Drive controlling apparatus

Details Drive controlling apparatus Drive controlling apparatus

1989-05-26

1990-10-23

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

'feelback' systems

318264, 318286, 318603, 318626, G05B 1101

Patent

active

049655027

ABSTRACT:
A drive controlling apparatus for controlling movement of a movable member having a mechanically limited range of movement, comprises a drive device for driving the movable member, a feedback pulse generator for detecting the movement of the movable member and for outputting a number of pulse signals corresponding to an amount of the movement of the movable member, a main timer for measuring the period of the pulse signals, and for outputting a signal when a measured time period coincides with one of a plurality of comparison values, a sub timer for measuring one or more time periods from the start of the drive device to the steady state of the drive device and for changing the plurality of comparison values successively, and a control circuit for stopping the drive device in response to the signal outputted from the main timer.

REFERENCES:
patent: 4468596 (1984-08-01), Kinzl et al.
patent: 4563623 (1986-01-01), Matsuka
patent: 4585981 (1986-04-01), Zintler
patent: 4628234 (1986-12-01), Mizuta et al.
patent: 4641067 (1987-02-01), Iizawa

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