Siemens SINAMICS G120C DP User Manual

Increasing the drive availability
The kinetic bu󹪜ering converts the kinetic energy of the load into electrical energy to bu󹪜er
short-term power failures.
Kinetic bu󹪜ering (Vdc min control) (Page350)
The "Flying restart" function permits the fault-free switching on of the motor while it is still
turning.
Flying restart – switching on while the motor is running (Page346)
For active automatic restart, after a power failure, the converter attempts to automatically
restart the motor and to acknowledge any faults that occur.
Automatic restart (Page348)
Energy saving
For standard induction motors, the e󹪟ciency optimization reduces the motor losses in the
partial load range.
E󹪟ciency optimization (Page352)
If necessary, the main contactor control disconnects the converter from the power system
and so reduces the converter losses.
Line contactor control (Page355)
The converter calculates how much energy controlled converter operation saves when
compared to mechanical 󹪞ow control (e.g. throttle).
Calculating the energy saving for 󹪞uid 󹪞ow machines (Page357)
8.2 Brief description of the parameters
Overview
The brief parameter description provides the most important information for all of the
parameters that are assigned to a certain converter function.
If the number of parameter indices depends on the data sets, then the parameter index is
shown in an abbreviated form.
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Figure8-1 Brief parameter description
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Advanced commissioning
8.2Brief description of the parameters
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 185

Siemens SINAMICS G120C DP Specifications

General

Protection Rating	IP20
Frequency Range	0 to 650 Hz
Control Modes	V/f, sensorless vector control
Communication Interfaces	PROFIBUS DP
Ambient Temperature	-10 to +50 °C (without derating), -10 to +60 °C (with derating)
Overload Capacity	150 % rated current for 60 s, 200 % rated current for 3 s
Storage Temperature	-40 to +70 °C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Output Voltage	0 V to Supply Voltage