Siemens SINAMICS S120 Equipment Manual page 552

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10.3 Forming the DC link capacitors
Date of manufacture
The date of manufacture can be determined from the following assignment to the serial
number (e.g. T-S92067000015):
Table 10-1 Production year and month
Character
S
T
U
V
The serial number is found on the rating plate.
When DC link capacitors are formed, a defined voltage is connected to them and a defined
current flows so that the appropriate capacitor characteristics are re-established for them to
be re-used as DC link capacitors.
552
Year of manufacture
2004
2005
2006
2007
Character
1 to 9
O
N
D
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
Month of manufacture
January to September
October
November
December
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