Siemens SINAMICS G120 - Page 226

Setting functions
8.1 Overview of the inverter functions
Inverter with CU230P-2 Control Units
226 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Functions relevant to all applications
Functions required in special applications only
The functions that you require in each application are shown
in a dark color in the function overview above.
In the quick commissioning, the parameters of these
functions are assigned an appropriate basic setting, so that
in many cases the motor can be operated without having to
assign any other parameters.
The functions whose parameters you only need to adapt
when actually required are shown in white in the function
overview above.
Inverter control
is responsible for all of the other
inverter functions. Among other things, it defines
how the inverter responds to commands from
the higher-level control system.
Inverter control (Page 227)
The
protection functions
prevent damage to the
motor, inverter and driven load, e.g. using
temperature monitoring or torque monitoring.
Protection functions (Page 259)
The
commands
from the higher-level control are
sent to the inverter via digital inputs or the
fieldbus.
Adapting the terminal strip (Page 93)
Configuring the fieldbus (Page 107)
The
status signals provide signals at the outputs
of the Control Unit via the fieldbus, e.g. the
actual motor speed or the inverter fault signal.
Adapting the terminal strip (Page 93)
Configuring the fieldbus (Page 107)
You must define a
setpoint
, which defines the
motor speed, for example.
Setpoints (Page 238)
Functions
suitable for the application
permit, for
example, a higher-level closed-loop pressure or
temperature control using the technology
controller.
Further, the inverter provides solution options
specifically for applications in the area of
pumps, fans and climate control systems
(HVAC).
Application-specific functions (Page 267)
The
setpoint processing
uses a ramp-function
generator to prevent speed steps occurring and
to limit the speed to a permissible maximum
value.
Setpoint calculation (Page 244)
The
motor closed-loop control
ensures that the
motor follows the speed setpoint. You can select
either closed-loop speed control or U/f control.
Motor control (Page 250)