What it means
F31896 tells you that the properties of the DRIVE-CLiQ component used as the Sensor Module for encoder 1 have changed in an incompatible fashion with respect to the properties the drive recorded when it booted. The component concerned is the one whose number the drive places in the fault value. As one example, the manual names the replacement of a DRIVE-CLiQ cable or of a DRIVE-CLiQ component. Depending on how the drive is configured, the same condition can also be signaled as an alarm or with no reaction.
Why it appears
- The properties of the DRIVE-CLiQ component (Sensor Module for encoder 1) named by the fault value have changed in an incompatible fashion compared with the properties at boot.
- The manual gives as one example that a DRIVE-CLiQ cable or a DRIVE-CLiQ component has been replaced.
What to check
- Carry out a POWER ON.
- If a DRIVE-CLiQ component was replaced, use the same component type and, if possible, the same firmware version.
- If a DRIVE-CLiQ cable was replaced, use only a cable whose length is the same as, or as close as possible to, the original cable length — and ensure compliance with the maximum cable length.
Reading the message value
- The message value carries the component number of the affected DRIVE-CLiQ component (placeholder %1).
- Fault value (r0949, interpret decimal): component number.
Parameters the manual names
- r0949 — fault value: read it as a decimal number to obtain the component number of the encoder 1 DRIVE-CLiQ component whose properties no longer match the boot properties.
Acknowledging and restarting
Acknowledge the fault immediately. The remedy for this code is a POWER ON; if a component or cable was replaced, fit the replacement as described under checks before restarting.
What differs between the drive families
Straight from the manuals' own fields — F31896 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: NONE (OFF1, OFF2) Servo: OFF2 (ENCODER, IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Vector: OFF2 (ENCODER, IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Hla: OFF2 (ENCODER, NONE, OFF1, OFF3, STOP2) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Sensor Module Encoder 1 | SINAMICS S120, S150 List Manual · p. 3074 |
| G130, G150 | Vector: OFF2 (ENCODER, IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Infeed: NONE (OFF1, OFF2) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Sensor Module Encoder 1 | SINAMICS G130, G150 List Manual · p. 1757 |
The drives this code lives on
F31896 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 F31896 on my SINAMICS mean?
The properties of the DRIVE-CLiQ component working as the Sensor Module for encoder 1 no longer match the properties recorded at boot. Typically a DRIVE-CLiQ cable or a DRIVE-CLiQ component has been replaced.
How do I clear F31896?
Acknowledge the fault immediately and carry out a POWER ON. When a component is replaced, use the same component type and if possible the same firmware version; for a replaced cable, keep the length the same or as close as possible and respect the maximum cable length.
Where can I see which component triggered F31896?
The drive stores the component number in r0949; interpret the value as a decimal number.
Can F31896 also appear as an alarm?
Yes — depending on the drive's configuration, the same condition can also be signaled as an alarm or with no reaction.
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 F31xxx group · SINAMICS manuals · Siemens manuals