What it means
F36804 is raised when the drive reads out the program memory of the DRIVE-CLiQ Hub Module (Terminal Board, TB) and the checksum read back differs from the checksum stored at POWER ON. The program memory on the Hub Module has therefore returned a wrong checksum. Depending on the drive configuration, the same condition can also be signalled as an alarm or as a message without any automatic reaction.
Why it appears
- A checksum error has occurred when reading out the program memory on the DRIVE-CLiQ Hub Module — the checksum read back is different from the checksum stored at POWER ON.
What to check
- Check that the permissible ambient temperature for the component is maintained.
- Replace the DRIVE-CLiQ Hub Module.
Reading the message value
- The drive stores the fault value in r0949, which is to be interpreted hexadecimal: it is the difference between the checksum at POWER ON and the actual checksum.
Parameters the manual names
- r0949 — fault value of this message: read it as a hexadecimal number; it tells you the difference between the checksum at POWER ON and the actual checksum of the Hub Module program memory.
Acknowledging and restarting
The drive takes no automatic action in response to this fault. The message is acknowledged with POWER ON: the affected component must be powered down and powered up again before the fault clears. In the variants where the condition is issued as an alarm or as a plain message, no acknowledgement is required.
The same on every family
Every manual that describes F36804 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | IMMEDIATELY (POWER ON) | Hardware/software error (1) | Terminal Board (TB) | SINAMICS S120, S150 List Manual · p. 3252 |
| G130, G150 | NONE | IMMEDIATELY (POWER ON) | Hardware/software error (1) | Terminal Board (TB) | SINAMICS G130, G150 List Manual · p. 1914 |
The drives this code lives on
F36804 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 fault F36804 (Hub: Checksum error) mean on a SINAMICS drive?
A checksum error occurred while the program memory on the DRIVE-CLiQ Hub Module was being read out. The checksum read back differs from the one stored at POWER ON.
How do I fix F36804?
First check that the permissible ambient temperature for the component is maintained. If the fault remains, replace the DRIVE-CLiQ Hub Module.
How is F36804 acknowledged and reset?
The drive takes no automatic action, and the message requires a POWER ON: power the affected component down and up again to clear it. When the condition is configured as an alarm or as a plain message, no acknowledgement is needed.
What does the fault value of F36804 show?
In r0949, interpreted hexadecimal, it is the difference between the checksum at POWER ON and the actual checksum.
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 F36xxx group · SINAMICS manuals · Siemens manuals