8.4
Setpoint calculation ............................................................................................................... 107
8.4.1
8.4.2
Invert setpoint ....................................................................................................................... 108
8.4.3
8.4.4
8.4.5
Speed limitation .................................................................................................................... 110
8.4.6
Ramp-function generator ...................................................................................................... 110
8.5
Motor control ......................................................................................................................... 115
8.5.1
V/f control .............................................................................................................................. 115
8.5.1.1
8.5.1.2
8.5.1.3
Optimizing motor starting ...................................................................................................... 118
8.5.2
Vector control ........................................................................................................................ 120
8.5.2.1
Overview ............................................................................................................................... 120
8.5.2.2
Select motor control .............................................................................................................. 121
8.5.2.3
8.5.2.4
Friction characteristic ............................................................................................................ 124
8.5.2.5
8.6
8.6.1
8.6.2
8.6.3
8.6.4
Overcurrent protection .......................................................................................................... 139
8.7
8.7.1
8.7.2
Unit changeover .................................................................................................................... 141
8.7.2.1
8.7.2.2
8.7.2.3
8.7.2.4
8.7.3
8.7.3.1
DC braking ............................................................................................................................ 145
8.7.3.2
8.7.4
Motor holding brake .............................................................................................................. 148
8.8
8.8.1
Description of functions......................................................................................................... 153
8.8.2
Prerequisite for STO use ...................................................................................................... 156
8.8.3
Commissioning STO ............................................................................................................. 156
8.8.3.1
Commissioning tool ............................................................................................................... 156
8.8.3.2
8.8.3.3
Changing settings ................................................................................................................. 157
8.8.3.4
8.8.3.5
8.8.3.6
8.8.3.7
Activate settings .................................................................................................................... 161
8.8.3.8
8.9
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
Table of contents
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