Siemens SINAMICS S120 Equipment Manual page 310

Maintenance and servicing
6.5 Reforming the DC link capacitors
Rating plate
Date of manufacture
The date of manufacture can be determined as follows:
Table 6- 4
310
Year and month of manufacture
Character Year of manufacture
S
T
U
V
W
X
Character
2004
2005
2006
2007
2008
2009
Month of manufacture
1 to 9 January to September
O October
N November
D December
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A