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THE AMARTURE CURRENT IS SO HIGH

Created by: trannhan8x at: 11/27/2014 3:58 AM (3 Replies)

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11/27/2014 3:58 AM	Rate (0)
trannhan8x Advanced Member Joined: 4/1/2012 Last visit: 8/5/2019 Posts: 28 Rating: (0)	Dear All, My customer use Simoreg DC Master, it's oder code 6RA7085-6DS22-0, it controls DC motor of rubber extruder machine. The normally current ofamatureoutput when full load is 285A. But 1 month ago, this current is 325A, my customer checked mechanical system, it is ok. We try to change other DC motor but this current is so high too. Can you share to me the parameter of this converter to reduce this current

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11/27/2014 4:47 AM	Rate (0)
KSN Platinum Expert Joined: 8/25/2006 Last visit: 2/24/2020 Posts: 1945 Rating: (213)	Hello. You can try to reduce current limit in P171, but check that the drive works as required. Also look at themanual, function diagrams.

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11/27/2014 5:32 AM	Rate (0)
trannhan8x Advanced Member Joined: 4/1/2012 Last visit: 8/5/2019 Posts: 28 Rating: (0)	Thanks KSN, If I reduce P171, will this converter be overcurrent failure? If I use optimizing DC motor function, will this operating current reduce?

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11/27/2014 5:46 AM	Rate (0)
KSN Platinum Expert Joined: 8/25/2006 Last visit: 2/24/2020 Posts: 1945 Rating: (213)	trannhan8x If I reduce P171, will this converter be overcurrent failure? P171 limits the current setpoint. I think that there will not be overcurrent due to reducing P171. trannhan8x If I use optimizing DC motor function, will this operating current reduce? I think earlier the drive already was optimized. If you didn't change the motor/mechanics you need not to optimize again. Try to find the reason of high current.

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