JPS61113593U - - Google Patents
Info
- Publication number
- JPS61113593U JPS61113593U JP1984194564U JP19456484U JPS61113593U JP S61113593 U JPS61113593 U JP S61113593U JP 1984194564 U JP1984194564 U JP 1984194564U JP 19456484 U JP19456484 U JP 19456484U JP S61113593 U JPS61113593 U JP S61113593U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- signal
- signal output
- outputting
- output means
- 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 3
- 230000005856 abnormality Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図はこの考案の１実施例を示す回路図、第
２図は従来例を示す回路図である。
１……モータ、２……タコジエネレータ、４…
…トランジスタ、６……シユミツトゲート、７…
…パルス数比較器、８……電圧可変型駆動電源、
９……Ｖ／Ｆ変換器、１０……スリツプ制御回路
、１１……周波数可変型駆動電源。
FIG. 1 is a circuit diagram showing one embodiment of this invention, and FIG. 2 is a circuit diagram showing a conventional example. 1...Motor, 2...Tachometer generator, 4...
...Transistor, 6...Schmitt gate, 7...
...Pulse number comparator, 8...Voltage variable drive power supply,
9...V/F converter, 10...Slip control circuit, 11...Variable frequency drive power supply.
Claims (1)
手段の信号から回転速度に対応する信号を出力す
る第１の信号出力手段と、モータの任意の回転速
度における同期速度に対応する信号を出力する第
２の信号出力手段と、上記２つの出力信号を比較
する比較手段とを備えたことを特徴とする回転速
度異常検出装置。 A motor rotation speed detection means, a first signal output means for outputting a signal corresponding to the rotation speed from a signal of the rotation speed detection means, and a second signal output means for outputting a signal corresponding to a synchronous speed at an arbitrary rotation speed of the motor. A rotational speed abnormality detection device comprising: signal output means; and comparison means for comparing the two output signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194564U JPS61113593U (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194564U JPS61113593U (en) | 1984-12-21 | 1984-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61113593U true JPS61113593U (en) | 1986-07-18 |
Family
ID=30752017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984194564U Pending JPS61113593U (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61113593U (en) |
-
1984
- 1984-12-21 JP JP1984194564U patent/JPS61113593U/ja active Pending
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