What it means
F32804 means that a checksum error occurred while the program memory on the Sensor Module Encoder 2 was being read out: the checksum now read differs from the checksum that applied at POWER ON. The manuals for the G130/G150 and the S120/S150 describe this code identically and name the Sensor Module Encoder 2 as the affected component in both cases. Depending on how the drive is configured, the same condition can also be signalled as an alarm or without any reaction instead of as a fault.
Why it appears
- A checksum error occurred when the program memory on the Sensor Module was read out.
- The checksum read differs from the checksum at POWER ON — the fault value states which memory area is involved and how large the difference is (see fault value below).
What to check
- Carry out a POWER ON: switch the drive off and then on again.
- Upgrade the firmware to a later version (>= V2.6 HF3, >= V4.3 SP2, >= V4.4).
- Check whether the permissible ambient temperature for the component is maintained.
- Replace the Sensor Module.
Reading the message value
- The drive stores the fault value in r0949; interpret it as a hexadecimal value of the form yyyyxxxx hex.
- yyyy: memory area involved.
- xxxx: difference between the checksum at POWER ON and the actual checksum.
Parameters the manual names
- r0949 — fault value: read it out here and interpret it hexadecimal to identify the memory area involved (yyyy) and the difference between the checksum at POWER ON and the actual checksum (xxxx).
Acknowledging and restarting
This fault is acknowledged by a POWER ON — the drive is switched off and switched on again. Because the switch-off/switch-on is also the first remedy step, repeat the power cycle after every corrective action, for example after a firmware upgrade or after replacing the Sensor Module, and observe whether the fault reappears.
What differs between the drive families
Straight from the manuals' own fields — F32804 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Vector: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Hla: OFF1 (NONE, OFF2, OFF3) | POWER ON (IMMEDIATELY) | Hardware/software error (1) | Sensor Module Encoder 2 | SINAMICS S120, S150 List Manual · p. 3115 |
| G130, G150 | OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) | POWER ON (IMMEDIATELY) | Hardware/software error (1) | Sensor Module Encoder 2 | SINAMICS G130, G150 List Manual · p. 1793 |
The drives this code lives on
F32804 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 F32804 mean on a SINAMICS drive?
It reports a checksum error while the program memory on the Sensor Module Encoder 2 was being read out. The checksum read differs from the checksum that applied at POWER ON.
How do I clear fault F32804?
Only a POWER ON clears it, so switch the drive off and on again. If the fault returns, upgrade the firmware, check the ambient temperature of the component and, as the last step, replace the Sensor Module.
What does the F32804 fault value in r0949 tell me?
Interpreted hexadecimal as yyyyxxxx, yyyy identifies the memory area involved and xxxx gives the difference between the checksum at POWER ON and the actual checksum.
Can F32804 also appear as an alarm?
Yes. Depending on the drive configuration, the same condition can also be signalled as an alarm or without any reaction instead of as a fault.
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 F32xxx group · SINAMICS manuals · Siemens manuals