Siemens SINAMICS S220 Equipment Manual page 82

Mounting
5.2 Layout of the components
Procedure
Proceed as follows to calculate the current load of the DC link busbars:
1. Add the DC link currents I
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 differ for the various
For the planned configuration, 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
configure the drive line-up:
• Center infeed: Configuration with infeed at the center and the Motor Modules and DC link
components mounted to the left and right
80
DC link
components. You can take the values from the following table:
DC link busbar or bridge
Smart Line Modules 100 mm
Motor Modules 50 mm
with 4 mm DC link bridges
Motor Modules 50 mm
with 6 mm DC link bridges
(Article No. 6SL3162-2BB00-0AA0)
Motor Modules 100 mm
Motor Modules 150 mm - 200 mm
DC link components
1) The continuous current-carrying capacity specified 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.
of the connected Motor Modules. The DC link current values
Equipment Manual, 09/2023, A5E53307519B AA
Continuous current-carry‐
ing capacity [A]
1)
200
100
200
200
250
100
Booksize power units