What it means
The manual titles this fault «Drive: Infeed operation missing». The signal «infeed operation» is not present although the enable signals for the drive have been present for longer than the parameterized monitoring time (p0857).
The entries for G130/G150 and for S120/S150 carry identical causes and remedies, so they are written up here once. In practical terms: the drive is enabled, but the infeed does not report «infeed operation» within the monitoring time set in p0857. The drive is switched off (OFF2) and the fault must be acknowledged before the drive will start again.
Why it appears
- The infeed is not operational.
- The binector input for the ready signal (p0864) is interconnected incorrectly or is not interconnected at all.
- The infeed is presently carrying out a line supply identification routine.
What to check
- Bring the infeed into an operational state.
- Check the interconnection of the binector input p0864, which must carry the signal «infeed operation».
- Increase the monitoring time in p0857.
- Wait until the infeed has completed its line supply identification routine.
Parameters the manual names
- p0857 (power unit monitoring time, PU t_mon): the monitoring time after which this fault trips while the «infeed operation» signal is still absent; the remedy for this code includes increasing it.
- p0864 (BI): the binector input through which the signal «infeed operation» is interconnected; an incorrect or missing interconnection here is a listed cause of F07840.
Acknowledging and restarting
Acknowledge the fault immediately once its cause has been removed, so the drive can be started again. No further acknowledgement or restart procedure is described for this code.
The same on every family
Every manual that describes F07840 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 (NONE) | IMMEDIATELY | Infeed faulted (13) | None | SINAMICS S120, S150 List Manual · p. 2869 |
| G130, G150 | OFF2 (NONE) | IMMEDIATELY | Infeed faulted (13) | None | SINAMICS G130, G150 List Manual · p. 1600 |
The drives this code lives on
F07840 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 F07840 mean on a SINAMICS?
The signal «infeed operation» is not present although the drive enable signals have been present for longer than the monitoring time set in p0857.
How do I clear F07840?
Bring the infeed into an operational state, check the p0864 binector interconnection, increase p0857 if needed and wait out any running line supply identification routine; then acknowledge the fault immediately.
Which parameters belong to F07840?
p0857, the power unit monitoring time (PU t_mon), and p0864, the binector input for the «infeed operation» signal.
Why does F07840 appear while the infeed is identifying the line supply?
A line supply identification routine is a listed cause: during it the infeed does not report operation, and the remedy is to wait until the routine has completed.
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 F07xxx group · SINAMICS manuals · Siemens manuals