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In my application I must drive two drums with two
75kw motors, and I want to use two certain frequence-converter to do this job.
In this system, two drums must synchronize almost absolutely, because there is so big friction between them that their velocity are the same. I think it's the same like this: two motors have one shaft.
But for two close-loop speed controlled motors, any speed error will promote them fight against one another, and the result will be BLOCK UP both!
Can anybody who have experience tell me how can I
resolve this problem? By the way,can you give me suggestions which frequence-converter I should select, motors also.
thanks a lot!
75kw motors, and I want to use two certain frequence-converter to do this job.
In this system, two drums must synchronize almost absolutely, because there is so big friction between them that their velocity are the same. I think it's the same like this: two motors have one shaft.
But for two close-loop speed controlled motors, any speed error will promote them fight against one another, and the result will be BLOCK UP both!
Can anybody who have experience tell me how can I
resolve this problem? By the way,can you give me suggestions which frequence-converter I should select, motors also.
thanks a lot!