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Anonymous Poster

High Frequency Spindle and Control Technique Inverter

05/01/2008 7:36 PM

Hi everybody

Does anybody have experiences about high frequency spindle (2000 Hz) and the inverter to drive it ?

I am having trouble to drive a HF spindle 120.000 rpm (2000 Hz) model GMN (Germany) with a Control Technique inverter. After 1200 hz the inverter comes in error and there is different current in the 3 phases of the motor
I will appreciate any comment
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North of 60
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Canada - Member - If there is a way to screw someting up, there is someone to do so! Safety - Hazmat - New Member

Join Date: Mar 2007
Location: Iqaluit, NU. Canada
Posts: 1854
Good Answers: 140
#1

Re: Engineer

05/01/2008 10:56 PM

How many HP is the motor? What current does it draw? What voltage is it? How is it wound? How long are the cables from the inverter to the motor? What type of cables are they? Do you have saturable line reactors across the feeds to the motor? What error do you get?

A little info goes a long way...

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rcapper
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Join Date: Dec 2005
Location: Etats Unis
Posts: 1871
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#2

Re: High Frequency Spindle and Control Technique Inverter

05/03/2008 1:30 AM

Who is the manufacturer of the motor? Do you have a data sheet?

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RHABE
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Join Date: Dec 2006
Location: Germany 49° 26' N, 7° 46' O
Posts: 1950
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#3

Re: High Frequency Spindle and Control Technique Inverter

05/03/2008 3:12 PM

Hi,

ask the GMN company, they have suitable drives.

http://www.gmn.de/front_content.php?changelang=2&idcat=60&idart=183

These spindles are among the finest existing.

If their frequency converter is too expensive then look at Danfoss but make sure you have the 3phase lines from generator to spindle filtered with a suitable inductance.

We use a GMN with a Danfoss but this was set up 8 years ago and much has changed in the converters since then. This one is specified only up to 1 KHz but we use others (Precise) up to 2 KHz and our own experimental airbearing spindles up to 5KHz.

RHABE
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