What it means
F34805 carries the title "VSM: EEPROM checksum error". It is raised when the internal parameter data of the Voltage Sensing Module (VSM) is corrupted. The same condition can also be issued as an alarm or with no reaction at all; the drive's configuration decides which form appears.
Why it appears
- The internal parameter data of the Voltage Sensing Module (VSM) is corrupted.
What to check
- Check that the permissible ambient temperature for the component is maintained.
- Replace the Voltage Sensing Module (VSM).
Reading the message value
- The message value is the fault value stored in r0949, which the drive expects to be interpreted hexadecimal.
- 01: EEPROM access error.
- 02: Too many blocks in the EEPROM.
Parameters the manual names
- r0949 — holds the fault value of this message: read it to tell an EEPROM access error (01) apart from too many blocks in the EEPROM (02).
Acknowledging and restarting
Acknowledge the fault immediately. When the drive issues the same condition as an alarm or with no reaction, no acknowledgement is assigned to it either.
What differs between the drive families
Straight from the manuals' own fields — F34805 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: OFF2 (NONE, OFF1) Vector: NONE (OFF1, OFF2, OFF3) | IMMEDIATELY | Hardware/software error (1) | Voltage Sensing Module (VSM) | SINAMICS S120, S150 List Manual · p. 3186 |
| G130, G150 | Vector: NONE (OFF1, OFF2, OFF3) Infeed: OFF2 (NONE, OFF1) | IMMEDIATELY | Hardware/software error (1) | Voltage Sensing Module (VSM) | SINAMICS G130, G150 List Manual · p. 1856 |
The drives this code lives on
F34805 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 F34805 mean?
The message is titled VSM: EEPROM checksum error and means that the internal parameter data of the Voltage Sensing Module (VSM) is corrupted. It is described for SINAMICS G130, G150, S120 and S150.
How do I fix fault F34805?
Check that the permissible ambient temperature for the component is maintained, and replace the Voltage Sensing Module (VSM). The fault itself is acknowledged immediately.
What do the fault values 01 and 02 of F34805 in r0949 mean?
The fault value is interpreted hexadecimal: 01 stands for an EEPROM access error, 02 for too many blocks in the EEPROM.
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 F34xxx group · SINAMICS manuals · Siemens manuals