Self-checking interlock control system

Details Self-checking interlock control system Self-checking interlock control system

1992-05-08

1994-01-25

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Plural switches

361160, 361192, 361189, 307328, H01H 4722

Patent

active

052818578

ABSTRACT:
A self checking interlock modular control system allows for an unlimited number of interlocks to be connected into a single interlock control circuit. The interlock control system provides a method of determining if the components within each interlock module of the control system function correctly when the individual interlocks are opened and closed. The interlock control system has redundant components to provide a circuit path to insure that the interlock control system will open circuit the output if one of the components fails.

REFERENCES:
patent: Re28822 (1976-05-01), Fritts
patent: 4245271 (1981-01-01), Gwin
patent: 4392176 (1983-07-01), Kneip et al.
patent: 5077631 (1991-12-01), Cleary

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