Bosch Rexroth IndraDyn S - MKE Project Planning Manual

Project Planning Manual | Rexroth MKE Synchronous Motors Electric Drivesand Controls| Bosch Rexroth AG 77/131Operating Conditions and Application NotesTemperature classesThe electrical equipment of Group II are classified according to the characterof explosive atmosphere, for which they are intended for.For the degree of protection "pressure resistant casing "d"" and "intrinsic safetycategory "i"", all electrical equipment of Group II are classified into IIA, IIB andIIC (see appendix A according to EN 50014:1992).For all degrees of protection, the equipment of Group II has to be labeled subjectto its maximum surface temperature.The maximum surface temperature for electrical equipments of Group I has tobe indicated in the testing documents.Electrical equipment of Group II are classified and labeled and have to be either:● classified preferably in a temperature class in compliance with Fig.: 9-3;●●or labeled with the particular maximum surface temperature;or, if applicable, labeled with the specific gas for which the apparatus isintended for.Temperature classMaximum surface temperature°CFig.9-3:9.1.2 Application Conditions for MKE MotorsGeneralConnection conditionsGroundingRisks of corrosionEmergency stopT1 450T2 300T3 200T4 135T5 100T6 85Classification of the maximum surface temperature in classes for electricalequipment of Group IIThe motors are only allowed to operate with the Rexroth drive control devicesIndradrive, DIAX04, EcoDrive, and DURADRIVE. Controllers of other manufacturersare not permitted.The clamp terminals in the terminal box must be screwed on tightly.Do not disconnect or connect connectors in explosive areas!Speed-controlled drive systems contain unavoidable discharge currents aboveground. For this reason, the motors have to be grounded over the motor cableand over a separate ground wire with min. 4 mm 2 of cross-section, as specifiedin the terminal diagram. Check that the position of the grounded conductor isfixed before commissioning.If the protective conductor in the motor cable and the second separate protectiveconductor on the motor housing are not connected or are interrupted bycorrosion or other defects during their lifetime, the discharge current flows (asleakage current) over conducting housing parts. This has to be prevented withthe above-mentioned measures. (ATEX-Directive 94/9/EG, appendix II, Cap.1.2.3 and Cap. .1.3.3, 1.4)Corrosion of the motor housing due to aggressive substances (such as certaincoolants, lubricants, cutting oils or salt mists) is to be prevented.Stored energy in the drive devices circuit has to be degraded or isolated assoon as possible via pressing the emergency stop, so that in the case of failure