Servo motor monitoring apparatus

Details Servo motor monitoring apparatus Servo motor monitoring apparatus

2007-06-26

2011-12-06

Masih, Karen (Department: 2837)

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

C318S400200, C318S400350

Reexamination Certificate

active

08072173

ABSTRACT:
Disclosed a servo motor monitoring apparatus including: a magnetic pole position calculating member to extract a magnetic pole position signal of the servo motor from a motor drive line connected to the servo motor; a present position signal inputting member to receive an input of a present position signal from the position detecting member attached to the servo motor; and a monitoring member to compare operations of the servo motor based on two types of signals of the magnetic pole position signal and the present position signal of the servo motor, and to output a stop instruction signal for cutting off a power supply to the servo motor when detecting disagreement.

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Translation of Notification of Reasons of Refusal dated Aug. 3, 2010.
International Search Report corresponding to PCT/JP2007/062784 with an English language translation thereof.
Translation of Decision of Refusal issued in the Japanese Patent Application No. 2006-189599 dated Jun. 28, 2011.

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