Installation - Siemens Sinamics S120 Manual

NOTICE
Damage in operation due to insufficiently rated DC link busbars
The DC link busbars of the individual components have different current ratings. If the
current flowing through a DC link busbar is higher than the current specified for the busbar,
the component will heat up and may sustain damage as a result of overheating.
• When designing a drive line-up, make sure that the current ratings of the individual
6.5.2.2

Installation

Always connect the lower DC link busbars first, then the upper DC link busbars and finally
the 24 V busbars.
Required tools:
● Slot-head screwdriver (1 x 5.5) for releasing the protective cover
● Screwdriver Torx T20 for the DC link screws
● Pliers for removing the side covers of the DC link protective covers
Power Units in Booksize C/D-Type Format
Manual, 01/2017, 6SL3097-4AC20-0BP1
components are adequate for the application, or reduce the load current if necessary.
Alternatively, you can use reinforced DC link busbars (Page 80).
Cabinet design
6.5 Electrical connection
95