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Siemens 6SN1123-1AA00-0DA2 Configuration Manual
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505.015.4 Current reduction/derating5-131© Siemens AG 2012 All Rights ReservedSIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition5.4.4 Calculation examples Supplementary conditionsPower module: 6SN1123–1AA0–0EA1Operating mode: FDInverter pulse frequency: 6.3 kHzInstallation altitude 2000 m above sea levelAmbient temperature 45 °CXL = 55%f0 = 4.0 kHzIN = 56 AImax = 112 A Determining the derating factors(100% – 55%) (6.3 kHz – 4.0 kHz)XT = 100% – 8.0 kHz – 4.0 kHz = 74.125 %XTU = 100% – 2.5% (45 °C – 40 °C) = 87.5%XH 85% Calculating the permissible current valuesINred = IN XT XTU XH = 56 A 0.74125 0.875 0.85 = 30.8 AImaxred = Imax XT XTU XH = 112 A 0.74125 0.875 0.85 = 61.7 APower module: 6SN1123–1AA0–0EA1Operating mode: FDInverter pulse frequency: 6.3 kHzInstallation altitude <1000 m above sea levelAmbient temperature <40 °CXL = 55%f0 = 4.0 kHzIN = 56 AImax = 112 AXT = 100% – (100% – 55%) (6.3 kHz – 4.0 kHz)8.0 kHz – 4.0 kHz IN6.3 = IN XT = 56 A 0.74125 = 41.5 A Imax 6.3 = Imax XT = 112 A 0.74125 = 83.0 A= 74.125 %Temperature/installationaltitude deratingCurrent reduction5 Power Modules10.0405.08 |
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