Reactor, Filter And Cable Resistance At The Converter Output; Motor Control - Siemens SINAMICS G120X Operating Instructions Manual

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Table of Contents

Advanced commissioning

Motor control

The converter has two alternative methods to ensure the motor speed follows the configured

speed setpoint:

● U/f control

● Vector control

Reactor, filter and cable resistance at the converter output

Components between the converter and the motor influence the closed-loop control quality of

the converter:

● Output reactor

In the factory setting, the converter assumes for the motor data identification that no output

reactor is connected at the converter output.

● Motor cable with unusually high cable resistance.

For the motor data identification, the converter assumes a cable resistance = 20 % of the

stator resistance of the cold motor.

Function description

You must correctly set the components between the converter and motor to achieve an

optimum closed-loop control quality

1. Set p0010 = 2.

2. Set the cable resistance in p0352.

3. Set p0230 to the appropriate value.

4. Set p0235 to the appropriate value.

5. Set p0010 = 0.

6. Carry out the quick commissioning and the motor identification again.

You have set the reactor, filter and cable resistance between the converter and motor.

Quick commissioning using the BOP-2 operator panel (Page 159)

Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC

SINAMICS G120X converter