What it means
A35904 is raised when an error occurs while the non-volatile memory (EEPROM) on a Terminal Module (TM) is being accessed. The manuals for the G130, G150, S120 and S150 describe the condition for the Terminal Module component; depending on how the drive is configured, the same condition can also be issued as a fault or as a message without any reaction.
Why it appears
- The Terminal Module registers an error while its non-volatile memory is being accessed.
What to check
- Replace the Terminal Module.
Acknowledging and restarting
As an alarm, A35904 requires no acknowledgment. If the drive issues the same condition as a fault, it must be acknowledged immediately by switching the power off and on (POWER ON).
The same on every family
Every manual that describes A35904 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Hardware/software error (1) | Terminal Module (TM) | SINAMICS S120, S150 List Manual · p. 3241 |
| G130, G150 | NONE | NONE | Hardware/software error (1) | Terminal Module (TM) | SINAMICS G130, G150 List Manual · p. 1904 |
The drives this code lives on
A35904 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does A35904 mean on a SINAMICS drive?
The drive hit an error while accessing the non-volatile memory (EEPROM) on a Terminal Module (TM). The manuals for G130, G150, S120 and S150 describe the condition identically.
How do I clear A35904?
The only remedy the manuals give is to replace the Terminal Module. As an alarm the message needs no acknowledgment; as a fault it is acknowledged immediately by switching the power off and on (POWER ON).
Can A35904 also appear as a fault?
Yes. Depending on the drive configuration, the same condition can be issued as an alarm, as a fault, or with no reaction at all.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the A35xxx group · SINAMICS manuals · Siemens manuals