Table of contents
Converter with the control units CU240D-2
8
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
6.16
Electrically braking the motor ............................................................................................... 215
6.16.1
DC braking ........................................................................................................................... 216
6.16.2
Braking with regenerative feedback to the line .................................................................... 219
6.17
Overcurrent protection ......................................................................................................... 220
6.18
Inverter protection using temperature monitoring ................................................................ 221
6.19
Motor temperature monitoring using a temperature sensor ................................................ 224
6.20
Motor protection by calculating the temperature .................................................................. 228
6.21
Monitoring the driven load .................................................................................................... 230
6.21.1
Breakdown protection .......................................................................................................... 232
6.21.2
No-load monitoring ............................................................................................................... 232
6.21.3
Blocking protection ............................................................................................................... 233
6.21.4
Load monitoring ................................................................................................................... 234
6.21.5
Torque monitoring ................................................................................................................ 235
6.21.6
Rotation monitoring .............................................................................................................. 236
6.21.7
Speed deviation monitoring ................................................................................................. 237
6.22
Efficiency optimization ......................................................................................................... 239
6.23
Switchover between different settings ................................................................................. 243
7
Backing up data and series commissioning .......................................................................................... 245
7.1
Saving settings on a memory card....................................................................................... 246
7.1.1
Memory cards ...................................................................................................................... 246
7.1.2
Saving settings to the memory card..................................................................................... 247
7.1.3
Transferring the settings from the memory card .................................................................. 248
7.1.4
Activate message for a memory card that is not inserted .................................................... 249
7.2
Backup the settings to a PC ................................................................................................. 250
7.3
Saving settings and transferring them using an operator panel .......................................... 252
7.4
Other ways to back up settings ............................................................................................ 253
7.5
Write protection .................................................................................................................... 253
7.6
Know-how protection ........................................................................................................... 254
7.6.1
Extending the exception list for know-how protection .......................................................... 257
7.6.2
Activating and deactivating know-how protection ................................................................ 258
8
Alarms, faults and system messages ................................................................................................... 263
8.1
Operating states indicated on LED ...................................................................................... 263
8.2
System runtime .................................................................................................................... 267
8.3
Identification & maintenance data (I&M) .............................................................................. 267
8.4
Alarms, alarm buffer, and alarm history ............................................................................... 268
8.5
Faults, alarm buffer and alarm history ................................................................................. 272
8.6
List of alarms and faults ....................................................................................................... 276
9
Corrective maintenance ....................................................................................................................... 285
9.1
Spare parts compatibility ...................................................................................................... 285
9.2
Replacing inverter components ........................................................................................... 285