Tabla De Contenido; Low Voltage Motors For Hazardous Areas - ABB M3H Serie Manual De Instalación, Funcionamiento, Mantenimiento Y Seguridad

Low Voltage Motors for Hazardous Areas

Installation, operation, maintenance and safety manual
Table of Contents
Low Voltage Motors for Hazardous Areas ...........................................................................3
1. Introduction ......................................................................................................................5
1.1 Declaration of Conformity ..........................................................................................5
1.2 Validity .......................................................................................................................5
1.3 Conformity ..................................................................................................................5
1.4 Preliminary Checks ....................................................................................................6
2. Handling .............................................................................................................................6
2.1 Reception check ........................................................................................................6
2.2 Transportation and storage .......................................................................................6
2.3 Lifting .........................................................................................................................6
2.4 Motor weight ..............................................................................................................7
3. Installation and commissioning ......................................................................................7
3.1 General ......................................................................................................................7
3.2 Insulation resistance check ........................................................................................8
3.3 Foundation .................................................................................................................8
3.4 Balancing and fi tting coupling halves and pulleys ......................................................8
3.5 Mounting and alignment of the motor ........................................................................8
3.6 Slide rails and belt drives ...........................................................................................8
3.7 Motors with drain plugs for condensation ..................................................................9
3.8 Cabling and electrical connections ............................................................................9
3.8.1 Flameproof motors .........................................................................................9
3.8.2 Dust Ignition Proof motors DIP, Ex tD .........................................................10
3.8.3 Connections for different starting methods ..................................................10
3.8.4 Connections of auxiliaries ............................................................................10
3.9 Terminals and direction of rotation ...........................................................................10
3.10 Protection against overload and stalling ..................................................................10
4. Operation .........................................................................................................................11
4.1 Use ...........................................................................................................................11
4.2 Cooling .....................................................................................................................11
4.3 Safety considerations ...............................................................................................11
5. Hazardous area motors in variable speed operation ..................................................12
5.1 Introduction ..............................................................................................................12
5.2 Main requirements according to EN and IEC standards ..........................................12
5.3 Winding insulation ....................................................................................................12
5.3.1 Phase to phase voltages .............................................................................12
5.3.2 Phase to ground voltages ............................................................................12
5.3.3 Selection of winding insulation for ACS800-converters .............................13
5.3.4 Selection of winding insulation with all other converters .............................13
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
ABB/Low Voltage Motors/ Ex manual 01-2007
Page
3 - EN