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Title:
HYDRAULIC VALVE CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2000055001
Kind Code:
A
Abstract:

To provide a hydraulic valve system to recover a valve even from a stop due to dust to a normal state with minimizing scratches caused on the valve in the worst case.

A hydraulic valve control system operates a valve through a valve control amplifier 5 according to a valve opening command from a cylinder position controller, operates a hydraulic cylinder according to a valve opening, and feeds back the cylinder position detected by a cylinder position detector to the valve control amplifier 5. The valve control amplifier 5 is provided with a valve alarm detector 35, a valve position monitor 37, a valve operation memory 39 and a return action command operation part 41.


Inventors:
Sugano, Kazuhiro
Application Number:
JP1998000224872
Publication Date:
February 22, 2000
Filing Date:
August 07, 1998
Export Citation:
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Assignee:
AMADA ENG CENTER CO LTD
AMADA CO LTD
International Classes:
F15B9/09; (IPC1-7): F15B9/09
Attorney, Agent or Firm:
三好 秀和 (外8名)



 
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