Siemens SINAMICS G120C User Manual

The converter provides the control for a motor holding brake. The motor holding brake holds
the motor in position when it is switched o󹪜.
Motor holding brake (Page245)
The free function blocks permit con󹪝gurable signal processing within the converter.
Free function blocks (Page249)
You can select in which physical units the converter represents its associated values.
Selecting physical units (Page251)
Safety functions
The safety functions ful󹪝ll increased requirements regarding the functional safety of the drive.
Safe Torque O󹪜 (STO) safety function (Page255)
Setpoints and setpoint processing
The setpoint generally determines the motor speed.
Setpoints (Page270)
The setpoint processing uses a ramp-function generator to prevent speed steps occurring and
to limit the speed to a permissible maximum value.
Setpoint processing (Page279)
Technology controller
The technology controller controls process variables, e.g. pressure, temperature, level or
󹪞ow. The closed-loop motor control receives the setpoint either from the higher-level control
or from the technology controller.
PID technology controller (Page289)
Motor control
The closed-loop motor control ensures that the motor follows the speed setpoint. You can
choose between various control modes.
Motor control (Page299)
The converter provides several methods to brake the motor electrically. During electrical
braking, the motor develops a torque that reduces the speed down to standstill.
Electrically braking the motor (Page324)
Drive protection
The protection functions prevent damage to the motor, converter and driven load.
Overcurrent protection (Page336)
Converter protection using temperature monitoring (Page337)
Motor protection with temperature sensor (Page340)
Motor protection by calculating the temperature (Page342)
Motor and converter protection by limiting the voltage (Page344)
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Advanced commissioning
8.1Overview of the converter functions
SINAMICS G120C Converters
184 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK

Siemens SINAMICS G120C Specifications

General

Communication Interfaces	PROFINET, PROFIBUS, USS, Modbus RTU
Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Power Range	0.55 kW to 132 kW
Voltage Range	380 V to 480 V
Output Voltage	0 V to Supply Voltage
Frequency Range	0 Hz to rated output frequency
Control Modes	Vector control with encoder
Protection	Overload, overvoltage, undervoltage, short circuit, ground fault
Relative Humidity	5% to 95%, non-condensing
Altitude	Up to 2000 m without derating