Safety Control of Power Press by Using Fail-Safe Multiple-Valued Logic

Masayoshi SAKAI; Masakazu KATO; Koichi FUTSUHARA; Masao MUKAIDONO

Safety Control of Power Press by Using Fail-Safe Multiple-Valued Logic

Masayoshi SAKAI, Masakazu KATO, Koichi FUTSUHARA, Masao MUKAIDONO

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This paper first clarifies the logic construction of safety control for the operation of a power press and then describes fail-safe dual two-rail system signal processing and fail-safe multiple-valued logic operations as methods for achieving this control as a fail-safe system. It finally shows a circuit for generating fail-safe two-rail run button signals based on ternary logic for concrete operation of the power press and an operation control circuit for confirming brake performance for each cycle of slide operation by using the run button signals. The control circuit uses such multiple-valued logic operations that binary logic signals that do not erroneously go logic 1 are added to a multiple-valued logic signal and the multiple-valued logic signal is converted to a binary logic signal that does not erroneously go logic 1 by a threshold operation.

Publication: IEICE TRANSACTIONS on Information Vol.E76-D No.5 pp.577-585

Publication Date: 1993/05/25

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Type of Manuscript: Special Section PAPER (Special Issue on Multiple-Valued Logic)

Category: Fail-Safe/Fault Tolerant

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Masayoshi SAKAI, Masakazu KATO, Koichi FUTSUHARA, Masao MUKAIDONO, "Safety Control of Power Press by Using Fail-Safe Multiple-Valued Logic" in IEICE TRANSACTIONS on Information, vol. E76-D, no. 5, pp. 577-585, May 1993, doi: .
Abstract: This paper first clarifies the logic construction of safety control for the operation of a power press and then describes fail-safe dual two-rail system signal processing and fail-safe multiple-valued logic operations as methods for achieving this control as a fail-safe system. It finally shows a circuit for generating fail-safe two-rail run button signals based on ternary logic for concrete operation of the power press and an operation control circuit for confirming brake performance for each cycle of slide operation by using the run button signals. The control circuit uses such multiple-valued logic operations that binary logic signals that do not erroneously go logic 1 are added to a multiple-valued logic signal and the multiple-valued logic signal is converted to a binary logic signal that does not erroneously go logic 1 by a threshold operation.
URL: https://globals.ieice.org/en_transactions/information/10.1587/e76-d_5_577/_p

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@ARTICLE{e76-d_5_577,
author={Masayoshi SAKAI, Masakazu KATO, Koichi FUTSUHARA, Masao MUKAIDONO, },
journal={IEICE TRANSACTIONS on Information},
title={Safety Control of Power Press by Using Fail-Safe Multiple-Valued Logic},
year={1993},
volume={E76-D},
number={5},
pages={577-585},
abstract={This paper first clarifies the logic construction of safety control for the operation of a power press and then describes fail-safe dual two-rail system signal processing and fail-safe multiple-valued logic operations as methods for achieving this control as a fail-safe system. It finally shows a circuit for generating fail-safe two-rail run button signals based on ternary logic for concrete operation of the power press and an operation control circuit for confirming brake performance for each cycle of slide operation by using the run button signals. The control circuit uses such multiple-valued logic operations that binary logic signals that do not erroneously go logic 1 are added to a multiple-valued logic signal and the multiple-valued logic signal is converted to a binary logic signal that does not erroneously go logic 1 by a threshold operation.},
keywords={},
doi={},
ISSN={},
month={May},}

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TY - JOUR
TI - Safety Control of Power Press by Using Fail-Safe Multiple-Valued Logic
T2 - IEICE TRANSACTIONS on Information
SP - 577
EP - 585
AU - Masayoshi SAKAI
AU - Masakazu KATO
AU - Koichi FUTSUHARA
AU - Masao MUKAIDONO
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E76-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 1993
AB - This paper first clarifies the logic construction of safety control for the operation of a power press and then describes fail-safe dual two-rail system signal processing and fail-safe multiple-valued logic operations as methods for achieving this control as a fail-safe system. It finally shows a circuit for generating fail-safe two-rail run button signals based on ternary logic for concrete operation of the power press and an operation control circuit for confirming brake performance for each cycle of slide operation by using the run button signals. The control circuit uses such multiple-valued logic operations that binary logic signals that do not erroneously go logic 1 are added to a multiple-valued logic signal and the multiple-valued logic signal is converted to a binary logic signal that does not erroneously go logic 1 by a threshold operation.
ER -