Siemens SINAMICS PERFECT HARMONY GH180 - Page 7

6.16 Options for Drive Protect Menu (7) - part 2 ....................................................................... 158
6.17 Options for Meter Menu (8) ............................................................................................. 161
6.18 Options for Communications Menu (9)............................................................................. 167
6.19 Options for Multiple Con󹪝guration Files............................................................................ 171
7 Operating the Control........................................................................................................................ 177
7.1 Functions Introduction..................................................................................................... 177
7.2 Frame of Reference.......................................................................................................... 178
7.3 Signal Polarities ............................................................................................................... 181
7.4 Cell Bypass....................................................................................................................... 182
7.4.1 Fast Bypass (U11)............................................................................................................. 182
7.4.2 Forced Bypass - Non-faulted Cells ..................................................................................... 183
7.4.3 Mechanical Cell Bypass (U11)........................................................................................... 184
7.4.4 Neutral Point Shift during Bypass (U11)............................................................................ 185
7.5 Energy Saver.................................................................................................................... 192
7.6 Power Monitoring (A67-A68) ........................................................................................... 193
7.7 Motor Thermal Overload Protection.................................................................................. 194
7.8 Thermal Over Temperature Rollback ................................................................................. 200
7.9 Input Side Monitoring and Protection ............................................................................... 202
7.9.1 Input Side Monitoring ...................................................................................................... 202
7.9.2 One Cycle Protection........................................................................................................ 203
7.9.3 Protecting Transformer by Limiting Secondary Currents .................................................... 205
7.9.4 Excessive Drive Losses Protection...................................................................................... 208
7.9.5 System Arc Detection ....................................................................................................... 211
7.10 Drive Output Torque Limiting ........................................................................................... 212
7.10.1 Input Under-Voltage Rollback ........................................................................................... 212
7.10.2 Extended Undervoltage Ride-through............................................................................... 213
7.10.3 Input Single-Phase Rollback.............................................................................................. 214
7.10.4 Transformer Thermal Rollback .......................................................................................... 215
7.10.5 Torque Limit Setting......................................................................................................... 216
7.10.6 Field-Weakening Limit...................................................................................................... 216
7.10.7 Cell Current Overload....................................................................................................... 216
7.10.8 Timers for Drive Operation in Cell or Transformer Over-temperarure.................................. 217
7.11 Command Generator ....................................................................................................... 218
7.11.1 Analog Input Sources....................................................................................................... 218
7.11.2 Proportional-Integral-Derivative (PID) Controller ............................................................... 219
7.11.3 Set Point Sources ............................................................................................................. 220
7.11.4 Speed Pro󹪝le.................................................................................................................... 220
7.11.5 Critical Speed Avoidance .................................................................................................. 220
7.11.6 Polarity Control ................................................................................................................ 221
7.11.7 Speed Ramp..................................................................................................................... 221
7.11.8 Speed Limits .................................................................................................................... 222
7.12 Process Tolerant Protection Strategy (U10) ....................................................................... 223
7.13 Drive Tuning .................................................................................................................... 225
Table of contents
NXGPro+ Control Manual
Operating Manual, A5E50491925A 5