Commissioning After A Long Storage Time - Siemens Sinamics G120 Hardware Installation Manual

6.2

Commissioning after a long storage time

If the inverter was not operational for a longer period of time, it is possible that you must form
the DC link capacitors before switching on.
Form the DC link capacitors in the following cases:
● If the inverter was not operational for longer than one year.
● If the date of manufacture of the inverter was more than one year ago when
commissioning the drive system for the first time. The date of manufacture is coded in the
serial number (see the next paragraph).
You form the DC link capacitors by connecting power to the inverters as shown below.
Image 6-1
Data of manufacture of the inverter
The date of manufacture of the inverter is encrypted in positions 3 - 6 of the serial number.
Image 6-2
Power Modules PM240
Hardware Installation Manual, 07/2016, A5E36985441C AA
Forming the DC link capacitors
Data of manufacture in the serial number (example, April 21, 2013)
Service and maintenance
6.2 Commissioning after a long storage time
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