U/F Control With Standard Drive Control - Siemens SINAMICS G120C Operating Instructions Manual

3. If the motor does not rotate smoothly, or even remains stationary, increase the voltage boost
p1310 until the motor runs smoothly.
4. Accelerate the motor to the maximum speed with maximum load.
5. Check that the motor follows the setpoint.
6. If necessary, increase the voltage boost p1311 until the motor accelerates without problem.
In applications with a high break loose torque, you must also increase parameter p1312 in
order to achieve a satisfactory motor response.
You have set the voltage boost.
❒
Parameter
Number
r0071
p0310[M]
p1310[D]
p1311[D]
p1312[D]
8.20.2.3

U/f control with Standard Drive Control

Overview
Figure 8-49
Selecting application class Standard Drive Control in the quick commissioning adapts the
structure and the setting options of the U/f control as follows:
• Starting current closed-loop control: At low speeds, a controlled motor current reduces the
tendency of the motor to oscillate.
• With increasing speed, the converter changes from closed-loop starting current control to
U/f control with load-dependent voltage boost.
• The slip compensation is activated.
• Soft starting is not possible.
• Reduced setting options
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
Name
Output voltage, maximum
Rated motor frequency
Starting current (voltage boost) permanent
Starting current (voltage boost) when accelerating
Starting current (voltage boost) when starting
Default setting of the U/f control after selecting Standard Drive Control
Advanced commissioning
8.20 Motor control
Factory setting
Vrms
0 Hz
50%
0%
0%
305