What it means
A08531 CBE20 POWER ON required means that at least one parameter of the CBE20 (Communication Board Ethernet 20) — for example a parameter associated with SINAMICS Link — was changed as the result of a project download. The changed values are not yet effective: the drive requires a POWER ON to activate them. Depending on how the drive is configured, the same condition can also be issued as a fault rather than as an alarm.
Why it appears
- At least one parameter of the CBE20 — for example a parameter associated with SINAMICS Link — was changed as a result of a project download.
- A POWER ON is required before the changed values take effect.
What to check
- Back up the parameters so the values changed by the project download are saved.
- Carry out a POWER ON (switch-off/switch-on) so that the changed CBE20 values are activated.
Parameters the manual names
- p8811 — SINAMICS Link project selection: one of the CBE20 parameters a project download can change; its new value only becomes effective after the POWER ON.
- p8812 — SINAMICS Link clock cycle settings: also a SINAMICS Link parameter of the CBE20 covered by this message.
- p8835 — CBE20 firmware selection: the board's firmware parameter, listed in the manual's note for this message.
- p8836 — SINAMICS Link node address: the node address parameter, likewise listed for this message.
Acknowledging and restarting
As an alarm, the message needs no acknowledgement — the condition is resolved by backing up the parameters and carrying out the POWER ON (switch-off/switch-on). If the drive's configuration issues the same condition as a fault, it must be acknowledged immediately; the drive objects then take no automatic response — the drive does not execute OFF1, OFF2 or OFF3.
The same on every family
Every manual that describes A08531 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2921 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1636 |
The drives this code lives on
A08531 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 A08531 CBE20 POWER ON required mean?
At least one parameter of the CBE20 (Communication Board Ethernet 20), for example a parameter associated with SINAMICS Link, was changed by a project download, and a POWER ON is required to activate the new values.
How do I clear A08531?
Back up the parameters and then carry out a POWER ON (switch-off/switch-on). The alarm itself needs no separate acknowledgement; the switch-off/switch-on is what activates the changed values.
Can A08531 also appear as a fault?
Yes — depending on the drive's configuration, the same condition can also be issued as a fault. It must then be acknowledged immediately, while the drive objects take no automatic reaction (no OFF1, OFF2 or OFF3).
Which parameters belong to A08531?
The manual's note for this message names p8811 (SINAMICS Link project selection), p8812 (SINAMICS Link clock cycle settings), p8835 (CBE20 firmware selection) and p8836 (SINAMICS Link node address) as the CBE20 parameters concerned.
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 A08xxx group · SINAMICS manuals · Siemens manuals