Siemens SINAMICS G120D Operating Instructions Manual page 108

Setting functions
8.1 Overview of the converter functions
Functions relevant to all applications
The functions that you require in each application are shown
in a dark color in the function overview above.
You set these functions during the basic commissioning, so
that in many cases, the motor can be operated without
having to make any additional settings.
Inverter control is responsible for all of the other
inverter functions. Among other things, it defines
how the inverter responds to external control
signals.
Inverter control (Page 109)
The commands from the higher-level control are
sent to the inverter via digital inputs or the
fieldbus. The inverter returns its status signals to
the outputs of the Control Unit or to the fieldbus.
Adapt inputs and outputs (Page 75)
Configuring the fieldbus (Page 83)
The setpoint source defines how the speed
setpoint for the motor is specified, e.g. via an
analog input or a fieldbus.
Setpoints (Page 114)
The setpoint calculation uses a ramp-function
generator to prevent speed steps occurring and
to limit the speed to a permissible maximum
value.
Setpoint calculation (Page 121)
The motor closed-loop control ensures that the
motor follows the speed setpoint.
Motor control (Page 130)
108
Functions required in special applications only
The functions whose parameters you only need to adapt
when actually required are shown in white in the function
overview above.
The protection and monitoring functions avoid
overloads and operating states that could cause
damage to the motor, inverter and driven load.
The motor temperature monitoring, for example,
is set here.
Protection and monitoring functions (Page 145)
The application-specific functions allow you to
control a motor holding brake or implement a
higher-level pressure or temperature control
using the technology controller, for example.
Application-specific functions (Page 154)
The safety functions are used in applications
that must fulfill special requirements in terms of
functional safety.
Safe Torque Off (STO) safety function
(Page 177)
The extended safety functions monitor the drive
speed.
The extended safety functions are described in
the "Safety Integrated Function Manual", also
refer to Section: Manuals for your converter
(Page 292)
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
Converter with control units CU240D-2