JPS5475555A - Keeping and controlling mode for making and breaking state of power source - Google Patents

Keeping and controlling mode for making and breaking state of power source

Info

Publication number
JPS5475555A
JPS5475555A JP14372977A JP14372977A JPS5475555A JP S5475555 A JPS5475555 A JP S5475555A JP 14372977 A JP14372977 A JP 14372977A JP 14372977 A JP14372977 A JP 14372977A JP S5475555 A JPS5475555 A JP S5475555A
Authority
JP
Japan
Prior art keywords
power source
making
instruments
controller
control line
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
JP14372977A
Other languages
Japanese (ja)
Inventor
Tatsuo Suzuki
Hideo Iwagami
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 Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Priority to JP14372977A priority Critical patent/JPS5475555A/en
Publication of JPS5475555A publication Critical patent/JPS5475555A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To permit maintenance and repairing by separating one of instruments by forming into a loop the control line between the controller to control the making and breaking of power source and plural instruments with independent power source.
CONSTITUTION: When the making and breaking of each instrument 2 to n composing an electronic computer system is commanded by the controller 1, the contact D of the controller 1, besides the usual control line B, and the lowest instrument n connected in series by the control line B are connected together in a loop form by the control line C. Thus, the root to keep the making and breaking state of power source by way of the controller 1 for the instruments 2 to n is doubled, so that, even if one of the instruments 2 to n was separated from the others, the power source making state of the others remains unchanged. Thus, maintenance and repairing can be performed without causing any effect on the other instruments.
COPYRIGHT: (C)1979,JPO&Japio
JP14372977A 1977-11-30 1977-11-30 Keeping and controlling mode for making and breaking state of power source Pending JPS5475555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14372977A JPS5475555A (en) 1977-11-30 1977-11-30 Keeping and controlling mode for making and breaking state of power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14372977A JPS5475555A (en) 1977-11-30 1977-11-30 Keeping and controlling mode for making and breaking state of power source

Publications (1)

Publication Number Publication Date
JPS5475555A true JPS5475555A (en) 1979-06-16

Family

ID=15345637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14372977A Pending JPS5475555A (en) 1977-11-30 1977-11-30 Keeping and controlling mode for making and breaking state of power source

Country Status (1)

Country Link
JP (1) JPS5475555A (en)

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