What it means
F33835 reports that a DRIVE-CLiQ communication error has occurred from the Control Unit to the encoder concerned: the nodes do not send and receive in synchronism, so cyclic data transfer with Encoder 3 is disturbed. Depending on how the drive is configured, the same condition can also be issued as an alarm or as a message without any reaction.
Why it appears
- A DRIVE-CLiQ communication error between the Control Unit and the encoder concerned — the nodes do not send and receive in synchronism.
- Which of the three fault causes applied (cyclic telegram not received, timeout in the telegram receive list, timeout in the telegram send list) is coded in the message value; see the fault value decoding below.
What to check
- Read the message value in r0949 — or in r2124 if the condition was output as an alarm — and identify the component number (yy) and the fault cause (xx) from the 0000yyxx hex coding.
- Carry out a POWER ON.
- If the fault occurs again, replace the component involved. For G130 and G150 the manual additionally cross-references p9916 when describing this fault.
Reading the message value
- The drive codes the information in the message value (r0949/r2124) as 0000yyxx hex, where yy = component number and xx = error cause.
- xx = 33 (= 21 hex): the cyclic telegram has not been received.
- xx = 34 (= 22 hex): timeout in the telegram receive list.
- xx = 64 (= 40 hex): timeout in the telegram send list.
Parameters the manual names
- r0949 — fault value: this is where the drive stores the coded message value (component number and fault cause) for F33835.
- r2124 — alarm value: holds the same coded information when the condition is output as an alarm.
- p9916 — DRIVE-CLiQ data transfer error shutdown threshold slave: the G130/G150 manual names this parameter in the cross-reference for this fault.
Acknowledging and restarting
Acknowledge the fault immediately; only after the fault has been remedied and acknowledged can the drive be restarted. The remedy itself consists of a POWER ON and, if the fault occurs again, replacing the component involved. Where the drive outputs the condition as an alarm or as a message without reaction, the manual specifies no acknowledgement for those variants.
What differs between the drive families
Straight from the manuals' own fields — F33835 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Vector: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Hla: OFF1 (NONE, OFF2, OFF3) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Sensor Module Encoder 3 | SINAMICS S120, S150 List Manual · p. 3169 |
| G130, G150 | OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Sensor Module Encoder 3 | SINAMICS G130, G150 List Manual · p. 1840 |
The drives this code lives on
F33835 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 F33835 mean on a SINAMICS drive?
It reports a DRIVE-CLiQ cyclic data transfer error from the Control Unit to the encoder concerned: the nodes do not send and receive in synchronism.
How do I clear fault F33835?
Carry out a POWER ON. If the fault occurs again, the manual says to replace the component involved.
What does fault cause 33 (21 hex) in the F33835 message value mean?
That the cyclic telegram has not been received. The other causes are 34 (22 hex), a timeout in the telegram receive list, and 64 (40 hex), a timeout in the telegram send list.
Where can I read which component triggered F33835?
In the message value r0949, or r2124 if the condition came as an alarm: it is coded 0000yyxx hex, where yy is the component number and xx the error cause.
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 F33xxx group · SINAMICS manuals · Siemens manuals