Siemens SINAMICS G220 - 8 Commissioning (Hardware); Commissioning after a Long Storage Time

Commissioning (hardware)
8
8.1 Commissioning after a long storage time
Overview
If the converter has been out of operation for too long, you must form the DC link capacitors
before connecting the full line voltage to the converter.
Forming can be omitted if the line voltage is applied to the converter once a year for one
hour.
Requirement
Form the DC link capacitors in the following cases:
• The converter has been non-operational for longer than one year.
• The converter is commissioned more than one year after its date of manufacture.
The date of manufacture of the converter is coded in positions 3 - 6 of the serial number.
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Figure8-1 Date of manufacture in the serial number (example, April 21, 2013)
Procedure
• Form the DC link capacitors by connecting power to the converter as shown below:
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Figure8-2 Forming the DC link capacitors
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 203