I/O TERMINAL RELAY DEVICE

PURPOSE: To make a mounting space for parts small and attain labor saving by using an I/O terminal relay to form a cable between the output terminal of a DO (contact output) card and the I/O terminal relay into two-line system. CONSTITUTION: The output terminal 2 of a DO (contact output) card 1 is c...

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Bibliographic Details
Main Authors MURAOKA NOBUYUKI, YADA TADASHI
Format Patent
LanguageEnglish
Published 23.07.1996
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:PURPOSE: To make a mounting space for parts small and attain labor saving by using an I/O terminal relay to form a cable between the output terminal of a DO (contact output) card and the I/O terminal relay into two-line system. CONSTITUTION: The output terminal 2 of a DO (contact output) card 1 is connected to respective relay coils 5A, 5B of two I/O terminal relays 4A, 4B. The I/O terminal relays 4A, 4B have respective terminals connected to the relay coils 5A, 5B so that the relay coils 5A, 5B can turn the relay contacts 6A, 6B of the relay terminals 5A, 5B ON/OFF. In this way, when the DO contact of the DO card is operated and a signal is output to the output terminal 2, the relay coils 5A, 5B for the I/O terminal relays 4A, 4B are turned ON and the relay contacts 6A, 6B are operated in a pair of two. Two relays are thus operated by DO output to achieve cutoff of both electric circuits.
Bibliography:Application Number: JP19950001120