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Sinamics V20 - only reach Minimum motor frequency

Created by: Aikka at: 2/18/2022 12:57 AM (5 Replies)

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2/18/2022 12:57 AM	Rate (0)
Aikka Member Joined: 12/7/2021 Last visit: 2/27/2022 Posts: 3 Rating: (0)	Hello all. I'm trying to make a motor to run in forward/reverse + holding brake using push buttons but after i entered all the parameters and pushed the button the drive only goes up to the minimum frequency 1080 (3Hz) even though the maximum frequency 1082 is set at 50 Hz. P0304: 400V P0305: 3.84A P0307: 1.5KW P0309: 85% P0310: 50Hz P0311: 1440 P1080: 3Hz P1082: 50Hz P1215: 1 P1216: 1s p1217: 1s P0731: 52.C P0701: 1 P0702: 2

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2/18/2022 6:31 AM	Rate (1)
PISCEAN 2010 Diamond Member Joined: 4/23/2010 Last visit: 11/23/2024 Posts: 8092 Rating: (881)	Please check values set in p2000 to p2004. These are reference values, i.e. Reference parameters are intended as an aid to presenting setpoint and actual value signals in a uniform manner. e.g. in your case set p2000 = 50, p2001 = 400 V, p2002 = 3.84 A, p2004 = 1.5 KW & check.

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2/18/2022 10:01 AM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 4/17/2025 Posts: 6008 Rating: (827)	Hello Aikka, if the reference parameters doesn`t solve your problem, you can also check parameters in the setpoint channel to see which part is limiting your setpoint or if your setpoint is even active at all. - r1114 Freq. setpoint after direction control - r1119 Freq. setpoint before RFG
	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 PISCEAN 2010

2/27/2022 5:18 PM	Rate (0)
Aikka Member Joined: 12/7/2021 Last visit: 2/27/2022 Posts: 3 Rating: (0)	Hello the reference parameters values are correct. but r1114 = 0.0 and r1119 is 3.0, how can i change them? sorry for the late reply

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2/27/2022 5:20 PM	Rate (0)
Aikka Member Joined: 12/7/2021 Last visit: 2/27/2022 Posts: 3 Rating: (0)	Technology Team Hello Aikka, if the reference parameters doesn`t solve your problem, you can also check parameters in the setpoint channel to see which part is limiting your setpoint or if your setpoint is even active at all. - r1114 Freq. setpoint after direction control - r1119 Freq. setpoint before RFG Hello the reference parameters values are correct. but r1114 = 0.0 and r1119 is 3.0, how can i change them? sorry for the late reply

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2/28/2022 11:17 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 4/17/2025 Posts: 6008 Rating: (827)	Hello Aikka, if r1114 is at 0.0, please check your parameterized setpoint source first. During commissioning you have to choose the selected setpoint source in p1000, see also chapter 5.5.2 quick commissioning in the V20 operating instruction manual. Otherwise the default frequency setpoint source “MOP” is used. https://support.industry.siemens.com/cs/ww/en/view/109799545 Another reason why r1114 could be 0.0 even though you are sending a setpoint other than 0 could be the setting of p1110 to inhibit negative frequency setpoints, for example when sending negative setpoint values.
	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 PISCEAN 2010

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