Siemens CU240B-2 Operating Instructions

6.27 Inverter protection using temperature monitoring................................................................322
6.28 Motor protection with temperature sensor............................................................................325
6.29 Motor protection by calculating the temperature..................................................................328
6.30 Motor and inverter protection by limiting the voltage............................................................331
6.31 Monitoring the driven load....................................................................................................333
6.31.1 Stall protection.....................................................................................................................334
6.31.2 No-load monitoring...............................................................................................................334
6.31.3 Stall protection.....................................................................................................................335
6.31.4 Torque monitoring................................................................................................................336
6.31.5 Blocking protection, leakage protection and dry-running protection....................................337
6.31.6 Rotation monitoring..............................................................................................................339
6.32 Flying restart – switching on while the motor is running.......................................................340
6.33 Automatic restart..................................................................................................................342
6.34 Kinetic buffering (Vdc min control).......................................................................................346
6.35 Efficiency optimization..........................................................................................................348
6.36 Bypass.................................................................................................................................351
6.37 Hibernation mode.................................................................................................................357
6.38 Line contactor control...........................................................................................................362
6.39 Calculating the energy saving for fluid flow machines.........................................................364
6.40 Switchover between different settings..................................................................................366
7 Saving the settings and series commissioning.........................................................................................369
7.1 Backing up and transferring settings using a memory card.................................................370
7.1.1 Memory cards......................................................................................................................370
7.1.2 Saving setting on memory card............................................................................................371
7.1.3 Transferring the setting from the memory card....................................................................375
7.1.4 Safely remove the memory card..........................................................................................378
7.1.5 Activate message for a memory card that is not inserted....................................................380
7.2 Saving the settings to a PC..................................................................................................381
7.3 Saving settings to an operator panel....................................................................................383
7.4 Other ways to back up settings............................................................................................385
7.5 Write protection....................................................................................................................386
7.6 Know-how protection............................................................................................................388
7.6.1 Extending the exception list for know-how protection..........................................................391
7.6.2 Activating and deactivating know-how protection................................................................392
8 Alarms, faults and system messages.......................................................................................................395
8.1 Operating states indicated on LEDs.....................................................................................396
8.2 System runtime....................................................................................................................398
8.3 Identification & maintenance data (I&M)..............................................................................399
8.4 Alarms, alarm buffer, and alarm history...............................................................................400
Table of contents
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 11

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English