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Sinamics V20 potentiometer zero balance

Created by: bastl.b at: 5/17/2022 6:01 PM (3 Replies)

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5/17/2022 6:01 PM	Rate (0)
bastl.b Member Joined: 5/17/2022 Last visit: 5/20/2022 Posts: 2 Rating: (0)	Hello, I have configured my 6SL3210-5BE24-0UV0 with cn002 like a elevator (mountain railway) application. Now if I have the potentiometer at 0 (stop), the wagon moves jet a little, so the motor turns. How can I adjust the cable resistance at AI1 of my distance control to zero , so that the motor does not turn? Is there a AI1 zero voltage parameter? Many thanks!

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5/18/2022 10:20 AM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/12/2024 Posts: 5969 Rating: (820)	Hello bastl.b, with parameters p0757 to p0760 you can define the scaling for the analog input. In p0757 you enter the voltage which should be processed as 0% (p0758). You can also define a deadband for the analog input with p0761. You can find detailed information about those parameters in the SINAMICS V20 operating instructions manual https://support.industry.siemens.com/cs/ww/en/view/109799545
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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5/18/2022 1:34 PM	Rate (0)
bastl.b Member Joined: 5/17/2022 Last visit: 5/20/2022 Posts: 2 Rating: (0)	Perfect! It is about 10 m cable 0.15 mm². I used deadband P0761 with 0.2V now and let the lower voltage P0757 at 0V, because I don't know if P0757 is added to P0761. Deadband !?, I wouldn't have never searched for this. Thanks!
	Last edited by: bastl.b at: 05/18/2022 13:36:58
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6/3/2022 11:19 AM	Rate (0)
Jack0004 Advanced Member Joined: 12/16/2021 Last visit: 8/22/2023 Posts: 126 Rating: (2)	The following example produces a 2.5 V to 7.5 V analog input (-50 Hz to +50 Hz) with center zero and a "holding point" 0.2 V wide (0.1 V to each side of center, analog input value 0 V to 10 V, -50 Hz to +50 Hz): • P2000 = 50 Hz • P0759 = 7.5 V & P0760 = 75 % • P0757 = 2.5 V & P0758 = 25 % • P0761 = 0.2 V [ Per side ] considering for each side or single side • P0756 = 0 or 1 Value of P0757 - can be in range between -20 to 20 P0761 = 0.2 each side , Separate value to assign for this parameter bastl.b Perfect! It is about 10 m cable 0.15 mm². I used deadband P0761 with 0.2V now and let the lower voltage P0757 at 0V, because I don't know if P0757 is added to P0761. Deadband !?, I wouldn't have never searched for this. Thanks!
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