Siemens F49155 fault code meaning
Siemens / F49155
Series: G130-G150, S120-S150
Cooling unit: power stack adapter firmware version too old
converter
Meaning: The firmware version in the power stack adapter (PSA) is too old to support water cooling.
Possible causes
Source: SINAMICS G130_G150 P2010; SINAMICS S120_S150 P3227