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use Logo 12/24RC modul logic for starting 2 asynchronous motors 20 HP, 3 phases 380 V - ramp function

Created by: Waldo at: 8/29/2008 9:13 PM (4 Replies)

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8/29/2008 9:13 PM	Rate (0)
Waldo Posts: 5 Rating: (0)	Hi , I'm trying to use Logo 12/24RC modul logic for starting 2 asynchronous motors 20 HP, 3 phases 380 V and I was thinking to use some kind of ramp function, I don't know ... Any comments will be appreciated. Thanks.
Waldo Posts: 5 Rating: (0)	Last edited by: CS Moderator at: 8/29/2008 11:59 PM new subject after importing to the conferences
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8/30/2008 3:03 AM	Rate (0)
rosa Posts: 191 Rating: (58)	Hi!! i imagine that you have a variable speed drive.. there is a special function for analog outputs, ( RAMP )but the analog outputs available are only 0-10V... so your drive must have a 0-10V analog input... ¿ do you have Soft Comfort ?? take a look at the ramp function... ROSA
rosa Posts: 191 Rating: (58)
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8/30/2008 8:29 PM	Rate (0)
Waldo Posts: 5 Rating: (0)	hi Rosa. You're riht, I have Logo soft comfort, I trying to use the RAMP function of LOGO soft comfort instead of using Star and Delta starting. Could You do mefavor, explain in a diagram . Thanks Rosa
Waldo Posts: 5 Rating: (0)
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9/1/2008 5:31 PM	Rate (0)
rosa Posts: 191 Rating: (58)	Hi Waldo!! if you only want to have Start/stop ramps you can use Softstarters if you want accurate control of the ramp/speed of your motor you need a variable speed drive to give power to the motor.. ¿ do you have a Drive ?? most drives have built in ramp functions, please explain your application to be able to give you a better advice. ROSA
rosa Posts: 191 Rating: (58)
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9/10/2008 9:13 AM	Rate (0)
Helmut_13 Posts: 2930 Rating: (432)	Hi, here two simple examples for the Ramp function. You can connect your inverter to AQ1. I hope this helps. Regards Helmut Attachment Ramp both.zip (704 Downloads)
Helmut_13 Posts: 2930 Rating: (432)
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