Siemens SINAMICS G120C DP User 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 Name Factory setting
r0071 Output voltage, maximum Vrms
p0310[M] Rated motor frequency 0Hz
p1310[D] Starting current (voltage boost) permanent 50%
p1311[D] Starting current (voltage boost) when accelerating 0%
p1312[D] Starting current (voltage boost) when starting 0%
8.20.2.3 U/f control with Standard Drive Control
Overview
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Figure8-49 Default setting of the U/f control after selecting 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, 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
Advanced commissioning
8.20Motor control
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 305

Siemens SINAMICS G120C DP Specifications

General

Brand	Siemens
Model	SINAMICS G120C DP
Category	Inverter
Language	English