Bosch Rexroth IndraDyn S - MKE Project Planning Manual

66/131 Bosch Rexroth AG | Electric Drivesand ControlsRexroth MKE Synchronous Motors | Project Planning ManualConnection TechniqueThe connection of the PTC resistors for the motor temperature analysis isstipulated in the respective terminal diagram of the drive control devices.DANGERAdditional protective conductorRisk of explosion due to impermissible temperature increase in case ofwrong temperature analysis!⇒ The temperature analysis of the motors must be done with drive control devicesby Rexroth!⇒ Connections [1] and [2] of the PTC resistor must be connected to the temperaturemonitoring unit of the drive control device!The MKE motors comply with the temperature class T4 according toEN 50014:1992. Thus the maximum permissible surface temperature of theequipment amounts to ≤ 135 °C. The PTC resistors mounted in the MKE motorsensure a reliable and safe overtemperature interruption in connection with theplotting system of the drive control devices.Protective-conductor terminalNominalcross-sectionTerminal areaMKE037MKE047MKE098MKE1182.5 mm²2.5 mm² fine-strand up to4.0 mm² single-strandTemperature resistance of connectioncablesFig.8-2:Additional protective conductorFor using the MKE motors in explosive areas, cables with a temperature resistanceof 80 °C (176 °F) have to be used.Ready-made connection cablesFig.8-3:Information sign temperature resistance connection cableThe cables of Rexroth given in the selective lists comply with this conditionprecedent.Ready-made connection cables in various length for motors according to EuropeanStandard can be ordered at Bosch Rexroth.Selective lists of available connection cables chapter 14.2 "Selection of ConnectionCable" on page 121Additional documentation:DOK-CONNEC-CABLE*STAND-AUxx-EN-P