What it means
F33812 reports that the Sensor Module on Encoder 3 has asked for something the drive cannot deliver: a cycle requested from the Control Unit, or an RX/TX timing, that is not supported. Which of the two applies is recorded in the fault value (see below). Depending on how the drive is configured, the same condition can also be issued as an alarm or without any reaction.
Why it appears
- A cycle requested from the Control Unit, or the RX/TX timing requested for Encoder 3, is not supported by the drive. The exact variant is given by the fault value in r0949.
What to check
- Carry out a POWER ON (switch-off/switch-on) for all components.
Reading the message value
The drive writes the fault value into r0949; interpret it as a decimal number:
- 0: Application cycle is not supported.
- 1: DRIVE-CLiQ cycle is not supported.
- 2: Distance between RX and TX instants in time too low.
- 3: TX instant in time too early.
Parameters the manual names
- r0949 — fault value: read it here as a decimal number to identify which of the four unsupported cycle or RX/TX timing conditions the drive detected for Encoder 3.
Acknowledging and restarting
The fault is acknowledged immediately; before restart, carry out a POWER ON (switch-off/switch-on) for all components. Where the condition is issued as an alarm or without a reaction, the manual specifies neither a reaction nor an acknowledgment.
The same on every family
Every manual that describes F33812 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | Sensor Module Encoder 3 | SINAMICS S120, S150 List Manual · p. 3167 |
| G130, G150 | OFF2 | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | Sensor Module Encoder 3 | SINAMICS G130, G150 List Manual · p. 1839 |
The drives this code lives on
F33812 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 F33812 on SINAMICS mean?
Encoder 3 has requested a cycle from the Control Unit, or an RX-/TX timing, that the drive does not support; the fault value in r0949 says which of the four variants applies.
How do I clear fault F33812?
Acknowledge it immediately and carry out a POWER ON (switch-off/switch-on) for all components.
What is the fault value of F33812?
Read r0949 as a decimal number: 0 = application cycle not supported, 1 = DRIVE-CLiQ cycle not supported, 2 = distance between RX and TX instants in time too low, 3 = TX instant in time too early.
Can F33812 also appear as an alarm?
Yes — depending on the drive's configuration, the same condition can also be issued as an alarm or without any 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 F33xxx group · SINAMICS manuals · Siemens manuals