1231581 A JP 1231581A JP 1231581 A JP1231581 A JP 1231581A JP S57126288 A JPS57126288 A JP S57126288A
Authority
JP
Japan
Prior art keywords
motor
alarm
signal
command
current
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
Application number
JP1231581A
Other languages
Japanese (ja)
Inventor
Nobuo Fukamachi
Taku Nakanishi
Yoshifumi Gonno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP1231581A priority Critical patent/JPS57126288A/en
Publication of JPS57126288A publication Critical patent/JPS57126288A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection

Landscapes

  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To indicate an alarm and to stop a motor at trouble by inexpensive means by indicating the alarm when a motor current detection signal reaches an alarm level at the overcurrent flowing time and opening an electromagnetic contactor to stop the motor when a breaking level reaches the overcurrent. CONSTITUTION:A current signal for each motor 1 detected via each current transformer 4 and each current converter 6 is inputted to the input unit 7 of a motor scanning device A and is converted into a voltage signal. The BCD code for each motor 1 is sequentially produced at the prescribed times through a span controlling analog controller 8, a multiplexer 9 and a BCD code converting analog/digital converter 10. The BCD code of each motor 1 is compared with an alarm and a breaking value of the setting unit 14 under control of an arithmetic controller 11, and when they reach their values, an alarm command and a breakage command are produced to the signal driver 16 of an indicator 15, an alarm indication signal is outputted to an indicator 17 with the alarm command signal, an electromagnetic contactor 3 is opened by the breakage command signal, and the motor 1 is stopped.
JP1231581A 1981-01-29 1981-01-29 Trouble stopping method for motor Pending JPS57126288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1231581A JPS57126288A (en) 1981-01-29 1981-01-29 Trouble stopping method for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1231581A JPS57126288A (en) 1981-01-29 1981-01-29 Trouble stopping method for motor

Publications (1)

Publication Number Publication Date
JPS57126288A true JPS57126288A (en) 1982-08-05

Family

ID=11801876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1231581A Pending JPS57126288A (en) 1981-01-29 1981-01-29 Trouble stopping method for motor

Country Status (1)

Country Link
JP (1) JPS57126288A (en)

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