Page 303 - Electric Drives and Electromechanical Systems
P. 303

302   Index


             MOSFETs. See Metal-oxide semiconductor       theory, 136e137
                   field-effect transistors (MOSFETs)      torque, 150
             Motion control                               variables, 198e199
               cards, 258                                 voltage, 196e197
               software, 116                            Motoring region, 191
               systems, 30e33, 31f                      MRAC. See Model-reference adaptive
                 components of motor-drive system, 32t       control (MRAC)
             Motion controllers, 241, 258e260           Multi axis computer-numerical-control,
               axis controllers, 258e259                     241e242
               machine tool controllers, 259e260        Multi axis controllers, 258
             Motion trajectories, 52e56, 52fe53f, 56f   Multi-axis system, 3, 4f
             Motor-drive sizing, 98e106                 Multistack variable-reluctance motors,
               continuous duty, 100e101                      210e211, 211f
               inability to meet both speed and torque
                   requirements, 104                    N
               intermittent duty, 101e104               National Electrical Manufacturers
               linear motor sizing, 104e106                  Association (NEMA), 64e65
             Motor-drive system, 33, 56e71, 187,          NEMA-3 system, 65
                   251e252                              NC systems. See Numerical-control systems
               electromagnetic compatibility, 58e59          (NC systems)
                 wiring layout in normal industrial     NEMA. See National Electrical
                   environment, 59f                          Manufacturers Association (NEMA)
               hazards and risk, 65e71                  Neodymium-iron-based magnetic
                 ALARP principle, 71f                        materials, 141e143
                 FMEA risk assessment for               Network(ing), 273e274
                   tachogenerator, 69t                    comparison between RS-233 and RS-484
                 risk management model, 67f                  standards, 274f
               mechanical compatibility, 57e58            conventional, 272e280
               protection from environment, 64e65         industrial, 272, 274
                 IP rating system, 64t                    industrial specific, 278e280
               supply considerations, 60e64               layer, 277
               wiring considerations, 59e60               service layers, 277
             Motor(s), 31, 139e140, 227. See also         topology, 274e276
                   Actuators                            Nickel-titanium alloy (NiTi), 234e235
               controllers, 143                         Nitinol. See Nickel-titanium alloy (NiTi)
               efficiency, 181                           Non-conventional processes, 7
               limited-angle torque motors, 229e232,    Non-locating bearing arrangements, 88
                   230f                                 Numerical-control systems (NC systems), 2
               modelling, 198e199
               piezoelectric motors, 232e233            O
               shaft encoder, 181e182                   OEM. See Original equipment manufacturer
               slip, 188e189                                 (OEM)
               switched reluctance motors, 235e238,     Online programming, 273
                   236f                                 Open Systems Interconnection model (OSI
               terminal voltage, 158                         model), 276e278, 276f
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