SPEED TYPE OUTPUT CONTROLLER

Japanese Patent JPH0225901

A

PURPOSE:To omit the control of a time element that is performed via a transmission line by integrating once the results of PID arithmetic (speed type) to send this integration value to the outside via the transmission line and restoring the speed type via a differentiating circuit to convert this speed type into the pulse width. CONSTITUTION:A PID speed type control arithmetic part 4 calculates the speed type control output DELTAMV based on the PID control algorithm and outputs it. An integration circuit 5 integrates and outputs the output DELTAMV of the part 4. A differentiation circuit 9 differentiates the position type control output MV received from a reception circuit to obtain the output DELTAMV as the changing component of the output MV obtained per arithmetic cycle. This output data DELTAMV is sent to a pulse width converting circuit 10. The circuit 10 converts the output DELTAMV into a time series signal meaning the pulse width and selects an open or close direction pulse according to the codes (+, -) of the output DELTAMV. Thus it is not required to entrust a transmission part with a time element. Then an operating signal of the correct pulse width can be outputted.

TEJIMA KEIZO

JP17641788A

January 29, 1990

July 15, 1988

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FUJI ELECTRIC CO LTD
FUJI FACOM CORP

G05B11/26; G05B11/36; (IPC1-7): G05B11/26; G05B11/36

Iwao Yamaguchi

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