What it means
F33885 reports a DRIVE-CLiQ communication error on the cyclic data transfer between the Sensor Module of encoder 3 and the Control Unit: the two nodes no longer send and receive in synchronism. Depending on the drive configuration, the drive can also signal this condition as an alarm or without any reaction instead of as a fault.
Why it appears
- The cyclic DRIVE-CLiQ data exchange between the Sensor Module (encoder 3) involved and the Control Unit is disturbed — the nodes do not send and receive in synchronism.
- Fault cause 26 (= 1A hex): the sign-of-life bit in the receive telegram is not set and the receive telegram is too early.
- Fault cause 33 (= 21 hex): the cyclic telegram has not been received.
- Fault cause 34 (= 22 hex): timeout in the telegram receive list.
- Fault cause 64 (= 40 hex): timeout in the telegram send list.
- Fault cause 98 (= 62 hex): error at the transition to cyclic operation.
What to check
- Check the power supply voltage of the component involved.
- Carry out a POWER ON (switch-off/switch-on).
- Replace the component involved.
- For G130 and G150 the remedy additionally refers to p9915, the DRIVE-CLiQ data transfer error shutdown threshold master.
Reading the message value
- The drive enters two items into the message value: the component number (%1) and the fault cause (%2).
- The information is coded in the fault value r0949 or the alarm value r2124 as 0000yyxx hex, where yy is the component number and xx is the error cause.
- The possible values of xx are the fault causes listed above: 26 (= 1A hex), 33 (= 21 hex), 34 (= 22 hex), 64 (= 40 hex) and 98 (= 62 hex).
Parameters the manual names
- r0949 (fault value) — read the coded value 0000yyxx hex here to identify the affected component (yy) and the fault cause (xx) of F33885.
- r2124 (alarm value) — carries the same coding when the condition is signalled as an alarm.
- p9915 (DRIVE-CLiQ data transfer error shutdown threshold master) — the remedy for this fault on G130/G150 refers to this parameter.
Acknowledging and restarting
When the drive raises F33885 as a fault, it must be acknowledged immediately before the drive is restarted. The remedy includes a POWER ON (switch-off/switch-on) of the component involved, so switch off and on again as part of clearing the fault. If the condition is configured as an alarm or without any reaction, the manual specifies neither a reaction nor an acknowledgement.
What differs between the drive families
Straight from the manuals' own fields — F33885 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. 3173 |
| 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. 1844 |
The drives this code lives on
F33885 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 F33885 mean on a SINAMICS drive?
It reports a DRIVE-CLiQ cyclic data transfer error between the Sensor Module of encoder 3 and the Control Unit: the nodes no longer send and receive in synchronism. The code is described for G130, G150, S120 and S150 and can also appear as an alarm.
How do I fix fault F33885?
The remedy has three steps: check the power supply voltage of the component involved, carry out a POWER ON (switch-off/switch-on), and replace the component involved.
How can I see which component and fault cause triggered F33885?
Read the message value in r0949 (fault value) or r2124 (alarm value). It is coded 0000yyxx hex: yy is the component number and xx the fault cause, for example 64 (= 40 hex) for a timeout in the telegram send list.
Does F33885 have to be acknowledged?
As a fault it is acknowledged immediately before the drive can restart. If the drive is configured to output the condition as an alarm or without reaction, no acknowledgement is specified.
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