What it means
F37012 reports that the connection to one of the heat sink temperature sensors in the HF Damping Module is interrupted. The bit pattern stored in r0949 shows which module raised the fault, so you can tell whether the wire break was detected on the HF Damping Module itself or on the HF Choke Module (reactor module).
Why it appears
- One of the heat sink temperature sensors of the HF Damping Module can no longer be read because its connection has been interrupted.
What to check
- Contact the manufacturer — the manual describes no other remedy and no additional checks for this fault.
Reading the message value
- The drive stores the fault value in r0949; interpret it as a binary number.
- Bit 0: HF Damping Module
- Bit 1: HF Choke Module
Parameters the manual names
- r0949 — the fault value; read it as a binary number to determine whether the wire break was detected on the HF Damping Module (bit 0) or on the HF Choke Module (bit 1).
Acknowledging and restarting
Acknowledge the fault immediately, since the drive has tripped and will not restart until the message is cleared. Because the repair of the interrupted sensor connection is left to the manufacturer, expect the fault to return if the connection is still open.
The same on every family
Every manual that describes F37012 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF1 (OFF2) | IMMEDIATELY | General drive fault (19) | None | SINAMICS S120, S150 List Manual · p. 3262 |
The drives this code lives on
F37012 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F37012 mean on a SINAMICS drive?
The connection to one of the heat sink temperature sensors in the HF Damping Module is interrupted. The fault value in r0949 shows whether the HF Damping Module (bit 0) or the HF Choke Module (bit 1) is affected.
How do I fix F37012?
The only remedy the manual gives is to contact the manufacturer. No user-level checks or repair steps are described for this fault.
How do I clear fault F37012?
Acknowledge it immediately on the operator panel or in the commissioning tool. It will only stay cleared once the interrupted sensor connection has been repaired.
Which module triggered F37012, the HF Damping Module or the HF Choke Module?
Read r0949 as a binary number: bit 0 set identifies the HF Damping Module, bit 1 set identifies the HF Choke Module.
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