8/3/2020 9:41 AM | |
Joined: 10/25/2007 Last visit: 2/28/2023 Posts: 25 Rating:
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zako thanks for replay We tried to run belt on just one motor (on second drive there is two drive data sets, so when first drive is in off mode, second drive in other DDS gets speed reference from PLC). So we tried run belt on just first, a then just on second motor. When belt is running with just one motor there is slightly variance of set and actual torque, but there is not noticeable oscillation, just some regular deviation, more like noise and no correct period of oscillation. But when both motor is running there is noticeable shapely oscillation. Yes, maybe the frequency is created by mechanical system, but I believe Sinamic drives is capable of overcoming machine self-frequency with some parameter tweaking. |
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