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S120 CU320 ActualPosition Direction

Created by: Reka at: 8/3/2009 10:52 AM (6 Replies)

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8/3/2009 10:52 AM	Rate (0)
Reka Regular Member Joined: 11/6/2008 Last visit: 4/24/2023 Posts: 7 Rating: (0)	Hi every one, I use servo motor whith absolute encoder. For clockwise turn the actual position value is raising. How I can do for clockwise turn the actual position to be decreasing without changing of phases of the motor. From p410[x].1 I am inverting actual position value, but then also I have to change the phases of motor supply. Is there any way change the increasing and decreising the actual position value for clockwise turn without changing phases of motor supply. Best regards,

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8/3/2009 2:40 PM	Rate (0)
Eyezerman Experienced Member Joined: 1/18/2008 Last visit: 1/13/2021 Posts: 10 Rating: (0)	This is for a D445 controller, but I think it should apply to the CU320. In the axes there are a couple of parameters that can be selected for both = yes or no that should swap direction. One is for the feedbackand the other for the drive commanded setpoint. Following is the ST code to set them. to_Axis.setconfigdata.TypeofAxis.NumberOfEncoders.Encoder_1. InversCountDirection.encoderFeedbackPolarity := yes; to_Axis.setconfigdata.TypeofAxis.SetpointDriverInfo.InvertSetpoint.invSetpoint := yes;

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8/3/2009 7:07 PM	Rate (0)
Reka Regular Member Joined: 11/6/2008 Last visit: 4/24/2023 Posts: 7 Rating: (0)	Eyezerman thankyou for replying, There are two parameters that can be selected: p410[x].0 which invert speed actual value and p410[x].1 inverting actual position value, but I could not found the parameter for inverting the count of direction Best regards,

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8/6/2009 11:02 AM	Rate (0)
Sergio76 Member Joined: 2/28/2008 Last visit: 11/27/2017 Posts: 7 Rating: (0)	Hello, You can use thePM 1821.

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8/6/2009 7:19 PM	Rate (0)
Bhaskaran Posts: 107 Rating: (12)	The servo motor is not the same as Induction motor. Please don't try to change the direction of the motor by swapping 2 phases of the servo motor leads. This can be fatal.
Bhaskaran Posts: 107 Rating: (12)
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8/7/2009 9:40 AM	Rate (0)
Reka Regular Member Joined: 11/6/2008 Last visit: 4/24/2023 Posts: 7 Rating: (0)	Thankyou very much Sergio.PM1821 was the right parameter wich I need. Thankyou Bhaskaran also for caution. Best regards,

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8/28/2009 4:16 AM	Rate (1)
Dreamer of NZ Experienced Member Joined: 10/15/2008 Last visit: 4/6/2022 Posts: 35 Rating: (1)	Hi: I think I have ever a similar quesiton with you. Therefore if you want to change direction of motor, I think you can configure paramter of driver of SINAMICS. You canchange p1821, but you have to set p10=3( motor commision) before you change p1821. I hope this is helpful to you.

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This contribution was helpful to 2 thankful Users Reka Sava

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