JPS5498197A - Alarm indicating circuit - Google Patents
Alarm indicating circuitInfo
- Publication number
- JPS5498197A JPS5498197A JP423778A JP423778A JPS5498197A JP S5498197 A JPS5498197 A JP S5498197A JP 423778 A JP423778 A JP 423778A JP 423778 A JP423778 A JP 423778A JP S5498197 A JPS5498197 A JP S5498197A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- alarm
- contact
- circuit
- energized
- 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.)
- Granted
Links
Landscapes
- Alarm Systems (AREA)
Abstract
PURPOSE: To function the alarm circuit by A/C power supply by passing the alarm input through the normally closed contact of No.1 common relay and functinoning No.2 common raly for timing.
CONSTITUTION: When alarm input S1, one of the alarm circuits connected to A/C power supply, is closed , common relay Xr or timing is exicited through normally closed contacts X1B and XQB1 and common relay XQ is energized. With this contact XQU1 relay XQ is self-retained, relay Xr is de-energized, alarm B functions, relay X1 is energized, contact X1C is switched to A side, relay X1 self-retains and indicator L1 is lighted. At the same time, as contact X1B opens, the excitation circuit of relay X1 is separated from circuit of relay Xr and XQ. When check switch BS is opened under this condition, relay XQ is de-energized and unit B stops. Hereafter, when another alarm input contact is closed, the same operation is repeated. With this circuit constitution, the alarm circuit can be operated by A/C power supply.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53004237A JPS5948436B2 (en) | 1978-01-20 | 1978-01-20 | Alarm display circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53004237A JPS5948436B2 (en) | 1978-01-20 | 1978-01-20 | Alarm display circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5498197A true JPS5498197A (en) | 1979-08-02 |
JPS5948436B2 JPS5948436B2 (en) | 1984-11-26 |
Family
ID=11578932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53004237A Expired JPS5948436B2 (en) | 1978-01-20 | 1978-01-20 | Alarm display circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5948436B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002336102A (en) * | 2001-05-15 | 2002-11-26 | Tanakaya Inc | Insertion-type display frame |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53781U (en) * | 1976-06-23 | 1978-01-06 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53781B2 (en) * | 1973-03-28 | 1978-01-12 |
-
1978
- 1978-01-20 JP JP53004237A patent/JPS5948436B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53781U (en) * | 1976-06-23 | 1978-01-06 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002336102A (en) * | 2001-05-15 | 2002-11-26 | Tanakaya Inc | Insertion-type display frame |
Also Published As
Publication number | Publication date |
---|---|
JPS5948436B2 (en) | 1984-11-26 |
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