Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2005-05-24
2005-05-24
Gandhi, Jayprakash N. (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S090000, C700S117000, C377S002000
Reexamination Certificate
active
06898479
ABSTRACT:
A method for the failsafe monitoring of the rotational movement of a shaft comprises a first step of picking up a characteristic pulse train with a number of pulses following one another at successive times, the time interval between the pulses is dependent on the rotational movement. A second step determines a monitoring time period and a third step monitors whether an expected pulse of the pulse train occurs within the monitoring time period. Finally, there is a fourth step of generating a control signal when the expected pulse does not occur within the monitoring time period. The mounting time period is repeatedly adapted to the time interval of the pulses during monitoring.
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Sicherheitssteuerungen Systemfamilie PSS, PSS Standardfunktionsbausteine, MBS Exzenterpressen, Version 2.1, Bedienungsanleitung, Sach-Nr. 19 196; pp. 4-108-4-112.
Failsafe Function Blocks, SB 077/SB 078—Monitoring broken shearpins on eccentric presses; Pilz GmbH & Co., one (1) sheet.
Gandhi Jayprakash N.
Pilz GmbH & Co. KG
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