Siemens SINAMICS G220 - Compound Braking

14.11.9 Compound braking
Overview
The converter uses compound braking to brake the load along a de󹪝ned ramp-down ramp
without the need for a braking resistor or a converter with energy recovery.
Requirement
Suitable for applications in which the motor must be braked electrically but neither a converter
with energy recovery nor a braking resistor is available.
Typical applications are:
• Centrifuges
• Saws
• Grinding machines
• Horizontal conveyors
Applications involving suspended loads, e.g. hoisting gear/cranes or vertical conveyors, are
not permitted.
The compound braking function is not possible for a power failure.
Additional requirements:
• Compound braking is only possible with U/f control.
• The "Flying restart" function is deactivated.
• DC braking is deactivated.
NOTICE
Overheating of the motor due to compound braking
Compound braking can subject the motor to thermal overload. A thermal overload damages
the motor.
• Monitor the motor temperature.
• Allow the motor to cool down between braking operations.
Functions
14.11Drive functions
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 601