3/31/2009 9:55 AM | |
Posts: 467 Rating:
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yes the behaviour of the relay is correct. See 3UF7 System Manual, chapter 3.2, page 3 - 10 regards |
4/1/2009 4:11 PM | |
Posts: 6 Rating:
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Hi Paul Thanks for the reply. Even though we have not out any restriction on no of starts in an hour, we still have the Thermal model to protect the motor from getting damaged due to succesive starts.Please let me know the rationale of specifying the no. of successive starts per hour, especially since the Motor thermal model takes care of the Heating & Cooling cycles of the motor anyways. Is there any Siemens Literature on the thermal model development? I am attachingone article on this topic which may be useful to other readers. Attachment6164.pdf (750 Downloads) |
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