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S120 Set Acceleration Time Not Effective

Created by: loga at: 3/29/2017 9:30 AM (7 Replies)

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3/29/2017 9:30 AM	Rate (1)
loga Bronze Member Joined: 12/29/2012 Last visit: 9/17/2024 Posts: 120 Rating: (15)	Hi to All, I am Using Sinamics S120 Drive with Cu320-2PN Controller. I Configured The Drive-in *Speed Control* Mode.The Problem was, I set the Ramp Up and Ramp Down Time [1120 and 1121] 10 Sec. But When I Give the Speed Set point from 0 Rpm to 1500 Rpm, The Drive Takes Less than 2 Sec Only. Also, I Increased the Ramp Time up to 60 Sec. But for That Also Drive Takes Less than 2 Sec Only. Kindly Help Me to Solve this Issue…….
	Best regards A.Logu
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3/29/2017 10:09 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 10/8/2024 Posts: 4739 Rating: (723)	Is it SERVO or VECTOR? What is value of p1122[0] ?
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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3/29/2017 10:50 AM	Rate (0)
loga Bronze Member Joined: 12/29/2012 Last visit: 9/17/2024 Posts: 120 Rating: (15)	Hi, Thanks for your reply, it is Servo only. 1122[0]=0 Kindly Find the Backup Attachment Brushing.zip (375 Downloads)
	Best regards A.Logu
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3/29/2017 2:07 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 10/8/2024 Posts: 4739 Rating: (723)	I gave a quick look and I couldn't say what might be wrong. Anyhow, try to trace output of the ramp generator and see what's going on there.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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3/30/2017 8:53 AM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 9/30/2024 Posts: 5909 Rating: (806)	Hello, the Profidrive speed setpoint r2050(1) is connected to p1155 “Speed controller speed setpoint” in your project. This parameter is located behind the ramp function generator, so the setpoint change is a sudden jump and the drive is accelerating on the current limit. I would recommend to connect the r2050(1) to p1070 “Main setpoint”. This parameter is located in front of the ramp function generator and the Profidrive setpoint is given as a ramp function to the drive.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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This contribution was helpful to 1 thankful Users loga

3/30/2017 9:11 AM	Rate (0)
loga Bronze Member Joined: 12/29/2012 Last visit: 9/17/2024 Posts: 120 Rating: (15)	Dear Techteam, Thanks For Your reply. Today I Will Check Your Suggestion and Get Back To You
	Best regards A.Logu
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3/30/2017 8:33 PM	Rate (1)
zako_ Gold Member Joined: 5/22/2012 Last visit: 3/24/2022 Posts: 895 Rating: (67)	... the ramp- up and down- times are related to the max. Speed p1082. For example p1082 = 3000 rpm / Ramp up time = 10s and your setpoint is 0 --> 1500rpm it would Need 5s.

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This contribution was helpful to 1 thankful Users loga

3/31/2017 1:49 PM	Rate (0)
loga Bronze Member Joined: 12/29/2012 Last visit: 9/17/2024 Posts: 120 Rating: (15)	Dear Techteam, As per Your Your Suggestion we Have Modified the Parameters. Now Acceleration Time is Ok
	Best regards A.Logu
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