ABB M2A Manual De Instalación E Usuario página 4

5.4 Thermal protection of windings ................................................................................................ 13
5.5 Bearing currents ....................................................................................................................... 13
5.5.1 Elimination of bearing currents with ABB ACS800 converters ...................................... 13
5.5.2 Elimination of bearing currents with all other converters ............................................... 13
5.6 Cabling, grounding and EMC ................................................................................................... 13
5.7 Operating speed ...................................................................................................................... 14
5.8 Dimensioning the motor for variable speed application ............................................................. 14
5.8.1 General ........................................................................................................................ 14
5.8.2 Dimensioning with ABB ACS800 converters with DTC control ..................................... 14
5.8.3 Dimensioning with other voltage source PWM-type converters .................................... 14
5.8.4 Short time overloads .................................................................................................... 14
5.9 Rating plates ............................................................................................................................ 14
5.10 Commissioning the variable speed application ......................................................................... 14
6. Maintenance ................................................................................................................................... 15
6.1 General inspection ................................................................................................................... 15
6.1.1 Standby motors .......................................................................................................... 15
6.2 Lubrication ............................................................................................................................... 16
6.2.1 Motors with permanently greased bearings .................................................................. 16
6.2.2 Motors with regreasable bearings ................................................................................ 16
6.2.3 Lubrication intervals and amounts ................................................................................ 17
6.2.4 Lubricants .................................................................................................................... 17
7. After Sales support ........................................................................................................................ 18
7.1 Spare parts .............................................................................................................................. 18
7.2 Dismantling, re-assembly and rewinding................................................................................... 18
7.3 Bearings .................................................................................................................................. 18
8. Environmental requirements ......................................................................................................... 18
8.1 Noise levels .............................................................................................................................. 18
9. Troubleshooting.............................................................................................................................. 19
4 - EN ABB Motors and Generators | Low voltage Ex motor manual 01-2007