JPS5689390A - Monitor for resistance welding - Google Patents
Monitor for resistance weldingInfo
- 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
Links
- 238000003466 welding Methods 0.000 title abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
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
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)
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 |
-
1979
- 1979-12-03 JP JP15666279A patent/JPS5689390A/en active Pending
Cited By (2)
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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