JPS5621201A - Control unit for operation of plural sets of machine - Google Patents
Control unit for operation of plural sets of machineInfo
- Publication number
- JPS5621201A JPS5621201A JP9502479A JP9502479A JPS5621201A JP S5621201 A JPS5621201 A JP S5621201A JP 9502479 A JP9502479 A JP 9502479A JP 9502479 A JP9502479 A JP 9502479A JP S5621201 A JPS5621201 A JP S5621201A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- circuit
- machine
- stopped
- operations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To make average the number of operations and operating time and to extend the life of all the machines, by storing the operating state of each machine and determining the order of running and stop of the next machine so that the number of operations can be equal.
CONSTITUTION: When all the sets are in operation, the reduction in the load capacity is detected with the low pressure switch 6a, this is fetched to the detection circuit 7 and converted into electric signal and input to the operating circuit 9, and at the same time, the timer circuit 10 is reset and newly started. The memory circuit 8 stores the order of start of operation of each compressor, this is read out to the operation circuit for operation and it is determined which compressor is stopped. This decision is made that when the load capacity is reduced, the compressor starting operation first among the compressors in operation is stopped. When the load is increased, the compressor stopped first is operated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9502479A JPS5621201A (en) | 1979-07-27 | 1979-07-27 | Control unit for operation of plural sets of machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9502479A JPS5621201A (en) | 1979-07-27 | 1979-07-27 | Control unit for operation of plural sets of machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5621201A true JPS5621201A (en) | 1981-02-27 |
Family
ID=14126496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9502479A Pending JPS5621201A (en) | 1979-07-27 | 1979-07-27 | Control unit for operation of plural sets of machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621201A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119003A (en) * | 1982-01-07 | 1983-07-15 | Nagano Keiki Seisakusho:Kk | Controller for number of devices in operation |
US4670348A (en) * | 1984-01-09 | 1987-06-02 | Nippon Petrochemicals Co., Ltd. | Electrical appliance impregnated with a curable impregnant composition |
JPS62231302A (en) * | 1986-03-31 | 1987-10-09 | Mitsubishi Heavy Ind Ltd | Operation control device for power generation plant |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5475019A (en) * | 1977-11-28 | 1979-06-15 | Toshiba Corp | Number of units controller for motor groups |
-
1979
- 1979-07-27 JP JP9502479A patent/JPS5621201A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5475019A (en) * | 1977-11-28 | 1979-06-15 | Toshiba Corp | Number of units controller for motor groups |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119003A (en) * | 1982-01-07 | 1983-07-15 | Nagano Keiki Seisakusho:Kk | Controller for number of devices in operation |
US4670348A (en) * | 1984-01-09 | 1987-06-02 | Nippon Petrochemicals Co., Ltd. | Electrical appliance impregnated with a curable impregnant composition |
JPS62231302A (en) * | 1986-03-31 | 1987-10-09 | Mitsubishi Heavy Ind Ltd | Operation control device for power generation plant |
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