JPH0161702U - - Google Patents
Info
- Publication number
- JPH0161702U JPH0161702U JP15534187U JP15534187U JPH0161702U JP H0161702 U JPH0161702 U JP H0161702U JP 15534187 U JP15534187 U JP 15534187U JP 15534187 U JP15534187 U JP 15534187U JP H0161702 U JPH0161702 U JP H0161702U
- Authority
- JP
- Japan
- Prior art keywords
- current position
- power
- input
- detection means
- turned
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Numerical Control (AREA)
- Safety Devices In Control Systems (AREA)
Description
第１図は本考案の概念を示したブロツクダイヤ
グラム。第２図は本考案の具体的の一実施例に係
る数値制御装置と研削盤を示した構成図。第３図
、第４図はＣＰＵの処理手順を示したフローチヤ
ートである。
１０……研削盤、１２，１４……サーボモータ
、１８，１９……アブソリユートエンコーダ、２
０……数値制御装置、２１……ＣＰＵ、２４……
ＲＡＭ、２４１……電源断時現在位置メモリ、２
４２……許容値メモリ、２５……ＲＯＭ、４０…
…電源電圧異常検出回路。
Figure 1 is a block diagram showing the concept of the present invention. FIG. 2 is a configuration diagram showing a numerical control device and a grinding machine according to a specific embodiment of the present invention. FIGS. 3 and 4 are flowcharts showing the processing procedure of the CPU. 10... Grinding machine, 12, 14... Servo motor, 18, 19... Absolute encoder, 2
0... Numerical control device, 21... CPU, 24...
RAM, 241...Current position memory when power is turned off, 2
42...Tolerance value memory, 25...ROM, 40...
...Power supply voltage abnormality detection circuit.
Claims (1)
置検出手段と、 電源が遮断される時には、前記送り軸の現在位
置を前記絶対位置検出手段から入力し、その位置
を電源断時現在位置として記憶する現在位置記憶
手段と、 電源が投入された時には、前記送り軸の現在位
置を電源投入時現在位置として前記絶対位置検出
手段から入力する現在位置入力手段と、 前記現在位置入力手段により入力された電源投
入時現在位置と前記現在位置記憶手段に記憶され
ている電源断時現在位置との偏差を演算する偏差
演算手段と、 前記偏差が所定値よりも大きい場合にはエラー
信号を出力する異常検出手段と を備えたことを特徴とする数値制御装置。[Claims for Utility Model Registration] Absolute position detection means for detecting the absolute position of a feed axis of a machine tool; When power is cut off, the current position of the feed axis is input from the absolute position detection means, and the position current position storage means for storing the current position as the current position when the power is turned off; current position input means that inputs the current position of the feed axis from the absolute position detection means as the current position when the power is turned on when the power is turned on; deviation calculating means for calculating a deviation between the current position at power-on input by the current position input means and the current position at power-off stored in the current position storage means; and when the deviation is larger than a predetermined value; A numerical control device characterized by comprising: abnormality detection means for outputting an error signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15534187U JPH0161702U (en) | 1987-10-09 | 1987-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15534187U JPH0161702U (en) | 1987-10-09 | 1987-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0161702U true JPH0161702U (en) | 1989-04-19 |
Family
ID=31432883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15534187U Pending JPH0161702U (en) | 1987-10-09 | 1987-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0161702U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5079062A (en) * | 1973-11-15 | 1975-06-27 | ||
| JPS5116558A (en) * | 1974-07-31 | 1976-02-09 | Tokyo Shibaura Electric Co | Kogyoyorobotsutono dosahaniseigensochi |
-
1987
- 1987-10-09 JP JP15534187U patent/JPH0161702U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5079062A (en) * | 1973-11-15 | 1975-06-27 | ||
| JPS5116558A (en) * | 1974-07-31 | 1976-02-09 | Tokyo Shibaura Electric Co | Kogyoyorobotsutono dosahaniseigensochi |