What it means
F40845 means that a cyclic DRIVE-CLiQ data transfer error has occurred on the CX32: a DRIVE-CLiQ communications error between the Control Unit and the controller extension involved, i.e. the DRIVE-CLiQ Hub Module (Hub). The fault cause reported here is 11, a synchronization error during alternating cyclic data transfer. The drive coasts down and the fault must be acknowledged before the drive will restart. The manuals for G130/G150 and for S120/S150 describe this fault with the same cause and remedy; only the G130/G150 description adds a cross-reference to p9916.
Why it appears
- A DRIVE-CLiQ communications error has occurred from the Control Unit to the CX32 controller extension involved.
- Fault cause 11:
Synchronization error during alternating cyclic data transfer
.
What to check
- Carry out a POWER ON (switch-off/switch-on).
- In the G130/G150 description, the remedy additionally refers to p9916 (DRIVE-CLiQ data transfer error shutdown threshold slave) in connection with this fault.
Reading the message value
- Placeholder %1 carries the component number, placeholder %2 the fault cause.
- The manual decodes the message value (r0949/r2124) as 0000yyxx hex, where yy = component number and xx = error cause.
Parameters the manual names
- r0949 — fault value: read the coded message value here to see which component (yy) reported which fault cause (xx).
- r2124 — alarm value: named by the manual alongside r0949 as the register holding the coded message value.
- p9916 — DRIVE-CLiQ data transfer error shutdown threshold slave: the G130/G150 remedy points to this parameter for this fault.
Acknowledging and restarting
Acknowledge the fault immediately. The remedy the manual gives is a POWER ON: switch the drive off and then on again.
The same on every family
Every manual that describes F40845 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS G130, G150 List Manual · p. 1927 |
| S120, S150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS S120, S150 List Manual · p. 3284 |
The drives this code lives on
F40845 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 F40845 mean on a SINAMICS drive?
It is a cyclic DRIVE-CLiQ data transfer error on the CX32 controller extension (DRIVE-CLiQ Hub Module): the Control Unit and the controller extension involved had a synchronization error during alternating cyclic data transfer (fault cause 11).
How do I clear fault F40845?
Acknowledge the fault immediately and carry out a POWER ON, i.e. switch the drive off and then on again.
How is the F40845 message value decoded?
It contains the component number and the fault cause; in r0949/r2124 it is coded as 0000yyxx hex, where yy is the component number and xx is the error cause.
Which hardware is behind F40845?
The DRIVE-CLiQ Hub Module (Hub), the CX32 controller extension to which the Control Unit cyclically exchanges DRIVE-CLiQ data.
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 F40xxx group · SINAMICS manuals · Siemens manuals