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9.3
Forming the DC link capacitors
Overview
DC link capacitors must be reformed for Line Modules that have been in storage for more than
2 years. If this is not performed, the components could be damaged when they are switched on.
Requirement
DC link capacitors of components for which the storage period of 2 years has been exceeded
must be reformed.
• The storage period is calculated from the date of manufacture and not from the date that the
equipment was shipped.
• Refer to the serial number on the rating plate for the date of manufacture.
Made in Germany
①
Designation
②
Article number
③
Year of manufacture (here O = 2022) and month of manufacture (here 2 = February)
Figure 9-1
Rating plate (example: Smart Line Module 16 kW)
Table 9-2
Year and month of manufacture on the rating plate
Year of manufacture
Month of manufacture
Character
Year
Character
Month
O
2022
1 ... 9
January to September
P
2023
O
October
Q
2024
N
November
R
2025
D
December
S
2026
Service and maintenance
9.3 Forming the DC link capacitors
Booksize power units
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
149