Siemens SINAMICS S220

5SBOTGPSNFSPS
HFOFSBUPS
5PUIFTZTUFN
&YBNQMF*5OFUXPSLXJUIPVUOFVUSBMDPOEVDUPS
&YBNQMF*5OFUXPSLXJUIOFVUSBMDPOEVDUPS
5SBOTGPSNFSPS
HFOFSBUPS
5PUIFTZTUFN
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Figure4-3 IT system
4.8 Conditions for the line connection
Description
Table 4-3 Conditions for connecting Smart Line Modules to the line supply
Component Description
1)
Smart Line Module Operation on line supplies from S
K line
/P
rated
≥ 30
1)
S
K line
= short-circuit power of the line supply; P
rated
= rated power of the Line Module
4.9 Power failure-bu󹪜ering concept
Description
The system comprising Line Modules and Motor Modules must be dimensioned so that at the
rated power there is no functional restriction (3ms of the line supply dip or interruption
according to IEC 61800-3 (2017)).
General statements cannot be made regarding the bu󹪜er times. These can be extended
a multiple number of times depending on the particular drive system and the operating
conditions. Signi󹪝cantly longer bu󹪜er times can be obtained when components operate in
either the motoring or generating mode. The existing installation must be assessed on a
case-for-case basis.
Application planning
4.9Power failure-bu󹪜ering concept
Booksize power units
46 Equipment Manual, 09/2023, A5E53307519B AA