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SINAMICS V20 Direction changeover time

5/26/2017 3:21 PM	Rate (0)
Sava Experienced Member Joined: 9/6/2011 Last visit: 7/27/2025 Posts: 22 Rating: (9)	Hi everyone. May Be silly question but anyway. How fast, i can switch direction of the motor? Currently i put a 2 seconds timer between commands ON/OFF1 and ON reverse /OFF1. If change commands faster, FC does not respond even if there is 24VDC on its input. In this case i should switch input to low and then again high. Is there any parameters that have influence on that? Because i need do this faster than 2 seconds.

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5/26/2017 6:15 PM	Rate (0)
Jackcaress Silver Member Joined: 3/12/2015 Last visit: 9/1/2025 Posts: 555 Rating: (15)	Have you tried changing the aceleration and deceleration ramps? There is also an off3 which is a fast stop funcion that you could use

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5/26/2017 10:15 PM	Rate (0)
Sava Experienced Member Joined: 9/6/2011 Last visit: 7/27/2025 Posts: 22 Rating: (9)	upd. Problem solved. I decreased P1227 (Zero speed detection monitoring time [s]) from 4 to 0.1 seconds. In conjunction with holding brake(P1215=1), P1227 has influence on changeover time which was in my case.

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5/29/2017 9:36 AM	Rate (0)
MichalWZ Silver Member Joined: 3/31/2015 Last visit: 7/30/2025 Posts: 175 Rating: (16)	For future reference, there is a FAQ regarding this problem: SINAMICS V20: Reversing without intermediate stop using BICO wiring

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This contribution was helpful to 1 thankful Users Sava

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