Connect The Temperature Contact Of The Braking Resistor; Connecting A Motor Holding Brake To A Safe Brake Relay - Siemens Sinamics G120 Hardware Installation Manual

Spare parts and accessories
8.3 Optional accessories
8.3.7.1

Connect the temperature contact of the braking resistor

Monitoring the temperature of the braking resistor
Procedure
Proceed as follows to monitor the braking resistor temperature:
1. Connect the temperature monitoring system of the braking resistor (terminals T1 and T2
on the braking resistor) to a free digital input at the Control Unit of the inverter.
Image 8-13
2. When commissioning the drive, define the function of the digital input used as external
fault, using p2106.
As an example with temperature monitoring via digital input DI 3: p2106 = 722.3.
You have ensured that the temperature is monitored.
8.3.8

Connecting a motor holding brake to a Safe Brake Relay

The inverter uses the Brake Relay to control the motor holding brake. Two types of Brake
Relay exist:
● The Brake Relay controls the motor holding brake
● The Safe Brake Relay controls a 24 V motor holding brake and monitors the brake control
for short-circuit or cable breakage.
104
Example: Temperature monitoring of the braking resistor via digital input DI 3 on the
Control Unit
Hardware Installation Manual, 07/2016, A5E36985441C AA
Power Modules PM240