DC Motor Drive Parameterise

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Peter V Participant Join Date: Nov 2011 Posts: 3	DC Motor Drive Parameterise 01/20/2013 11:30 AM
	Dear Friends, I would like to know how to increase the mechanical load capacity 5 to 10% more of dc motor 22kw 380 V, model # DMP160-4M, 160426385, make; ABB, at present motor working only 80% of capacity.The motor has driven through DC drive ABB, model # DCS 500 Part # DCS502B0075-41-212000, in put power;380 V 3 phase, 60 HZ, the drive is working as a constant torque mode, please let me know the parameter setting for incease the mechanical load capacity by 5 to 10% more. Kind regards
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: DC motor drive parameterise 01/20/2013 11:45 AM
	Did you not get the manual? Or, are you just lonely? DCS 500B / DCF 500B DCP 500B - ABB Download Center
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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	#2 Re: DC Motor Drive Parameterise 01/20/2013 10:02 PM
	I can't understand what you are asking for. The DC drive has a CAPACITY of 22kW according to you. That is the capacity of the drive. If it is too small for the motor, you have the wrong drive. A MOTOR will only use the power that it needs to use to do the work you expect from it. You cannot "force" a motor to run at 100% capacity by doing something in the drive. If the motor is running at 80%capacity, that is because the work load on the motor only requires 80% of its capacity. You should be happy with that. I don't see what yhe problem is here. __________________ All I every really wanted to be, was... A LUMBERJACK!.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 Re: DC Motor Drive Parameterise 01/21/2013 9:36 AM
	Electrical load is torque multiplied by angular velocity divided by efficiency. So the only way to increase the load on the motor is to change something mechanical on the thing the motor is driving. On rising above 100% load, the drive needs to disconnect the motor so as to protect it. Altering the mechanical arrangements has no bearing on the parameter settings in the drive, which should remain "as commissioned" so as to protect the motor and the supply cables to a certain extent, though the supply fuses are the final arbiter. In any event, the electrical set-up needs to be in accordance with the local electrical code; BS7671 prevails in the UK. So the question as written is meaningless. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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JRaef (1); lyn (1); PWSlack (1)

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