Siemens F07904 fault code meaning

Series: G130-G150, S120-S150

External armature short circuit: Contactor feedback "closed" missing

converter

Meaning: After the contactor closed, the "Closed" feedback signal (p1235) (r1239.1 = 1) was not received within the monitoring time (p1236).

Possible causes

Source: SINAMICS G130_G150 P1668; SINAMICS S120_S150 P2820

Series: G220

External armature short circuit: Contactor "closed" feedback missing

converter

Meaning: The binary signal sink "External armature short circuit: contactor feedback" (c1235) did not issue the "Closed" signal (r1239.1 = 1) within the monitoring time (p1236) when the contactor closed.

Possible causes

Source: SINAMICS G220 Converter P1374

Series: S220

Infeed: Reserved

converter

Meaning: Reserved

Possible causes

Source: SINAMICS S220 Converter P2357