What it means
F01911 is raised during clock cycle synchronous operation — PB stands for PROFIBUS, PN for PROFINET. In cyclic operation, the global control telegram that synchronizes the clock cycles has failed for several DP clock cycles, or it has violated the time grid specified in the parameterizing telegram over several consecutive DP clock cycles; the manual relates this to the bus cycle time, Tdp and Tpllw.
The drive does not output a message value with this fault. Depending on the drive configuration, the same condition can also be issued as an alarm (A) or with no reaction (N).
Why it appears
- In cyclic operation, the global control telegram to synchronize the clock cycles has failed for several DP clock cycles.
- The global control telegram has violated the time grid specified in the parameterizing telegram over several consecutive DP clock cycles.
What to check
- Check the physical bus configuration — cable, connector, terminating resistor, shielding, etc.
- Check whether communication was interrupted briefly or permanently.
- Check the bus and the controller for their utilization level; for example, the bus cycle time Tdp may have been set too short.
Acknowledging and restarting
Acknowledge the fault immediately; the drive only accepts a new start command once the fault has been acknowledged. The stop reaction the drive executes for this fault is shown per drive object in the message data table.
What differs between the drive families
Straight from the manuals' own fields — F01911 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: OFF1 Servo: OFF1 (OFF3) Vector: OFF1 (OFF3) Hla: OFF1 (OFF3) | IMMEDIATELY | Communication error to the higher-level control system (9) | None | SINAMICS S120, S150 List Manual · p. 2713 |
| G130, G150 | Vector: OFF1 (OFF3) Infeed: OFF1 | IMMEDIATELY | Communication error to the higher-level control system (9) | None | SINAMICS G130, G150 List Manual · p. 1490 |
The drives this code lives on
F01911 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 F01911 on a SINAMICS drive mean?
In clock cycle synchronous operation over PROFIBUS (PB) or PROFINET (PN), the global control telegram that synchronizes the clock cycles has failed for several DP clock cycles, or it has violated the time grid specified in the parameterizing telegram over several consecutive DP clock cycles.
How do I clear fault F01911?
Check the physical bus configuration (cable, connector, terminating resistor, shielding, etc.), check whether communication was briefly or permanently interrupted, and check the bus and controller for utilization level — for example whether the bus cycle time Tdp was set too short. Then acknowledge the fault immediately.
Why does F01911 keep coming back after I clear it?
The remedy names an overloaded bus or controller — for example a bus cycle time Tdp that is set too short — and communication that is briefly interrupted as causes. As long as such a condition persists, the drive raises the fault again during cyclic operation.
Does F01911 come with a fault value I can decode?
No. The manual lists no message value for this fault, so there is no bit or value decoding to evaluate.
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 F01xxx group · SINAMICS manuals · Siemens manuals