Siemens SINAMICS S220

Procedure
Proceed as follows to calculate the current load of the DC link busbars:
1. Add the DC link currents I
DC link
of the connected Motor Modules. The DC link current values
are listed in the technical data of the Motor Modules.
2. Check whether the continuous current-carrying capacity of the DC link busbars is exceeded.
– The maximum current-carrying capacity of the DC link busbars di󹪜er for the various
components. You can take the values from the following table:
DC link busbar or bridge Continuous current-carry‐
ing capacity [A]
1)
Smart Line Modules 100mm 200
Motor Modules 50mm
with 4mm DC link bridges
100
Motor Modules 50mm
with 6mm DC link bridges
(Article No. 6SL3162-2BB00-0AA0)
200
Motor Modules 100mm 200
Motor Modules 150mm - 200mm 250
DC link components 100
1)
The continuous current-carrying capacity speci󹪝ed here applies to an ambient temperature of
up to 40°C. From
40°C to 55°C, the continuous current-carrying capacity is reduced by 2.67% per °C.
For the planned con󹪝guration, if the current load to be assumed exceeds the continuous
current-carrying capacity of the DC link busbars, then the following solution is available to
con󹪝gure the drive line-up:
• Center infeed: Con󹪝guration with infeed at the center and the Motor Modules and DC link
components mounted to the left and right
Mounting
5.2Layout of the components
Booksize power units
80 Equipment Manual, 09/2023, A5E53307519B AA