What it means
A01508 is the alarm "BICO: Interconnections to inactive objects exceeded". The drive raises it when the maximum number of BICO interconnections (signal sinks) is exceeded while a drive object is being deactivated. When a drive object is deactivated, the drive lists all of its BICO interconnections (signal sinks) in two parameters: r9498[0...29] holds the BI/CI parameters involved, and r9499[0...29] holds the associated BO/CO parameters. The alarm stays present as long as an interconnection is still entered in the last list positions r9498[29] and r9499[29].
Why it appears
- The maximum number of BICO interconnections (signal sinks) was exceeded when deactivating a drive object.
What to check
- Read r9498[29] and r9499[29]. The alarm is withdrawn automatically as soon as no BICO interconnection (value = 0) is entered in these two parameters; the manual states that no remedial action is necessary.
- Before the drive object is re-activated, check all BICO interconnections and re-establish them if required.
Acknowledging and restarting
No acknowledgment is required. The drive withdraws the alarm by itself as soon as no BICO interconnection is entered in r9498[29] and r9499[29] (value = 0). For the restart the manuals add: When re-activating the drive object, all BICO interconnections should be checked and if required, re-established.
The same on every family
Every manual that describes A01508 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) | None | SINAMICS S120, S150 List Manual · p. 2615 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1424 |
The drives this code lives on
A01508 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 A01508 mean on a SINAMICS drive?
That the maximum number of BICO interconnections (signal sinks) was exceeded when a drive object was deactivated. The affected interconnections are listed in r9498[0...29] and r9499[0...29].
How do I clear alarm A01508?
You do not have to clear it: the alarm is withdrawn automatically as soon as no BICO interconnection (value = 0) is entered in r9498[29] and r9499[29]. No acknowledgment is needed.
What are r9498 and r9499 used for in A01508?
When a drive object is deactivated, the drive enters its BICO interconnections (signal sinks) there: r9498[0...29] lists the BI/CI parameters involved and r9499[0...29] the associated BO/CO parameters.
Which SINAMICS drives can issue A01508?
The alarm is described for SINAMICS G130, G150, S120 and S150, and the manuals describe it in the same way for all of these families.
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 A01xxx group · SINAMICS manuals · Siemens manuals