Connecting The External Braking Resistor - Siemens SINAMICS G115D Operating Instructions Manual

Distributed drive for conveyor applications

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Minimum cable cross-section: 4 mm

PE terminal tightening torque: 1.5 Nm (13.3 lbf.in)

Connecting the external braking resistor

Electric shock as a result of a residual charge in power components

After the power supply has been switched off, it takes up to 5 minutes until the capacitors in the

converter have discharged so that the residual charge is at a non-hazardous level. Therefore,

touching the converter immediately after powering off can result in electric shock due to

residual charge in the power components.

• Check the voltage at the converter connections before you connect the external braking

Connection overview

1. Switch off all power supplies (line supply and external 24 V power supply) to the converter.

2. Wait 5 minutes to allow the converter to discharge and check that no voltage is present at the

converter connections.

3. Release the retaining screws (6 x M4) on the Electronic Module by using a 3 mm allen key, and

remove the module.

SINAMICS G115D Wall Mounted distributed drive

Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA

5.17 Connecting the external braking resistor