Title:
CONTROL DEVICE OF NUMBER OF PUMPS
Document Type and Number:
Japanese Patent JPS593504
Kind Code:
A
Abstract:
PURPOSE:To equalize an operating time and the number of times of start of each pump, by correcting an operating time of a quiescent pump, when deciding the sequence of an operation. CONSTITUTION:Whether a quiescent pump exists or not is decided, and in case when it is decided that said pump exists, whether its pump can be restarted or not is decided. In case when it can be restarted, whether an operating time integrating value is corrected automatically or not is decided. In case of correcting it automatically, the operating time integrating value except that of the quiescent pump is read, and its mean value is calculated and is saved as an operating time integrating value which is used after restarting the operation. On the other hand, in case when said automatic correction is not executed, the corrected value is decided by a predetermined method. Thereafter, an operating time integrating value memory of the quiescent pump is updated. In this way, the operating time and the number of times of start of each pump can be equalized.
More Like This:
| JPS6143302 | SEQUENCE CONTROLLER |
| JPS58187805 | 【考案の名称】加減速指令回路 |
Inventors:
MATSUOKA HIDEKATSU
Application Number:
JP11175082A
Publication Date:
January 10, 1984
Filing Date:
June 30, 1982
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
G05B19/02; F04B49/02; F04B49/06; G05B11/18; (IPC1-7): G05B11/18; G05B19/02
Attorney, Agent or Firm:
Noriyuki Noriyuki
Next Patent: DIAGNOSING DEVICE FOR CAUSE OF ABNORMALITY IN BOILER