JPS57128878A - Time switch - Google Patents

Time switch

Info

Publication number
JPS57128878A
JPS57128878A JP56015398A JP1539881A JPS57128878A JP S57128878 A JPS57128878 A JP S57128878A JP 56015398 A JP56015398 A JP 56015398A JP 1539881 A JP1539881 A JP 1539881A JP S57128878 A JPS57128878 A JP S57128878A
Authority
JP
Japan
Prior art keywords
load
switch
prescribed time
discriminate
repair
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
JP56015398A
Other languages
Japanese (ja)
Inventor
Yoshiaki Motoki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56015398A priority Critical patent/JPS57128878A/en
Publication of JPS57128878A publication Critical patent/JPS57128878A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed

Landscapes

  • Electromechanical Clocks (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To discriminate the proficiency of repair and inspection for a load easi ly, by failure display by means of lamps, if the load is not operated for a prescribed time. CONSTITUTION:A load 3 such as draft motor is operated for a prescribed time each specified time interval set at a time switch 1. A switch 4 is closed in response to this operation and a display lamp 7 kepts distinguished via a coincident detection circuit 5. On the other hand, if the load 3 is inoperative for a prescribed time, the switch 4 is kept open and a coincident signal is generated from a circuit 5 to be rest via a reset switch 6, the lamp 7 is illuminated to discriminate the necessity of repair and inspection, allowing to prevent inoperative equipment surely at accident or the like.
JP56015398A 1981-02-03 1981-02-03 Time switch Pending JPS57128878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015398A JPS57128878A (en) 1981-02-03 1981-02-03 Time switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015398A JPS57128878A (en) 1981-02-03 1981-02-03 Time switch

Publications (1)

Publication Number Publication Date
JPS57128878A true JPS57128878A (en) 1982-08-10

Family

ID=11887619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015398A Pending JPS57128878A (en) 1981-02-03 1981-02-03 Time switch

Country Status (1)

Country Link
JP (1) JPS57128878A (en)

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