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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE AND FAN FILTER UNIT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/086994
Kind Code:
A1
Abstract:
Provided is a control device for fan filter units or the like. In an emergency, when an anomaly has occurred in a motor or motor control device, the provided control device immediately analyzes the anomaly and performs prompt, situation-appropriate, detailed motor control. In the provided FFU monitoring/control system, which has wireless communication functionality, motors are controlled as follows: an upper-level device (101) is connected to relay stations (102, 103, 104) via a fixed communication cable (107), and each relay station (102, 103, 104) communicates wirelessly with the FFUs (115a-n, 125a-n, 135a-n) in the FFU group (110, 120, 130) managed by that relay station. The upper-level device (101), the relay devices (102, 103, 104), and the communication units in the motor control units for the FFUs are each preset with a unique code, a MAC address, thereby eliminating the task of setting addresses.

Inventors:
TAGUCHI YOSHIYUKI (JP)
KIHARA HAJIME (JP)
IWANO KENJI (JP)
UEMATSU HAJIME (JP)
Application Number:
PCT/JP2011/050283
Publication Date:
July 21, 2011
Filing Date:
January 11, 2011
Export Citation:
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Assignee:
HITACHI IND EQUIPMENT SYS (JP)
TAGUCHI YOSHIYUKI (JP)
KIHARA HAJIME (JP)
IWANO KENJI (JP)
UEMATSU HAJIME (JP)
International Classes:
H02P5/74; H02P29/00
Foreign References:
JPH07243682A1995-09-19
JP2006109609A2006-04-20
JP2000011105A2000-01-14
JP2000099155A2000-04-07
JP2003318921A2003-11-07
JP2000262749A2000-09-26
Attorney, Agent or Firm:
Patent Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (JP)
The first international patent firm of a patent business corporation (JP)
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Claims: