Siemens sinamics G120 Operating Instructions Manual page 226

Low voltage inverters chassis devices with cu250s-2 control units and encoder evaluation

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Table of Contents

Advanced commissioning

6.5 Motor control

Default setting after selecting the application class Standard Drive Control

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, transition from closed-loop starting current control into U/f control

with voltage boost depending on the load.

● Soft starting is not possible.

● Fewer parameters

The complete function diagrams 6850 ff. for application class Standard Drive Control are

provided in the List Manual.

Default setting of the U/f control after selecting Standard Drive Control

Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE

Converter with CU250S-2 Control Unit