3.3.2 Regulations........................................................................................................................ 27
3.3.3 Cooling and ventilation...................................................................................................... 27
3.3.3.1 Machines with a fan........................................................................................................... 28
3.3.3.2 Machines without a fan (optional)...................................................................................... 28
3.3.4 Bearings ............................................................................................................................ 29
3.3.5 Balancing........................................................................................................................... 29
3.3.6 Types of construction/method of installation ...................................................................... 29
3.3.7 Degree of protection .......................................................................................................... 31
3.3.8 Environmental conditions .................................................................................................. 31
3.3.9 Optional built-on and built-in accessories ........................................................................... 31
3.3.10 Paint nish......................................................................................................................... 32
4 Preparing for use ................................................................................................................................. 33
4.1 Safety-related aspects to consider when conguring the plant ............................................ 33
4.2 Observing the operating mode........................................................................................... 33
4.3 Machines without nal paint coating.................................................................................. 33
4.4 Delivery ............................................................................................................................. 33
4.5 Transport and storage........................................................................................................ 34
4.5.1 Safety instructions for transport ......................................................................................... 34
4.5.1.1 Types of construction on the rating plate............................................................................ 36
4.5.2 Transport........................................................................................................................... 36
4.5.3 Storage.............................................................................................................................. 37
4.5.4 Securing the rotor.............................................................................................................. 38
4.5.5 Commissioning after storage.............................................................................................. 40
4.5.5.1 Insulation resistance and polarization index ....................................................................... 40
4.5.5.2 Lubricating the rolling bearings ......................................................................................... 40
4.5.5.3 Regreasing rolling bearings after storage periods of up to two years ................................... 40
4.5.5.4 Releasing the rotor shipping brace before commissioning ................................................... 40
4.6 Ensure adequate cooling.................................................................................................... 41
4.6.1 Interlock circuit for the separately driven fan motor ............................................................ 41
4.7 Interlock circuit for anti-condensation heating.................................................................... 43
4.8 Noise emission................................................................................................................... 43
4.9 Voltage and frequency uctuations during line operation ................................................... 43
4.10 Rotational speed limit values.............................................................................................. 43
4.11 System-inherent frequencies.............................................................................................. 44
4.12 Electromagnetic compatibility ............................................................................................ 44
4.13 Converter operation........................................................................................................... 45
4.13.1 Parameterizing the converter ............................................................................................. 45
4.13.2 Converter input voltage ..................................................................................................... 45
4.13.3 Reducing bearing currents ................................................................................................. 46
4.13.4 Insulated bearings for converter operation ......................................................................... 47
4.13.5 Tandem operation.............................................................................................................. 48
4.13.6 Speed limits for converter operation .................................................................................. 48
5 Assembly.............................................................................................................................................. 49
5.1 Safety instructions for installation ...................................................................................... 49
Table of contents
1LE5, 1PC4 shaft heights 280 ... 355
4 Operating Instructions, 11/2022, A5E41454666A
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