Siemens SINAMICS G120 Operating Instructions Manual page 295

Characteristics after selecting the application class Standard Drive Control
Selecting application class Standard Drive Control reduces the number of characteristics and
the setting options:
● A linear and a parabolic characteristic are available.
● Selecting a technological application defines the characteristic.
● The following cannot be set - ECO mode, FCC, the programmable characteristic and a
specific voltage setpoint.
①
②
Figure 6-49
Table 6-56 Linear and parabolic characteristics
Requirement
The required torque is in‐
dependent of the speed
The required torque in‐
creases with the speed
Additional information on the characteristics can be found in the parameter list and in the
function diagrams 6851 ff of the List Manual.
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
The closed-loop starting current control optimizes the speed control at low speeds
The inverter compensates the voltage drop across the motor stator resistance
Characteristics after selecting Standard Drive Control
Application examples
Conveyor belts, roller conveyors, chain
conveyors, eccentric worm pumps, com‐
pressors, extruders, centrifuges, agita‐
tors, mixers
Centrifugal pumps, radial fans, axial fans Lower losses in the motor
Remark
-
and inverter than for a lin‐
ear characteristic.
Advanced commissioning
6.21 Motor control
Character‐ Parameter
istic
Linear p0501 = 0
Parabolic p0501 = 1
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