Operating Instructions

6.25 Overcurrent protection.........................................................................................................328
6.26 Inverter protection using temperature monitoring................................................................329
6.27 Motor protection with temperature sensor............................................................................332
6.28 Motor protection by calculating the temperature..................................................................335
6.29 Motor and inverter protection by limiting the voltage............................................................338
6.30 Monitoring the driven load....................................................................................................340
6.30.1 Breakdown protection..........................................................................................................341
6.30.2 No-load monitoring...............................................................................................................341
6.30.3 Blocking protection...............................................................................................................342
6.30.4 Torque monitoring................................................................................................................343
6.30.5 Blocking protection, leakage protection and dry-running protection....................................344
6.30.6 Rotation monitoring..............................................................................................................346
6.31 Flying restart – switching on while the motor is running.......................................................347
6.32 Automatic restart..................................................................................................................349
6.33 Kinetic buffering (Vdc min control).......................................................................................353
6.34 Essential service mode........................................................................................................355
6.35 Efficiency optimization..........................................................................................................359
6.36 Bypass.................................................................................................................................362
6.37 Hibernation mode.................................................................................................................368
6.38 Line contactor control...........................................................................................................373
6.39 Calculating the energy saving for fluid flow machines.........................................................375
6.40 Switchover between different settings..................................................................................377
7 Saving the settings and series commissioning.........................................................................................379
7.1 Backing up and transferring settings using a memory card.................................................380
7.1.1 Memory cards......................................................................................................................380
7.1.2 Saving setting on memory card............................................................................................381
7.1.3 Transferring the setting from the memory card....................................................................384
7.1.4 Safely remove the memory card..........................................................................................386
7.1.5 Activate message for a memory card that is not inserted....................................................388
7.2 Saving the settings to a PC..................................................................................................389
7.3 Saving settings to an operator panel....................................................................................390
7.4 Other ways to back up settings............................................................................................392
7.5 Write protection....................................................................................................................393
7.6 Know-how protection............................................................................................................395
7.6.1 Extending the exception list for know-how protection..........................................................397
7.6.2 Activating and deactivating know-how protection................................................................398
8 Alarms, faults and system messages.......................................................................................................401
8.1 Operating states indicated on LEDs.....................................................................................402
8.2 System runtime....................................................................................................................404
Table of contents
Converter with the CU230P-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257946B AF 9