# die aus der Position differenzierten Drehzahl

## English translation: the speed obtained by differentiating the position

 17:15 Oct 14, 2004
German to English translations [PRO]
Tech/Engineering - Engineering (general)
 German term or phrase: die aus der Position differenzierten Drehzahl The status controller can be configured as position controller (_DriveControl_7 = 0) or purely as speed controller (_DriveControl_7 = 1). Als Drehzahlrückführung kann die beobachtete Drehzahl (_DriveControl_7 = 0 / default) oder *die aus der Position differenzierten Drehzahl* verwendet werden. The "die aus der Position differenzierten Drehzahl" section of the sentence has got me totally stumped. What does it mean? The topic is control circuits etc. for a servocontroller. TIA!
 Local time: 15:24
 English translation:the speed obtained by differentiating the position Explanation:Speed is the derivative (mathematical operation) of position, obtained therefore by differentiating the position.--------------------------------------------------Note added at 4 hrs 46 mins (2004-10-14 22:01:37 GMT)--------------------------------------------------Or, slightly less technically: speed is the rate of change of position, and to \"differentiate\" a quantity (in maths and engineering) is to determine its rate of change.
Selected response from:

Oliver Walter
United Kingdom
Local time: 14:24
 Thank you very much! And sorry for the delay in grading the question, it has been one hectic week with many night shifts! 4 KudoZ points were awarded for this answer

Summary of answers provided
4the speed obtained by differentiating the position
 Oliver Walter
4position-related rotational speed
 Dipl.-Ing. Robert Bach

29 mins   confidence:
position-related rotational speed

Explanation:
Not sure what is being turned here.
Consider a turret lathe, for example. You would not want the same rotational speed (rmp) on the outside of a larger workpiece as you would near the axis because the relative cutting speed would be quite different.

 Dipl.-Ing. Robert BachAustriaLocal time: 15:24Specializes in fieldNative speaker of: English, GermanPRO pts in category: 31
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4 hrs   confidence:
the speed obtained by differentiating the position

Explanation:
Speed is the derivative (mathematical operation) of position, obtained therefore by differentiating the position.

--------------------------------------------------
Note added at 4 hrs 46 mins (2004-10-14 22:01:37 GMT)
--------------------------------------------------

Or, slightly less technically: speed is the rate of change of position, and to \"differentiate\" a quantity (in maths and engineering) is to determine its rate of change.

 Oliver WalterUnited KingdomLocal time: 14:24Works in fieldNative speaker of: EnglishPRO pts in category: 48
 Thank you very much! And sorry for the delay in grading the question, it has been one hectic week with many night shifts!
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