What it means
F07896 carries the manual title “Drive: Load monitoring pump leakage”. The drive raises it when the load monitoring is configured for a pump (p2193 = 4) and the monitoring function detects a leak in the pump circuit: with a leak, the pump requires a torque that is lower than in normal operation to pump the reduced quantity. The code belongs to the drive's load-monitoring messages alongside F07895 (pump/fan no load condition) and F07894 (pump/fan blocked), which are described on their own pages.
Why it appears
- The load monitoring is configured for a pump (p2193 = 4).
- The monitoring function detects a leak in the pump circuit — in this case the pump requires a torque that is lower than in normal operation to pump the reduced quantity.
What to check
- Remove the leak in the pump circuit.
- For a nuisance trip, reduce the torque thresholds of the leakage characteristic (p2186, p2188, p2190).
Parameters the manual names
- p2193 (Load monitoring configuration): sets the operating mode of the load monitoring; the pump-leakage monitoring behind F07896 only runs when p2193 = 4.
- p2186 (Load monitoring torque threshold 1 lower): lower torque threshold 1 of the leakage characteristic — one of the thresholds to reduce for a nuisance trip.
- p2188 (Load monitoring torque threshold 2 lower): lower torque threshold 2 of the leakage characteristic, likewise reduced for nuisance trips.
- p2190 (Load monitoring torque threshold 3 lower): lower torque threshold 3 of the leakage characteristic, likewise reduced for nuisance trips.
Acknowledging and restarting
Depending on the configuration, the drive responds to this fault with a controlled ramp-down (OFF1) or lets the motor coast to a standstill (OFF2). The fault is acknowledged immediately (IMMEDIATELY): once the leak has been removed — or, for a nuisance trip, the thresholds of the leakage characteristic have been reduced — acknowledge the fault and switch the drive on again.
What differs between the drive families
Straight from the manuals' own fields — F07896 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G120XA | OFF1 (NONE, OFF2, OFF3) OFF2 (NONE, OFF1, OFF3, STOP2) | IMMEDIATELY IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1137 |
| G120 | OFF1 (NONE, OFF2, OFF3) | IMMEDIATELY | Application/technological function faulted (17) | — | SINAMICS G120 · p. 885 |
The drives this code lives on
F07896 is described for G120, G120XA. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F07896 mean on a SINAMICS G120 or G120XA?
The load monitoring is configured for a pump (p2193 = 4) and has detected a leak in the pump circuit: the pump needs a torque lower than in normal operation to pump the reduced quantity.
How do I clear and reset F07896?
Remove the leak in the pump circuit, then acknowledge the fault immediately and switch the drive on again. If the drive trips without a real leak, reduce the torque thresholds of the leakage characteristic (p2186, p2188, p2190).
Which parameter activates the pump leakage monitoring for F07896?
p2193 (Load monitoring configuration). The pump-leakage monitoring only runs when p2193 = 4.
Why does F07896 keep coming back although the pump circuit is tight?
In that case it is a nuisance trip. The manual's remedy is to reduce the torque thresholds of the leakage characteristic in p2186, p2188 and p2190.
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