
Table of contents
6.2.6 Two-wire control, method 3 ..................................................................................................169
6.2.7 Three-wire control, method 1................................................................................................170
6.2.8 Three-wire control, method 2................................................................................................171
6.2.9 Running the motor in jog mode (JOG function) ....................................................................172
6.2.10 Control via PROFIBUS or PROFINET with the PROFIdrive profile .....................................173
6.2.10.1 Control and status word 1.....................................................................................................175
6.2.10.2 Control and status word 3.....................................................................................................178
6.2.10.3 NAMUR message word ........................................................................................................180
6.2.10.4 Data structure of the parameter channel ..............................................................................180
6.2.10.5 Examples of the parameter channel.....................................................................................184
6.2.10.6 Extend telegrams and change signal interconnection ..........................................................185
6.2.10.7 Configuring the IP interface ..................................................................................................187
6.2.10.8 Slave-to-slave communication..............................................................................................187
6.2.10.9 Acyclically reading and writing inverter parameters .............................................................188
6.2.11 Control via additional fieldbuses ...........................................................................................189
6.2.11.1 Modbus RTU.........................................................................................................................189
6.2.11.2 USS.......................................................................................................................................192
6.2.11.3 CANopen ..............................................................................................................................195
6.2.11.4 BACnet MS/TP......................................................................................................................196
6.2.11.5 Ethernet/IP ............................................................................................................................199
6.2.11.6 P1..........................................................................................................................................200
6.2.12 Switching over the inverter control (command data set) ......................................................201
6.3 Setpoints ...............................................................................................................................203
6.3.1 Analog input as setpoint source............................................................................................
204
6.3.2 Specifying the setpoint via the fieldbus.................................................................................205
6.3.3 Motorized potentiometer as setpoint source.........................................................................206
6.3.4 Fixed speed as setpoint source ............................................................................................208
6.4 Setpoint calculation...............................................................................................................211
6.4.1 Overview of setpoint processing...........................................................................................211
6.4.2 Invert setpoint .......................................................................................................................212
6.4.3 Enable direction of rotation ...................................................................................................213
6.4.4 Skip frequency bands and minimum speed..........................................................................214
6.4.5 Speed limitation ....................................................................................................................215
6.4.6 Ramp-function generator ......................................................................................................216
6.5 Motor control .........................................................................................................................219
6.5.1 V/f control..............................................................................................................................219
6.5.1.1 Characteristics of U/f control.................................................................................................221
6.5.1.2 Optimizing motor starting......................................................................................................224
6.5.2 Vector control with speed controller......................................................................................227
6.5.2.1 Overview ...............................................................................................................................227
6.5.2.2 Optimizing the speed controller ............................................................................................229
6.6 Protection functions ..............................................................................................................231
6.6.1 Inverter temperature monitoring ...........................................................................................231
6.6.2 Motor temperature monitoring using a temperature sensor .................................................234
6.6.3 Protecting the motor by calculating the motor temperature..................................................236
6.6.4 Overcurrent protection ..........................................................................................................238
6.6.5 Limiting the maximum DC link voltage..................................................................................239
6.7 Application-specific functions................................................................................................241
6.7.1 Unit changeover....................................................................................................................241
6.7.1.1 Changing over the motor standard .......................................................................................242
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB 9