JPS5498197A - Alarm indicating circuit - Google Patents

Alarm indicating circuit

Info

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
Application number
JP423778A
Other languages
Japanese (ja)
Other versions
JPS5948436B2 (en
Inventor
Manabu Fujimori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP53004237A priority Critical patent/JPS5948436B2/en
Publication of JPS5498197A publication Critical patent/JPS5498197A/en
Publication of JPS5948436B2 publication Critical patent/JPS5948436B2/en
Expired legal-status Critical Current

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
JP53004237A 1978-01-20 1978-01-20 Alarm display circuit Expired JPS5948436B2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002336102A (en) * 2001-05-15 2002-11-26 Tanakaya Inc Insertion-type display frame

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53781U (en) * 1976-06-23 1978-01-06

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53781B2 (en) * 1973-03-28 1978-01-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53781U (en) * 1976-06-23 1978-01-06

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS52120748A (en) Pulse detection circuit
JPS5498197A (en) Alarm indicating circuit
JPS5544902A (en) Relay life testing system
JPS5647819A (en) Capacitor control circuit
JPS52122455A (en) Detecting system for contact opening and closing abnormality
JPS5417778A (en) Synchronism testing circuit
JPS5374467A (en) Electronic watch
JPS5217762A (en) Monitoring circuit of operating relays condition
JPS5439535A (en) Average value operation circuit
JPS5368451A (en) Electronic oven
JPS5310039A (en) Leak breaker operation indicating device with protective lamp
JPS5416636A (en) Load checking device for emergency
JPS5315051A (en) Chattering absorbing circuit of contacts
JPS5317259A (en) Contactless output relay
JPS5423923A (en) Supervisory unit for motor operation
JPS5334441A (en) Falut processing circuit at single clock occurrence
JPS53143948A (en) Leak circuit breaker
JPS53133349A (en) Terminal control unit for central control unit at fault occurrence time
JPS5341830A (en) Combustion controlling system
JPS5414609A (en) Detection circuit for operation of relay
JPS54133066A (en) Chattering detection circuit of relay circuit
JPS552308A (en) Signal input circuit
JPS5387447A (en) Operation command circuit of elevators
JPS52131312A (en) Control device for electric motor vehicle
JPS5443608A (en) Fault detector for contact signal transmission circuit