Siemens SINAMICS G120C User Manual

Default settings after selecting the application class Dynamic Drive Control
Selecting application class Dynamic Drive Control adapts the structure of the vector control and
reduces the setting options:
 Vector control after
selecting the applica‐
tion class Dynamic
Drive Control
Vector control without se‐
lecting an application class
Hold or set the integral component of the
speed controller
Not possible Possible
Acceleration model for precontrol Default setting Can be activated
Motor data identi󹪝cation at standstill or with
rotating measurement
Shortened, with op‐
tional transition into
operation
Complete
8.20.3.2 Optimizing the speed controller
Optimum control response - post optimization not required
Preconditions for assessing the controller response:
• The moment of inertia of the load is constant and does not depend on the speed
• The converter does not reach the set torque limits during acceleration
• You operate the motor in the range 40%…60% of its rated speed
If the motor exhibits the following response, the speed control is well set and you do not
have to adapt the speed controller manually:
W
The speed setpoint (broken line) increases with the set ramp-up
time and rounding.
The speed actual value follows the setpoint without any over‐
shoot.
Advanced commissioning
8.20Motor control
SINAMICS G120C Converters
312 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