The inverter boosts the voltage corresponding to the starting currents p1310 … p1312.
Parameter Description
p1310 Starting current (voltage boost) permanent (factory setting 50%)
Compensates for voltage drops caused by long motor cables and the ohmic losses in
the motor.
After commissioning, depending on the motor power rating and the technological appli‐
cation p0501, the inverter sets p1310.
p1311 Starting current (voltage boost) when accelerating (factory setting 0%)
Provides additional torque when the motor accelerates.
After commissioning, depending on the motor power rating and the technological appli‐
cation p0501, the inverter sets p1311.
p1312 Starting current (voltage boost) when starting (factory setting 0%)
Provides additional torque, however, only when the motor accelerates for the first time
after it has been switched on ("break loose torque").
You can find more information about this function in the parameter list and in function diagram
6851 of the List Manual.
Advanced commissioning
6.19 Motor control
SINAMICS G120C converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF 267
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