Siemens SINAMICS S120 Manual page 406

Service and maintenance
11.4 Forming the DC link capacitors
Figure 11-11 Forming circuit for 3-phase AC Power Modules with resistors
Figure 11-12 Forming circuit for 1-phase AC Power Modules with resistors
406
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
AC Drive