What it means
A07892 is raised by the drive's load monitoring when that function is configured for a pump or a fan (p2193 = 4, 5). In this configuration the monitoring checks whether the machine is running with load and reports the alarm when it detects a no-load condition. The typical situation is a pump running in the dry state — there is no medium to be pumped — or a fan with a broken belt. It is also possible that the detection torque threshold (p2191) is simply set too low, so the monitoring judges a normally loaded machine as unloaded. A07892 is an alarm to which the drive takes no automatic action, and no acknowledgement is required: the message goes away once the no-load condition has been remedied.
Why it appears
- The load monitoring is configured for a pump or a fan (p2193 = 4, 5) and has detected that the machine is operating under no-load conditions.
- A pump is running in the dry state — there is no medium to be pumped.
- A fan has a broken belt.
- It is possible that the detection torque threshold (p2191) is set too low.
What to check
- If the driven machine is a pump: check the medium being pumped and, if required, provide the medium.
- If it is a fan: check the belt and, if required, replace it.
- If necessary after these checks, increase the detection torque threshold (p2191).
Parameters the manual names
- p2193 — Load monitoring configuration: selects the monitoring mode; this alarm applies when it is set to 4 or 5 (pump or fan).
- p2191 — Load monitoring torque threshold no load: the detection torque threshold of the no-load monitoring; increase it if the medium and the belt are in order and the alarm still appears.
- p2181 — Load monitoring response: named by the manual as a parameter related to this alarm; it defines the response of the load monitoring function.
Acknowledging and restarting
No acknowledgement is required, and the drive does not need to be restarted to clear the message. Remedy the cause — provide the medium for the pump, replace the fan belt, or raise p2191 if the threshold was too low — and the alarm disappears by itself.
What differs between the drive families
Straight from the manuals' own fields — A07892 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G120 | NONE | NONE | Application/technological function faulted (17) | — | SINAMICS G120 · p. 884 |
| G120XA | NONE | NONE | — | — | SINAMICS G120XA PN converter · p. 1136 |
The drives this code lives on
A07892 is described for G120, G120XA. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A07892 mean on a SINAMICS drive?
The load monitoring, configured for a pump or a fan (p2193 = 4 or 5), has detected a no-load condition — typically a pump running dry or a fan with a broken belt. A detection torque threshold (p2191) set too low can also be the reason.
How do I fix alarm A07892?
For a pump, check the medium being pumped and provide it if required; for a fan, check the belt and replace it if required. If the machine is actually in order, increase the detection torque threshold p2191.
Does A07892 stop the drive, and must it be acknowledged?
No. The drive takes no automatic action in response to this alarm, and no acknowledgement is required — the message clears once the no-load condition has been remedied.
Why does A07892 appear although the pump is running normally?
Then the detection torque threshold p2191 is probably too low for the application, so the monitoring judges the loaded machine as unloaded — increase it if necessary.
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 A07xxx group · SINAMICS manuals · Siemens manuals