Title:
ARTICLE DRIVE CONTROLLER
Document Type and Number:
Japanese Patent JPS6087684
Kind Code:
A
Abstract:
PURPOSE:To prevent a drive system from running away by counting the output signal of operating amount detecting means during the prescribed time by energizing a drive source, comparing the result with the prescribed value to discriminate the presence or absence of a malfunction, thereby detecting the malfunction of an article drive controller. CONSTITUTION:When a microcomputer CPU outputs control data, an error signal level is generated at the output of a differential amplifier AM1, thereby energizing a DC servo motor M7. When the motor M7 starts rotating, a pulse signal is presented at the output terminal of a photosensor PS, and the signal level in response to the actual speed is applied to the amplifier AM1. Thus, the signal level outputted from the AM1 becomes smaller in the amount of the speed of the motor M7, and when the speed of the motor M7 coincides with the target speed, it becomes zero. In this manner, the motor M7 is controlled to the target speed.
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Inventors:
HIGUCHI MASAMI
Application Number:
JP19492683A
Publication Date:
May 17, 1985
Filing Date:
October 18, 1983
Export Citation:
Assignee:
RICOH KK
International Classes:
H02P7/288; H02P1/18; H02P29/00; (IPC1-7): H02P5/00; H02P5/168
Attorney, Agent or Firm:
Nobuoki Sugi