Siemens SINAMICS S120

DC link components
8.4 Braking units for 100 kW Basic Line Modules
Booksize Power Units
520 Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
8.4.3.3
Switch S1
Switch S1 on the MASTERDRIVES braking unit is used to set the switch-on threshold. It is
located behind the front panel.
Switch S1 should be set to "high" (factory setting) in order to operate the braking unit on a
SINAMICS S120 drive line-up in booksize format. This means that the switch-on threshold is
at 757 V DC.
For more information, refer to the operating instructions for the MASTERDRIVES braking
unit.
8.4.4
Connection example
Figure 8-14 Connection example for MASTERDRIVES braking unit