Table of contents
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
9
8 Setting functions ................................................................................................................................. 111
8.1 Overview of the converter functions........................................................................................... 111
8.2 Inverter control ........................................................................................................................... 113
8.2.1 Switching the motor on and off .................................................................................................. 113
8.2.2 Running the motor in jog mode (JOG function) ......................................................................... 115
8.2.3 Switching over the inverter control (command data set)............................................................ 117
8.3 Setpoints .................................................................................................................................... 119
8.3.1 Overview .................................................................................................................................... 119
8.3.2 Specifying the setpoint via the fieldbus ...................................................................................... 120
8.3.3 Motorized potentiometer as setpoint source .............................................................................. 120
8.3.4 Fixed speed as setpoint source ................................................................................................. 123
8.4 Setpoint calculation .................................................................................................................... 126
8.4.1 Overview of setpoint preparation ............................................................................................... 126
8.4.2 Invert setpoint ............................................................................................................................. 127
8.4.3 Inhibit direction of rotation .......................................................................................................... 128
8.4.4 Skip frequency bands and minimum speed ............................................................................... 129
8.4.5 Speed limitation.......................................................................................................................... 130
8.4.6 Ramp-function generator ........................................................................................................... 131
8.5 Motor control .............................................................................................................................. 136
8.5.1 V/f control ................................................................................................................................... 136
8.5.1.1 Characteristics of U/f control ...................................................................................................... 137
8.5.1.2 Selecting the U/f characteristic .................................................................................................. 138
8.5.1.3 Optimizing with a high break loose torque and brief overload ................................................... 138
8.5.2 Vector control ............................................................................................................................. 140
8.5.2.1 Checking the encoder signal ...................................................................................................... 141
8.5.2.2 Select motor control ................................................................................................................... 141
8.5.2.3 Optimizing the speed controller ................................................................................................. 142
8.5.2.4 Advanced settings ...................................................................................................................... 144
8.5.3 Operating the converter without position controller ................................................................... 145
8.6 Basic positioner and position control ......................................................................................... 147
8.6.1 Basic positioner and position control ......................................................................................... 147
8.6.2 Commissioning sequence .......................................................................................................... 148
8.6.3 Normalizing the encoder signal.................................................................................................. 149
8.6.3.1 Define the resolution .................................................................................................................. 149
8.6.3.2 Modulo range setting ................................................................................................................. 151
8.6.3.3 Checking the actual position value ............................................................................................ 153
8.6.3.4 Setting the backlash ................................................................................................................... 154
8.6.4 Limiting the positioning range .................................................................................................... 156
8.6.5 Setting the position controller ..................................................................................................... 158
8.6.5.1 Precontrol and gain .................................................................................................................... 158
8.6.5.2 Optimizing the position controller ............................................................................................... 159
8.6.5.3 Limiting the traversing profile ..................................................................................................... 162
8.6.6 Setting the monitoring functions................................................................................................. 164
8.6.6.1 Standstill and positioning monitoring ......................................................................................... 164
8.6.6.2 Following error monitoring ......................................................................................................... 166
8.6.6.3 Cam sequencer .......................................................................................................................... 168
8.6.7 Referencing ................................................................................................................................ 169
8.6.7.1 Referencing methods ................................................................................................................. 169
8.6.7.2 Setting the reference point approach ......................................................................................... 170
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