JPS57152003A - Power failure countermeasure device - Google Patents

Power failure countermeasure device

Info

Publication number
JPS57152003A
JPS57152003A JP3817181A JP3817181A JPS57152003A JP S57152003 A JPS57152003 A JP S57152003A JP 3817181 A JP3817181 A JP 3817181A JP 3817181 A JP3817181 A JP 3817181A JP S57152003 A JPS57152003 A JP S57152003A
Authority
JP
Japan
Prior art keywords
circuit
solenoids
power supply
control
signal
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
JP3817181A
Other languages
Japanese (ja)
Inventor
Norihisa Sagawa
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co 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 Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP3817181A priority Critical patent/JPS57152003A/en
Publication of JPS57152003A publication Critical patent/JPS57152003A/en
Pending legal-status Critical Current

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  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE: To simplify the circuit constitution, by applying an inverse signal to a pushing operation solenoid and a pulling operation solenoid of a double-acting type air cylinder and interrupting a voltage to the respective solenoids when a power supply changes from on to off state.
CONSTITUTION: The operating procedure and control of a device are stored in a storage circuit 2 and data can be stored even during power failure with a backup power supply 23. The instruction from the circuit 2 can control an input circuit 1 and an output circuit 4 of a control circuit 3 and the entire timing. An inverse signal is applied to pushing operation solenoids 71 and 73 and pulling operation solenoids 72 and 74 of a double-action type air cylinder via inverters 56, 59, 55 and 58. Further, a control circuit consisting of inverters 51W53 and a relays 75 which controls the voltages applied to the solenoids 71W75 is provided. When a power supply turns off to on, the relay 75 is deenergized and the contact is opened so that no voltage can ba applied to the solenoids 71W74, and a signal 9 is outputted from the circuit 4 so that the relay 75 is activated when an initial indication signal 13 is detected.
COPYRIGHT: (C)1982,JPO&Japio
JP3817181A 1981-03-16 1981-03-16 Power failure countermeasure device Pending JPS57152003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3817181A JPS57152003A (en) 1981-03-16 1981-03-16 Power failure countermeasure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3817181A JPS57152003A (en) 1981-03-16 1981-03-16 Power failure countermeasure device

Publications (1)

Publication Number Publication Date
JPS57152003A true JPS57152003A (en) 1982-09-20

Family

ID=12517939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3817181A Pending JPS57152003A (en) 1981-03-16 1981-03-16 Power failure countermeasure device

Country Status (1)

Country Link
JP (1) JPS57152003A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5599602A (en) * 1979-01-22 1980-07-29 Omron Tateisi Electronics Co Process advance type sequence controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5599602A (en) * 1979-01-22 1980-07-29 Omron Tateisi Electronics Co Process advance type sequence controller

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