Editing I²t protection
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I²t protection continuously estimates how much motor is dissipating heat compared to its rated heat dissipation. At 100% of rated current, heat dissipation is at maximum sustainable level. Care need to be taken only when driving more current than rated current. | I²t protection continuously estimates how much motor is dissipating heat compared to its rated heat dissipation. At 100% of rated current, heat dissipation is at maximum sustainable level. Care need to be taken only when driving more current than rated current. | ||
− | I²t algorithm will simply limit output current to rated current level if algorithm calculates that motor temperature is already at maximum. If calculated temperature is below maximum, then higher (peak) currents are allowed. | + | I²t algorithm will simply limit output current to rated current level if algorithm calculates that motor temperature is already at maximum. If calculated temperature is below maximum, then higher (peak) currents are allowed. |
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[[File:Currentlimits graph i2t.png|800px]] | [[File:Currentlimits graph i2t.png|800px]] | ||
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*[[Motor peak and continuous current limits]] | *[[Motor peak and continuous current limits]] | ||
*[http://www.copleycontrols.com/motion/pdf/IsqT.pdf Copley Controls explanation of I²t method] | *[http://www.copleycontrols.com/motion/pdf/IsqT.pdf Copley Controls explanation of I²t method] | ||
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