What it means
F40885 is raised when cyclic data transfer over DRIVE-CLiQ fails on the link from the CX32 controller extension involved to the Control Unit: the nodes no longer send and receive in synchronism. The component this message is assigned to is the DRIVE-CLiQ Hub Module (Hub). The drive coasts down and the fault has to be acknowledged before the converter will run again. The G130/G150 and S120/S150 manuals describe this code identically, down to the same coded fault causes.
Why it appears
- A DRIVE-CLiQ communications error has occurred on the link from the CX32 controller extension involved to the Control Unit.
- The nodes on that link no longer send and receive in synchronism.
What to check
- Read the coded message value in r0949 (or r2124): the pattern 0000yyxx hex identifies the component number (yy) and the fault cause (xx) behind the error.
- Check the power supply voltage of the component involved.
- Carry out a POWER ON (switch-off/switch-on).
- Replace the component involved.
Reading the message value
- The drive codes the information in the message value (r0949/r2124) as 0000yyxx hex: yy = component number, xx = error cause.
- 26 (= 1A hex): sign-of-life bit in the receive telegram not set, and the receive telegram is too early.
- 33 (= 21 hex): the cyclic telegram has not been received.
- 34 (= 22 hex): timeout in the telegram receive list.
- 64 (= 40 hex): timeout in the telegram send list.
- 98 (= 62 hex): error at the transition to cyclic operation.
Parameters the manual names
- r0949 (fault value) — read the coded message value 0000yyxx hex here: yy gives the hub component number, xx the fault cause behind F40885.
- r2124 (alarm value) — named by the manual together with r0949 as the register in which the coded message value is stored.
- p9915 (DRIVE-CLiQ data transfer error shutdown threshold master, "DQ fault master") — the remedy for this fault closes with a cross-reference to this parameter.
Acknowledging and restarting
This fault must be acknowledged immediately; the drive stays tripped until it is cleared. Work through the checks above, carry out a POWER ON (switch-off/switch-on) and, if the component involved remains faulty, replace it. The fault can then be acknowledged and the converter restarted.
The same on every family
Every manual that describes F40885 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. 1929 |
| S120, S150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS S120, S150 List Manual · p. 3286 |
The drives this code lives on
F40885 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 SINAMICS fault F40885 mean?
It is a CX32 DRIVE-CLiQ (CU) cyclic data transfer error: a DRIVE-CLiQ communications error occurred from the CX32 controller extension involved to the Control Unit, and the nodes do not send and receive in synchronism.
How do I decode the message value of F40885?
Read r0949 (or r2124): the value is coded 0000yyxx hex, where yy is the component number and xx the fault cause — for example 33 (21 hex) means the cyclic telegram was not received.
Which component is behind F40885?
The message is assigned to the DRIVE-CLiQ Hub Module (Hub) and concerns the link between the CX32 controller extension and the Control Unit.
How is F40885 cleared?
Check the power supply voltage of the component involved, carry out a POWER ON (switch-off/switch-on) and replace the component if required. Acknowledge the fault immediately, then restart the converter.
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