What it means
F37802 means that a time slice overflow has occurred in the HF Damping Module: one of the module's internal processing time slices has overflowed. Depending on the drive configuration, the same condition can also be signalled as an alarm (A) or without any reaction (N) instead of as this fault.
Why it appears
- A time slice overflow has occurred in the HF Damping Module.
What to check
- Carry out a
POWER ON (switch-off/switch-on)
for all components. - Upgrade the firmware to a later version.
- If the fault still occurs afterwards, contact Technical Support.
Acknowledging and restarting
Acknowledge this fault immediately. The first remedy step — a POWER ON, i.e. switching all components off and on again — is also how the drive is brought back up: after the power cycle the fault is acknowledged and the drive restarts. If the time slice overflow returns after the POWER ON, upgrade the firmware to a later version and power up again; should the fault still appear, contact Technical Support.
The same on every family
Every manual that describes F37802 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Hardware/software error (1) | None | SINAMICS S120, S150 List Manual · p. 3269 |
The drives this code lives on
F37802 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F37802 mean on a SINAMICS drive?
It means the HF Damping Module has reported a time slice overflow — one of its internal processing time slices could not be completed in time. The drive treats this as an internal hardware/software error of the module.
How do I clear fault F37802?
Carry out a POWER ON (switch-off/switch-on) for all components. If the fault comes back, upgrade the firmware to a later version and, if it still persists, contact Technical Support.
Does F37802 also appear as an alarm?
Yes. Depending on the drive configuration, the same condition can also be signalled as an alarm (A) or without any reaction (N) instead of as this 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 F37xxx group · SINAMICS manuals · Siemens manuals