Siemens SINAMICS S120 Manual page 110

Electrical installation
4.6 Connections
Preparatory steps
Before starting any cabling or connection work in the Cabinet Modules, ensure that the
following measures are performed:
● Disconnect the cabinet unit from the power supply.
● Observe the "five safety rules".
● Allow unimpeded access to the necessary components in the Cabinet Module (if
Safety and EMC
Hazardous electrical voltage
Live parts can be touched if covers are not remounted.
All covers removed while the cables were being routed must be replaced before the
Cabinet Module is commissioned!
Note
Internal cabinet wiring
When routing cables, utmost care must be taken not to change the internal cabinet wiring!
Note
EMC-compliant shielding
The shield plates must be replaced before the cabinet is commissioned in order to ensure
that shielding is EMC-compliant!
The motor cable shields must be secured to the EMC shield bus (option M70) and the PE
cables to the PE busbar!
108
necessary, remove the covers).
DANGER
Cabinet Modules
Manual, 03/2013, A5E03263538A