Motor Holding Brake - Siemens SINAMICS G120 Operating Instructions Manual

Functions
8.9 Application-specific functions
8.9.2.5

Motor holding brake

The motor holding brake prevents the motor turning when it is switched off. The inverter has
internal logic to control a motor holding brake.
The motor holding brake control inside the inverter is suitable for the following typical
applications:
● Horizontal, inclined and vertical conveyors
● Pumps
● Fans
Connecting the motor holding brake
You have to define which of the digital outputs is to be used for controlling the motor holding
brake function.
There are two digital outputs to choose from, for example, the motor holding brake can be
connected to the inverter using digital output 0 (DO 0) on terminals 19 and 20.
The inverter supplies the control for the motor holding brake.
You have to supply the following equipment:
● A motor holding brake suitable for the attached motor and the purposes of the
● A power supply for the motor holding brake.
● A relay to allow the digital output to enable or disable the motor holding brake.
Figure 8-16
216
application.
BO: r0052.12
Simplified diagram of motor holding brake connected to DO 0 of the inverter
p0730
52.12
p0731
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
SINAMICS G120C Inverter