Title:
CONTROLLER
Document Type and Number:
Japanese Patent JPS58158701
Kind Code:
A
Abstract:
PURPOSE:To control a controlled system for fail-safe in the abnormity of a controller, by not taking a signal on a signal line as a latch output and forming a periodical signal for an on-driving signal. CONSTITUTION:The signal on the signal line 2 is not taken as the latch output but as the periodical on-driving signal. A signal storage circuit is provided in the controlled system 3, this signal storage circuit is set on with the ondriving signal, keeps the on-state for a prescribed time D after the on-driving signal is relinquised and is set off. Since the on-driving signal is given with the repetition of a timer shorter than the time D, the signal on the signal line 2 is kept to the on-state. When the controller 1 is failed, the on-driving signal is not outputted and the time D is elapsed from the on-driving signal just before, then the signal on the signal line 2 is set off.
Inventors:
OKAMOTO MASAYUKI
Application Number:
JP4040782A
Publication Date:
September 21, 1983
Filing Date:
March 15, 1982
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05B11/16; G05B9/02; (IPC1-7): G05B11/16
Attorney, Agent or Firm:
Shinichi Kusano