Dynamic Braking - Siemens SINAMICS G115D Operating Instructions Manual

Distributed drive

Hide thumbs Also See for SINAMICS G115D:

Table of Contents

Advanced commissioning

6.18 Electrically braking the motor

Dynamic braking

Typical applications for dynamic braking require continuous braking and acceleration

operations or frequent changes of the motor direction of rotation:

• Horizontal conveyors

• Vertical and inclined conveyors

• Hoisting gear

Principle of operation

The DC link voltage increases as soon as the motor supplies regenerative power to the

converter when braking. Depending on the DC link voltage, the converter outputs the

regenerative power to the integrated braking resistor. The built-in braking resistor converts

the regenerative power into heat, therefore preventing DC link voltages > Vdc_max.

Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B

SINAMICS G115D distributed drive