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vfd for 50 hp motor - what brand? vfd for 50 hp motor - what brand?
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Old 11-01-2011, 06:33 PM   #21
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Baldor or Allen-Bradley is good choice; I work with many brands. Lenze/AC-Tech is no good. I agree the rare brands can be ok or not.

Have you any experience with Bardac?

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Old 11-01-2011, 07:45 PM   #22
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What kind of network is going to be controlling the vfd ( profibus , Ethernet , device net ) ? Plc / pc controlled or hardwired ?Some brands are better for different networks than others.
Last edited by Licensedelectrician; 11-01-2011 at 07:48 PM.
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Old 11-05-2011, 08:34 PM   #23
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Old 12-16-2011, 10:44 PM   #24
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YASKAWA............I own 5, soon to be 6 and they are considered the cream of the crop.....



B,
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Old 01-20-2012, 01:57 PM   #25
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I'm surprised that nobody recommended ABB. My impression was that ABB makes better drives than most major manufacturers, even better than Yaskawa.

ACS550-U1-143A-2 is a wall mounted 50HP drive that I have in use. I can certainly recommend that. I'm not sure about pricing though.
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Old 01-21-2012, 03:53 AM   #26
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Default Vfd
There are many VFD's brands in the market. Better go with low Harmonics
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Old 01-21-2012, 09:52 PM   #27
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Baldor bottoms down the best on the market, easy to program all the bells and whistles.
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Old 01-23-2012, 12:41 PM   #28
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Quote:
Originally Posted by Runion Energy View Post
Baldor bottoms down the best on the market, easy to program all the bells and whistles.
Which series? I liked the "18H". But it was a closed loop system. Today many drives are "sensor less vector" out of the box.
The "15H" was the standard inverter and the "18H" was the torque control, with encoder feedback. Full torque at zero speed. They also built a Regen control. I too was impressed with the very easy programming in real English. No codes. Only words displayed.
I used to troubleshoot these drives on the phone. And Baldor is very easy to work with. The Atlanta office specifically.
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Old 01-23-2012, 12:52 PM   #29
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You could use either one of these should work Series H2 AC, VS1SP Baldor brands I use them at various plants.
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Old 01-23-2012, 08:02 PM   #30
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I just today install a VS1SP for 75 hp. Control wiring is tomorrow, I will post pictures.
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Old 01-25-2012, 10:09 AM   #31
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Baldor is ABB now. ABB bought them last year.
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Old 01-25-2012, 04:12 PM   #32
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Old 04-26-2012, 12:18 AM   #33
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http://www.ctiautomation.net/AC-Tech-Enclosed-Micro-Drives.htm

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