AC DRIVE

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dhiru Active Contributor Join Date: Nov 2007 Location: NOIDA, INDIA Posts: 21	AC DRIVE 12/23/2007 11:59 PM
	i m working with ABB acs 550 ,i have to drive 2 identical motor with this drive ,please tell me ,can i do ID RUN for the motor if yes then how ?
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chaterpilar Power-User Join Date: Aug 2007 Location: Bhopal India Posts: 234 Good Answers: 5	#1 Re: AC DRIVE 12/24/2007 3:53 AM
	Few clarifications... What is the size(capacity).. of the VSD..? What is the size ( hp) of the identical motors..? Do you want to start them together or in cascade ( one after other)..? I am sure you will find these questions relevant..! There are gurus and pundits in this forum but they all need to get more inputs or they will spin in the realm of uncertainty...!! __________________ He must be very ignorant as he answers all the questions he is asked. Voltaire
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dhiru Active Contributor Join Date: Nov 2007 Location: NOIDA, INDIA Posts: 21	#2 In reply to #1 Re: AC DRIVE 12/24/2007 5:20 AM
	thank's for your response the motors are of 22 kw of 40 amp and i have to run them together and the drive is of 100 hp.waiting for reply...
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chaterpilar Power-User Join Date: Aug 2007 Location: Bhopal India Posts: 234 Good Answers: 5	#3 In reply to #2 Re: AC DRIVE 12/24/2007 6:26 AM
	Yes they can be run..provided the load is not high torque like pulverisers grinders..etc. If the drive has been already configured for 1 motor then some parameters like current setting, motor hp, etc...have to be doubled, before starting the motors. Good luck __________________ He must be very ignorant as he answers all the questions he is asked. Voltaire
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Anonymous Poster	#4 Re: AC DRIVE 12/24/2007 8:22 AM
	you have to set acs550 to scalar mode, ID run is prefered with single motor. gsg
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JRaef Guru Join Date: Sep 2006 Location: California, USA, where the Godless live next door to God. Posts: 4665 Good Answers: 804	#5 Re: AC DRIVE 12/24/2007 12:55 PM
	Yes, the VFD cannot accurately identify the motor parameters for vector operation when you have multiple motors. You can only run in Scalar mode (V/Hz). __________________ All I every really wanted to be, was... A LUMBERJACK!.
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Switchman Power-User Join Date: Aug 2007 Location: San Francisco Bay Area Posts: 266 Good Answers: 21	#6 Re: AC DRIVE 12/26/2007 10:19 AM
	Also keep in mind that, since you are running two motors on one drive and must set the drive parameters accordindly, you'll need to provide individual protection for your motors. __________________ Speed doesn't kill. Sudden stops, brick walls, and old ladies in Buicks do.
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Anonymous Poster (1); chaterpilar (2); dhiru (1); JRaef (1); Switchman (1)

You might be interested in: DC Motor Drives, Motor Test Equipment, Motor Repair Services

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