Connecting A Motor Holding Brake; Monitoring The Temperature Of The Braking Resistor - Siemens SINAMICS G120C Operating Instructions Manual

4.11

Connecting a motor holding brake

Connecting a motor holding brake
You can use any converter digital output to control the motor holding brake.
If the current or voltage rating of the digital output is not sufficient, then you must control
the motor holding brake through a coupling relay.
U
1
U
2
Figure 4-47
To define which of the digital outputs of the converter is used to control the motor holding
brake, you must interconnect the corresponding digital output with the brake control signal:
• Digital output DO 0: p0730 = 52.12
• Digital output DO 1: p0731 = 52.12
4.12

Monitoring the temperature of the braking resistor

Fire caused by an unsuitable or incorrectly installed braking resistor
Using an unsuitable or improperly installed braking resistor can cause fires and smoke to
develop. Fire and smoke development can cause severe personal injury or material damage.
• Only use braking resistors that are approved for the converter.
• Install the braking resistor in accordance with regulations.
• Monitor the temperature of the braking resistor.
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
Power supply for the interface relay
Power supply for the motor holding brake
Connect the motor holding brake to digital output DO 0 of the converter via interface
relay K1.
WARNING
4.12 Monitoring the temperature of the braking resistor
Installing
117