JPH042994U - - Google Patents
Info
- Publication number
- JPH042994U JPH042994U JP1990041380U JP4138090U JPH042994U JP H042994 U JPH042994 U JP H042994U JP 1990041380 U JP1990041380 U JP 1990041380U JP 4138090 U JP4138090 U JP 4138090U JP H042994 U JPH042994 U JP H042994U
- Authority
- JP
- Japan
- Prior art keywords
- detection section
- value
- detects
- motor
- electric motor
- 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 13
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
Landscapes
- Control Of Electric Motors In General (AREA)
Description
図面は本考案の一実施例の構成図である。
１……電動機、６……速度検出部、７……電圧
検出部、８……電流検出部、９……トルク検出部
、１０……演算回路部、１１……判定回路部、Ｖ
……駆動電圧値、Ｉ……駆動電流値、Ｗ……回転
速度値、Ｔ……出力トルク値、Ｐ……発熱量。
The drawing is a configuration diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Electric motor, 6... Speed detection section, 7... Voltage detection section, 8... Current detection section, 9... Torque detection section, 10... Arithmetic circuit section, 11... Judgment circuit section, V
... Drive voltage value, I... Drive current value, W... Rotation speed value, T... Output torque value, P... Heat generation amount.
Claims (1)
記電動機の駆動電流を検出する電流検出部と、前
記電動機の回転速度を検出する速度検出部と、前
記電動機の出力トルクを検出するトルク検出部と
、前記電圧検出部、前記電流検出部、前記速度検
出部及び前記トルク検出部の出力信号に基いて前
記電動機の発熱量を演算する演算回路部と、該演
算回路部の出力信号に基いて前記電動機の過負荷
状態を判定する判定回路部と、を備え、 前記演算回路部は、駆動電圧値に駆動電流値を
乗算した値から、回転速度値に出力トルク値を乗
算した値を減算することで前記電動機の発熱量を
検出してなることを特徴とする電動機の過負荷検
出装置。[Claims for Utility Model Registration] A voltage detection section that detects the drive voltage of the motor, a current detection section that detects the drive current of the motor, a speed detection section that detects the rotational speed of the motor, and an output of the motor. a torque detection section that detects torque; an arithmetic circuit section that computes the amount of heat generated by the electric motor based on output signals of the voltage detection section, the current detection section, the speed detection section, and the torque detection section; and the arithmetic circuit. a determination circuit unit that determines an overload state of the electric motor based on an output signal of the unit, and the arithmetic circuit unit calculates the rotational speed value and the output torque value from a value obtained by multiplying the drive voltage value by the drive current value. An overload detection device for an electric motor, characterized in that the amount of heat generated by the electric motor is detected by subtracting a value obtained by multiplying .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990041380U JPH042994U (en) | 1990-04-18 | 1990-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990041380U JPH042994U (en) | 1990-04-18 | 1990-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042994U true JPH042994U (en) | 1992-01-10 |
Family
ID=31551997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990041380U Pending JPH042994U (en) | 1990-04-18 | 1990-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042994U (en) |
-
1990
- 1990-04-18 JP JP1990041380U patent/JPH042994U/ja active Pending
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