What it means
F33150 reports that the encoder functionality selected in p0404 for encoder 3 cannot be executed: when the drive initializes the encoder, it detects an encoder malfunction. Depending on how the drive is configured, the same condition can also be issued as an alarm (A) or as a message without any reaction (N).
Why it appears
- The encoder functionality selected in p0404 cannot be executed or is not operating correctly — the drive classifies the condition as an encoder malfunction.
What to check
- Check that p0404 is set correctly.
- Check the encoder type actually used (incremental or absolute) and, for SMCxx, the encoder cable.
- If further messages are present, note them — they describe the fault in more detail.
Reading the message value
- The drive stores the message value in r0949; interpret it hexadecimal.
- The value means: encoder malfunction.
- The bit assignment corresponds to that of p0404.
- Example given by the manual: bit 5 set — error on track C/D.
Parameters the manual names
- p0404 (Encoder configuration effective): holds the encoder functionality the drive is trying to execute; for this fault, verify that the parameter is set correctly for the encoder actually connected.
- r0949 (Fault value): contains the fault value of this message; read it hexadecimal and compare the set bits with the bit assignment of p0404.
Acknowledging and restarting
Acknowledgement requires pulse inhibit: the pulses must first be inhibited before the drive accepts the acknowledgement; once acknowledged, the drive can be restarted. When the condition is configured as an alarm (A) or without a reaction (N), the drive executes no reaction and no acknowledgement is required.
What differs between the drive families
Straight from the manuals' own fields — F33150 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3, STOP2) Vector: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3, STOP2) Hla: OFF1 (NONE, OFF2, OFF3, STOP2) | PULSE INHIBIT | Error in the parameterization / configuration / commissioning procedure (18) | Sensor Module Encoder 3 | SINAMICS S120, S150 List Manual · p. 3149 |
| G130, G150 | OFF1 (IASC/DCBRK, NONE, OFF2, OFF3, STOP2) | PULSE INHIBIT | Error in the parameterization / configuration / commissioning procedure (18) | Sensor Module Encoder 3 | SINAMICS G130, G150 List Manual · p. 1821 |
The drives this code lives on
F33150 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 F33150 mean on a SINAMICS drive?
It means that the encoder functionality selected in p0404 for encoder 3 cannot be executed — during initialization the drive detects an encoder malfunction. Depending on the configuration, the same condition can also appear as an alarm or without any reaction.
How do I fix fault F33150?
Check that p0404 is set correctly, check the encoder type actually used (incremental or absolute) and, for SMCxx, the encoder cable. Note any additional fault messages, since they describe the fault in more detail.
How do I read the fault value of F33150?
The fault value is stored in r0949 and must be interpreted hexadecimal. Its bit assignment corresponds to p0404 — for example, bit 5 set means an error on track C/D.
Why can't I acknowledge F33150?
Acknowledgement requires pulse inhibit: the pulses must be inhibited first before the drive accepts the acknowledgement. Once acknowledged, the drive can be restarted.
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