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High ambient temperature 55C of the 55kW motor with MM440 drive
Created by: Import-User-1 at: 7/28/2008 3:31 PM (1 Replies)
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| 8/4/2008 9:35 AM | |
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Hello, To enter the correct ambient temperature helps. Following items should be considered when using P0625: - The ambient temperature has to be entered prior to motor data identification. - An accuracy of +/- 5°C is adequate. - The motor data identification should be carried out on a cold motor (ambient temperature = stator temperature = rotor temperature). - The highest accuracy at temperature adaption of the stator resistance and rotor resistance can be achieved by connecting a KTY84 sensor. To cool down the Inverter it helps also to control the 55kW-Motor by an 75kW-inverter and giving more cooling air (best, air conditioned cooling air) by a separate fan. But be careful with a separate fan in a steel producing area. The inverter has to be installed in an cabin with filter, other wise the contaminated air will destroy the inverter, For more technical consulting please contact the Technical Support for Automation & Drives SIEMENS AG Tel: +49 (0) 180 5050 222 Fax: +49 (0) 180 5050 223 Mail: adsupport@siemens.com |
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