
Table of contents
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 06/2016, FW V4.7.6, A5E31298649B AG 9
6.2.5.3 Assignment tables.................................................................................................................157
6.2.5.4 Cyclic and acyclic communication via CTT2 ........................................................................159
6.2.5.5 Cyclic communication ...........................................................................................................160
6.2.5.6 Acyclic communication - standard ........................................................................................161
6.2.5.7 Acyclic communication - manufacturer-specific....................................................................161
6.2.6 Switching over the inverter control (command data set) ......................................................163
6.3 Setpoints ...............................................................................................................................165
6.3.1 Overview ...............................................................................................................................165
6.3.2 Analog input as setpoint source............................................................................................166
6.3.3 Specifying the setpoint via the fieldbus.................................................................................167
6.3.4 Electromechanical potentiometer .........................................................................................167
6.3.5 Motorized potentiometer as setpoint source.........................................................................168
6.3.6 Fixed speed as setpoint source ............................................................................................170
6.4 Setpoint calculation...............................................................................................................172
6.4.1 Overview of setpoint processing...........................................................................................172
6.4.2 Invert setpoint .......................................................................................................................173
6.4.3 Inhibit direction of rotation.....................................................................................................173
6.4.4 Skip frequency bands and minimum speed..........................................................................174
6.4.5 Speed limitation ....................................................................................................................175
6.5 Motor control .........................................................................................................................177
6.5.1 V/f control..............................................................................................................................178
6.5.1.1 Characteristics of U/f control.................................................................................................179
6.5.1.2 Selecting the U/f characteristic .............................................................................................180
6.5.1.3 Optimizing motor starting......................................................................................................181
6.5.2 Vector control with closed loop speed control ......................................................................183
6.5.2.1 Characteristics of the closed loop speed control ..................................................................183
6.5.2.2 Select motor control ..............................................................................................................184
6.5.2.3 Optimizing the speed controller ............................................................................................185
6.5.2.4 Friction characteristic ............................................................................................................187
6.5.2.5 Moment of inertia estimator ..................................................................................................189
6.5.3 Torque control.......................................................................................................................195
6.6 Protection functions ..............................................................................................................196
6.6.1 Inverter temperature monitoring ...........................................................................................196
6.6.2 Motor temperature monitoring using a temperature sensor .................................................199
6.6.3 Protecting the motor by calculating the motor temperature..................................................
202
6.6.4 Overcurrent protection ..........................................................................................................203
6.6.5 Limiting the maximum DC link voltage..................................................................................205
6.7 Application-specific functions................................................................................................206
6.7.1 Unit changeover....................................................................................................................206
6.7.1.1 Changing over the motor standard .......................................................................................207
6.7.1.2 Changing over the unit system .............................................................................................208
6.7.1.3 Changing over units for the technology controller ................................................................208
6.7.1.4 Switching units with STARTER.............................................................................................209
6.7.2 Braking functions of the inverter ...........................................................................................210
6.7.2.1 DC braking ............................................................................................................................211
6.7.2.2 Dynamic braking ...................................................................................................................214
6.7.2.3 Motor holding brake ..............................................................................................................215
6.7.3 Quick Stop function...............................................................................................................220
6.7.4 Limit position control .............................................................................................................222
6.7.5 PID technology controller......................................................................................................226