JPS5689390A - Monitor for resistance welding - Google Patents

Monitor for resistance welding

Info

Publication number
JPS5689390A
JPS5689390A JP15666279A JP15666279A JPS5689390A JP S5689390 A JPS5689390 A JP S5689390A JP 15666279 A JP15666279 A JP 15666279A JP 15666279 A JP15666279 A JP 15666279A JP S5689390 A JPS5689390 A JP S5689390A
Authority
JP
Japan
Prior art keywords
display device
displayed
circuit
converter
alarm
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
Application number
JP15666279A
Other languages
Japanese (ja)
Inventor
Yukihiro Miyazaki
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.)
Dengensha Toa Co Ltd
Original Assignee
Dengensha Manufacturing 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 Dengensha Manufacturing Co Ltd filed Critical Dengensha Manufacturing Co Ltd
Priority to JP15666279A priority Critical patent/JPS5689390A/en
Publication of JPS5689390A publication Critical patent/JPS5689390A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: A titled monitor of simplified construction by providing the predetermined 1st and 2nd A/D converters and comparing the outputs thereof, to make alarm setting easy and building in a predetermined timing circuit.
CONSTITUTION: The current flowed to the primary side of a welding transformer 1 is detected with a detector 5, and the output voltage thereof is held in a holding circuit 10 via a waveform shaping circuit 6 and a full wave rectifying circuit 8; at the same time, the voltage value thereof is converted by the 1st A/D converter 11 to a digital value which is then displayed in a display device 12. On the other hand, the value set with an alarm level setter 13 is displayed in a display device 16 via the 2ns A/D converter 14. The number of said display device 12 receiving the current supply start signal and current supply end signal from a timing circuit 17 is compared with the number of the display device 16, and when the number of the display device 12 is below the number displayed in the display device 16, an alarm is emitted and the interruption of welding current or the like is carried out.
COPYRIGHT: (C)1981,JPO&Japio
JP15666279A 1979-12-03 1979-12-03 Monitor for resistance welding Pending JPS5689390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15666279A JPS5689390A (en) 1979-12-03 1979-12-03 Monitor for resistance welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15666279A JPS5689390A (en) 1979-12-03 1979-12-03 Monitor for resistance welding

Publications (1)

Publication Number Publication Date
JPS5689390A true JPS5689390A (en) 1981-07-20

Family

ID=15632552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15666279A Pending JPS5689390A (en) 1979-12-03 1979-12-03 Monitor for resistance welding

Country Status (1)

Country Link
JP (1) JPS5689390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6384774A (en) * 1986-09-26 1988-04-15 Daihatsu Motor Co Ltd Short circuit detector for secondary cable for welder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6384774A (en) * 1986-09-26 1988-04-15 Daihatsu Motor Co Ltd Short circuit detector for secondary cable for welder
JPH0411314B2 (en) * 1986-09-26 1992-02-28

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