Siemens SINAMICS S120 Equipment Manual page 343

Components for the forming circuit (recommendation)
• 1 fuse switch 3-phase 400 V/10 A
• 3 incandescent lamps 230 V/100 W
• Various small components, such as lamp socket, cable 1.5 mm
Procedure
• Before you form the DC link capacitors, the DC link bridge must be removed.
• It is not permissible that the drive unit receives a power-on command (e.g. from the
• While forming, the incandescent lamps must become less bright or go completely dark.
• Connect the forming circuit; the duration depends on the time for which the Motor Module
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3
Danger
Dangerously high voltage levels are still present in the cabinet up to 5 minutes after it has
been disconnected due to the DC link capacitors. It is only permissible to work on the
equipment or at the DC link terminals after this time has expired.
Note
Line Modules must be pre-charged from the connected Motor Module.
keyboard, BOP20 or terminal strip).
If the incandescent lamps continue to be brightly lit, then there is either a fault in the drive
unit or in the wiring.
was not operational.
Service and Support Booksize
9.3 Reforming the DC link capacitors
, etc.
2
9-5