What it means
Fault F37036 reports an internal overtemperature of the HF Damping Module: the temperature inside the module has risen above the permissible temperature limit. The stored fault value shows which part of the module overheated — the control electronics range or the power electronics range.
Why it appears
- Insufficient cooling, for example a fan failure.
- The module is overloaded.
- The ambient temperature is too high.
What to check
- Check whether the fan is running.
- Check the fan elements.
- Check whether the ambient temperature is within the permissible range.
Reading the message value
- The drive stores the fault value in r0949; interpret it in binary.
- Bit 0 = 1: Control electronics range.
- Bit 1 = 1: Power electronics range.
Parameters the manual names
- r0949 — read the fault value of this fault here and interpret it in binary: a set bit 0 means the control electronics range overheated, a set bit 1 means the power electronics range overheated.
Acknowledging and restarting
Acknowledgement only succeeds after the module has cooled down. This fault can only be acknowledged once the permissible temperature limit minus 5 K has been undershot.
Remove the cause, let the temperature inside the HF Damping Module drop below this threshold, and only then acknowledge the fault.
The same on every family
Every manual that describes F37036 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Power electronics faulted (5) | None | SINAMICS S120, S150 List Manual · p. 3263 |
The drives this code lives on
F37036 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F37036 mean on a SINAMICS S120 or S150?
It reports internal overtemperature: the temperature inside the HF Damping Module has exceeded the permissible temperature limit, typically because of insufficient cooling, overload or an ambient temperature that is too high.
Why will fault F37036 not acknowledge?
Acknowledgement is blocked until the module has cooled down: the fault can only be acknowledged once the permissible temperature limit minus 5 K has been undershot.
How do I clear fault F37036?
Check that the fan is running and that the fan elements are intact, verify the ambient temperature is within the permissible range, let the module cool below the limit minus 5 K, then acknowledge the fault.
What is the fault value of F37036 in r0949?
Interpret r0949 in binary: bit 0 = 1 means the control electronics range overheated, bit 1 = 1 means the power electronics range overheated.
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