Siemens Sinamics CU240D-2 DP Operating Instructions Manual page 104

Advanced commissioning
6.1 Overview of the converter functions
The free function blocks permit configurable signal processing within the inverter.
You can select in which physical units the inverter represents its associated values.
Safety functions
The safety functions fulfill increased requirements regarding the functional safety of the
drive.
The extended safety functions monitor the drive speed.
The extended safety functions are described in the "Safety Integrated" function manual.
Setpoints and setpoint processing
The setpoint normally defines the motor speed.
The setpoint processing uses a ramp-function generator to prevent speed steps occurring
and to limit the speed to a permissible maximum value.
Technology controller
The technology controller controls process variables, e.g. pressure, temperature, level or
flow. The motor control receives the setpoint either from the higher-level control or from the
technology controller.
Motor control
The motor control ensures that the motor follows the speed setpoint. You can choose
between various control modes.
The inverter provides several methods to brake the motor electrically. During electrical
braking, the motor develops a torque that reduces the speed to standstill.
Protection of the drive and the driven load
The protection functions prevent damage to the motor, inverter and driven load.
102
Free function blocks (Page 145)
Selecting physical units (Page 146)
Safe Torque Off (STO) safety function (Page 149)
Overview of the manuals (Page 343)
Setpoints (Page 163)
Setpoint calculation (Page 175)
PID technology controller (Page 186)
Motor control (Page 190)
Electrically braking the motor (Page 215)
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF