What it means
F33151 tells you that the speed of encoder 3 was too high at the moment the Sensor Module carried out its AB initialization. Both manuals that describe the code, for the S120/S150 and for the G130/G150, state the same single cause, so the condition is identical on these families. Depending on how the drive is configured, the same condition can also be signalled only as an alarm or without any reaction.
Why it appears
- The encoder speed is too high while the Sensor Module is being initialized (Sensor Module Encoder 3).
What to check
- Reduce the speed of the encoder accordingly during initialization of the Sensor Module.
- If the speed cannot be reduced, deactivate the monitoring with p0437.29 (Sensor Module configuration extended, p0437).
Parameters the manual names
- p0437 (Sensor Module configuration extended): set the switch p0437.29 in this parameter to deactivate the encoder-speed monitoring during initialization when the higher speed is unavoidable.
Acknowledging and restarting
The drive stops with OFF1 when this fault triggers. To clear it, remove the enable so that pulse inhibit is present, then acknowledge the fault on the operator panel or in the commissioning tool and restart the drive. Where the drive is configured to raise this condition only as an alarm or with no reaction, there is no fault to acknowledge.
What differs between the drive families
Straight from the manuals' own fields — F33151 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. 1822 |
The drives this code lives on
F33151 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 F33151 mean in SINAMICS?
It means the speed of encoder 3 was too high while the Sensor Module was being initialized (AB initialization). The drive stops with OFF1 until the fault is cleared.
How do I fix F33151?
Reduce the speed of the encoder during the initialization of the Sensor Module. If that is not possible, deactivate the monitoring via p0437.29 and then acknowledge the fault.
Which parameter switches off the monitoring for F33151?
p0437 (Sensor Module configuration extended) contains the switch p0437.29 that deactivates this monitoring. Use it only if the higher speed during initialization cannot be avoided.
Does F33151 always stop the drive?
No. Depending on the drive's configuration, the same condition can also be signalled only as an alarm or without any reaction, in which case there is no fault to acknowledge.
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