What it means
F01151 is issued by the CU when the drive object configuration contains more drive objects of one category than the maximum permissible number for that category. The message value names the affected drive object category and states how many drive objects are permitted and how many are actually present, so the excess can be seen directly.
Why it appears
- The maximum permissible number of drive objects of one drive object category has been exceeded — more drive objects of that category are configured than the CU allows.
What to check
- Read the message value in r0949 (or r2124) and decode it as ddccbbaa hex: aa gives the drive object category, bb the number limited, cc the actual number, dd has no significance.
- Switch off the unit.
- Suitably restrict the number of drive objects of the specified category by reducing the number of inserted components, so that the actual number stays within the permitted number.
- Re-commission the unit.
Reading the message value
The drive fills the three placeholders of the message value as follows:
- %1 – Drive object category: the category for which the maximum permissible number of drive objects was exceeded.
- %2 – Number permitted: the maximum permissible number for this drive object category.
- %3 – Actual number: the actual number for this drive object category.
The individual information is coded in the message value (r0949/r2124) as ddccbbaa hex:
- aa = drive object category
- bb = number limited
- cc = actual number
- dd = no significance
Parameters the manual names
- r0949 (fault value): read the coded fault value of F01151 here and decode it as ddccbbaa hex to identify the affected drive object category and the permitted and actual numbers.
- r2124 (alarm value): stores the same coded message value (ddccbbaa hex) as r0949; the manual names it alongside r0949 for this code.
Acknowledging and restarting
Acknowledge the fault immediately. Correcting the condition follows the remedy in the manual's order: switch off the unit, restrict the number of drive objects of the affected category by reducing the number of inserted components, and then re-commission the unit. Acknowledging alone does not remove the cause — the actual number of drive objects must be brought back within the permitted number.
The same on every family
Every manual that describes F01151 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1393 |
| S120, S150 | NONE | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2581 |
The drives this code lives on
F01151 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 fault F01151 mean on a SINAMICS drive?
The CU has detected that the maximum permissible number of drive objects of one category has been exceeded. The message value shows which category is affected and how many drive objects are permitted and actually present.
How do I clear F01151?
Switch the unit off, reduce the number of inserted components so that the number of drive objects of the named category is within the permitted limit, and then re-commission the unit.
How is the F01151 message value decoded?
It is coded as ddccbbaa hex in r0949/r2124: aa = drive object category, bb = number limited, cc = actual number, dd = no significance.
Is it enough to just acknowledge F01151?
No. The fault is acknowledged immediately, but the remedy requires switching the unit off, reducing the number of inserted components and re-commissioning — otherwise the excess drive objects remain in the configuration.
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 F01xxx group · SINAMICS manuals · Siemens manuals