What it means
A07823 signals that the freely parameterizable I2t monitoring has exceeded the alarm threshold set in p3243. While the value is exceeded, status bit r2199.13 = 1. The alarm and this status bit reset themselves as soon as the I2t integrator value (r3244) falls below half of the value set in p3243.
Why it appears
- The alarm threshold (p3243) of the freely parameterizable I2t monitoring has been exceeded.
What to check
- Check the value the monitoring receives: the signal source configured in p3240 feeds the I2t monitoring its input value.
- If required, reduce the load.
- Check the parameterization of the monitoring: the permissible I2t continuous value (p3241), the I2t maximum duration (p3242) and the alarm threshold (p3243).
Parameters the manual names
- p3240 (CI: I2t input value signal source) — the source of the value the I2t monitoring evaluates; check it first, because the alarm reacts to the value received here.
- p3241 (Permissible I2t continuous value) — part of the monitoring parameterization to verify when the alarm appears.
- p3242 (I2t maximum duration) — part of the monitoring parameterization to verify when the alarm appears.
- p3243 (I2t alarm threshold) — the threshold whose exceedance raises this alarm; it also defines the reset point, since the alarm clears below half of this value.
- r3244 (CO: Actual I2t integrator value) — shows the current I2t integrator value, so you can follow when it drops below half of p3243 and the alarm resets.
Acknowledging and restarting
No acknowledgement is required for this alarm, and the drive does not trip on it. The alarm and status bit r2199.13 are reset automatically once the I2t integrator value (r3244) falls below half of the value set in p3243; r3244 can be monitored to see when this happens.
The same on every family
Every manual that describes A07823 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Application/technological function faulted (17) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2868 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1599 |
The drives this code lives on
A07823 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 alarm A07823 mean?
The freely parameterizable I2t monitoring has exceeded its alarm threshold set in p3243. While the value is exceeded, status bit r2199.13 = 1.
How do I clear A07823?
No acknowledgement is needed. The alarm resets itself, together with status bit r2199.13, as soon as the I2t integrator value r3244 falls below half of the value set in p3243.
Why does A07823 keep coming back?
The alarm reappears whenever the I2t integrator climbs past p3243 again. Check the input value signal source p3240 and the parameterization in p3241, p3242 and p3243, and reduce the load if required.
Which parameters belong to A07823?
p3240 (input value signal source), p3241 (permissible I2t continuous value), p3242 (I2t maximum duration), p3243 (alarm threshold) and r3244 (actual I2t integrator value).
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