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Patent Searching and Data


Title:
MOTOR DRIVER
Document Type and Number:
Japanese Patent JP2002027775
Kind Code:
A
Abstract:

To provide a motor driver which makes it possible to grasp both a present value and a set value of the rotational frequency of a motor by a common display means easily.

A motor driver 1 is fitted with a thumbscrew 2 for setting a rotational frequency of the motor, an up key SU and a down key SD for finely adjusting the rotational frequency set by the thumbscrew 2 for setting a rotational frequency of the motor, an up key SU and a down key SD for finely adjusting the rotational frequency set by the setting thumbscrew 2, and a display 7. When the thumbscrew 2 is rotated, a set value for the rotational frequency of the motor is displayed in the numeric-character displaying portion 71 of the display 7 by half of the maximum brightness. If the thumbscrew 2 is not rotated for a specified time, the present value of the rotational frequency of the motor is displayed with the maximum brightness in the display portion 71.


Inventors:
Yuguchi, Tasuku
Horikawa, Seiji
Okamoto, Junji
Application Number:
JP2000000201071
Publication Date:
January 25, 2002
Filing Date:
July 03, 2000
Export Citation:
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Assignee:
KEYENCE CORP
International Classes:
H02P29/00; (IPC1-7): H02P5/00
Attorney, Agent or Firm:
福島 祥人 (外1名)