11/26/2010 4:00 PM | |
Posts: 739 Rating: (55)
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Generally, the motor torque is (nearly) the same between 0Hz and nominal motor frequency, to achieve higher speeds then nominal motor frequency, the drive inverter output frequency is appropriately increased; this has the disadvantage that the motor torque is reduced. If, at higher speeds (relative) a constant torque is demanded, then the 87 Hz characteristic can be used. see: http://support.automation.siemens.com/WW/view/en/25338130 http://support.automation.siemens.com/WW/view/en/21139232 for manuals see: http://support.automation.siemens.com/WW/view/en/10804923/133300 (to achieve higher frequencies parameterise P1082 = Max. speed (and P2000)) |
4/24/2012 7:20 AM | |
Posts: 165 Rating: (25) |
hello krsh /tf/WW/en/Posts/71596#top |
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