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Speed Control With Encoder

Created by: ehuamanib at: 2/23/2017 3:41 AM (12 Replies)

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2/23/2017 3:41 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Good Morning, We are configuring an S120 drive, for a three-phase motor of 1000 HP, we are using the encoder speed control method. The speed control is perfect when setting a reference speed, the problem occurs when the motor is to stop, stops as shown in the attached image. It has been done: - Identification of engine parameters - Optimization of the regulator. The control parameters kp, kd have been varied, thus varying the response, but a smooth stop is not obtained. Thank you very much for the help or guidance that you could give me. Thank you Attachment IMG_7296.JPG (106 Downloads)
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2/23/2017 3:45 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	By zooming in on the control response, a stop with over impulse is observed. Attachment IMG_7295.JPG (84 Downloads)
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2/23/2017 4:20 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Speed controller Attachment REGULADOR VEL.jpg (102 Downloads)
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2/23/2017 4:21 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Current controller Attachment REGULADOR I.jpg (75 Downloads)
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2/23/2017 4:22 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Encoder configuration Attachment ENCODER.jpg (95 Downloads)
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2/23/2017 4:22 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Generator ramp configuration Attachment GENERADOR RAMPA.jpg (76 Downloads)
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2/23/2017 4:48 AM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Video
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2/23/2017 10:34 AM	Rate (0)
PISCEAN 2010 Diamond Member Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877)	How or which OFF command is applied to stop motor? In video do not observe any problem. What problem you are facing? Is it triping or any abnormal sound is heard?

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This contribution was helpful to 1 thankful Users Naim1292000

2/23/2017 2:46 PM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	Hello, The problem is that the motor upon receiving the stop command stops with an over impulse, and presents a response as seen in the attached image. Attachment PROBLEM.jpg (83 Downloads)
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2/23/2017 2:56 PM	Rate (0)
ehuamanib Posts: 13 Rating: (0)	In the video it is observed that the motor when stopped makes a return in the direction opposite to the rotation of about 20 degrees and then only stops completely. The application requires that the engine stop is fast and without return in the direction opposite to the turn. Attachment SOBRE IMPULSE STOP.JPG (76 Downloads)
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