Title:
CAPACITOR CHARGING PERFORMANCE MONITORING SYSTEM OF PRODUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/038873
Kind Code:
A1
Abstract:
According to the present invention, a system (55) for monitoring the charging performance of a capacitor (48) in an electric circuit that is mounted on a production machine (10) installed in a production line is provided with a charging voltage detection unit (57) that detects a charging voltage of the capacitor. A control unit (40) of the production machine measures, as a charging time, on the basis of the charging voltage of the capacitor detected by the charging voltage detection unit (57), the time from the start of charging until the charging voltage of the capacitor reaches a predetermined charging completion determination voltage, which can be determined as the completion of the charging, determines whether or not the capacitor is deteriorated on the basis of whether or not the measured charging time is equal to or less than a predetermined deterioration determination threshold value, and warns a worker with a display or voice when it is determined that the capacitor is deteriorated.
Inventors:
OKI HIDEAKI (JP)
OSAKI SATOSHI (JP)
OSAKI SATOSHI (JP)
Application Number:
PCT/JP2017/030263
Publication Date:
February 28, 2019
Filing Date:
August 24, 2017
Export Citation:
Assignee:
FUJI CORP (JP)
International Classes:
G01R31/00
Domestic Patent References:
| WO2014076836A1 | 2014-05-22 |
Foreign References:
| JP2004344946A | 2004-12-09 | |||
| JP2007219148A | 2007-08-30 | |||
| JP2008017613A | 2008-01-24 | |||
| JP2006119350A | 2006-05-11 |
Other References:
See also references of EP 3674718A4
Attorney, Agent or Firm:
KAKO, Muneo (JP)
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