Siemens SINAMICS G120 Operating Instructions Manual page 250

Setting functions
8.5 Motor control
● The inverter calculates the torque limits matching the current limit that you have set for
the basic commissioning.
Regardless of it, you can also set additional positive and negative torque limits or limit the
power of the motor.
● The inverter has a preset speed controller with self-optimization (rotating measurement).
If you want to continue to optimize this setting, follow the instructions further down in this
chapter.
Select encoderless vector control
Procedure
Proceed as follows to select encoderless vector control using STARTER:
1. Go online
2. Select closed-loop speed control without encoder in the "Speed controller" screen form.
You have selected encoderless vector control.
Proceed as follows to select encoderless vector control using BOP-2:
1. In the "Parameters" menu, go to p1300
2. Set p1300 = 20.
You have selected encoderless vector control.
Select vector control with encoder
Procedure
Proceed as follows to set speed control with encoder as control mode using STARTER:
1. Go online.
2. Select speed control with encoder in the "Speed controller" or "V/f control" mask.
You have selected speed control with encoder using STARTER.
Procedure
Proceed as follows to set speed control with encoder as control mode using an operator
panel:
1. In the "Parameters" menu, select p1300.
2. Set p1300 = 21.
You have selected speed control with encoder using an operator panel.
250
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB