What it means
F05056 reports that the power units working together in a parallel circuit do not all carry the same EEPROM version. The drive compares the versions and trips as soon as it finds a difference. The message value names the parameter in which the first different version number was detected; the same value is held in r0949 and must be read as a decimal number. The manuals add that, for parallel circuit configurations, only power units with identical EEPROM versions may be used.
Why it appears
- The EEPROM versions of the power units connected in parallel do not match.
What to check
- Read the fault value in r0949 as a decimal number: it identifies the parameter in which the first differing version number was detected.
- Use power units with the same EEPROM version, so that every unit in the parallel circuit carries an identical EEPROM version.
Reading the message value
- The message value is the parameter in which the first different version number was detected.
- The fault value in r0949, interpreted as a decimal number, contains this parameter. No bit-by-bit decoding is given.
Parameters the manual names
- r0949 — fault value: read it as a decimal number to see the parameter in which the first different power unit EEPROM version was detected.
Acknowledging and restarting
The drive's fault response is OFF2, so the drive coasts down and must be acknowledged before it will start again. The fault is acknowledged immediately: once all power units in the parallel circuit use the same EEPROM version, acknowledge the message and restart the drive.
The same on every family
Every manual that describes F05056 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 (NONE) | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | Power Module | SINAMICS S120, S150 List Manual · p. 2750 |
| G130, G150 | OFF2 (NONE) | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | Power Module | SINAMICS G130, G150 List Manual · p. 1523 |
The drives this code lives on
F05056 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 SINAMICS fault F05056 mean?
It means that in a parallel circuit the power units' EEPROM versions differ. The drive switches off (OFF2) and reports the parameter in which the first different version number was detected.
How do I fix fault F05056?
Use power units with the same EEPROM version — for parallel circuit configurations only power units with identical EEPROM versions are permitted. Afterwards acknowledge the fault and restart the drive.
Where does F05056 show which parameter signalled the version difference?
In the fault value in r0949, interpreted as a decimal number. It contains the parameter in which the first different version number was detected.
Which SINAMICS drives can issue F05056?
The Siemens list manuals describe it for SINAMICS G130, G150, S120 and S150, in each case for power units in a parallel circuit.
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 F05xxx group · SINAMICS manuals · Siemens manuals