Bosch Rexroth IndraDyn S - MKE Project Planning Manual

Project Planning Manual | Rexroth MKE Synchronous Motors Electric Drivesand Controls| Bosch Rexroth AG 81/131Operating Conditions and Application NotesDANGERDanger of explosion, danger to life, heavy injury and material damage⇒ Do not set up drive control devices or connectors in potentially explosiveareas.⇒ Make sure that connectors cannot reach into the hazardous areas.⇒ Do not disconnect the connections under load!⇒ Make sure that no ignition sparks could occur within the hazardous area.9.2 Setup Height and Ambient TemperatureNominal dataExceeding the nominal data Derating– curvesThe performance data specified for the motors apply under the following conditions:● Ambient temperatures of 0 to +40 ºC●Setup heights of 0 to 1000 m above MSL.If you intend to use motors above these ranges, you must take the “utilizationfactors” into consideration. This reduces the performance data.9.3 Degree of Protection(1) Utilization depending on the ambient temperature(2) Utilization depending on the setup elevationf TTemperature utilization factort AAmbient temperature in degrees CelsiusΔT60 Operating modef HHeight utilization factorhSetup height in metersFig.9-8: MKE derating (utilization factors)If either the ambient temperature or the setup height exceeds the nominal data:1. Multiply the torque data specified in the selection data by the utilizationfactor.2. Ensure that the reduced torque data are not exceeded by your application.If both the ambient temperature and the setup height are exceeding the nominaldata:1. Multiply the load factors f T and f H determined.2. Multiply the value obtained by the motor torque data specified in the selectiondata.3. Ensure that the reduced torque data are not exceeded by your application.The degree of protection is defined by the abbreviation IP (International Protection)and two reference numbers specifying the degree of protection.