What it means
F34896 is raised by the Control Unit when the properties of a Voltage Sensing Module (VSM) connected over DRIVE-CLiQ have changed in an incompatible fashion compared with the properties recorded when the drive booted. The component concerned is identified by the fault value. The manuals describe this fault for the S120, S150, G130 and G150 in the same words, so the meaning and the fix are the same on every family.
Why it appears
- The properties of the Voltage Sensing Module (VSM) named in the fault value no longer match the properties the drive stored when it booted.
- As one possible cause, the manual names the replacement of a DRIVE-CLiQ cable or of the DRIVE-CLiQ component itself.
What to check
- Carry out a POWER ON so that the drive boots again and re-reads the component's properties.
- If a component has been replaced, make sure the replacement is the same component type and, if possible, the same firmware version.
- If a cable has been replaced, use a cable whose length is the same as, or as close as possible to, the original cable's length — and keep within the maximum cable length.
Reading the message value
- The drive writes the number of the affected DRIVE-CLiQ component into the message value (placeholder %1, given as "Component number").
- Read the fault value in r0949 and interpret it as a decimal number: the value is the component number of the VSM whose properties have changed.
Parameters the manual names
- r0949 — read the fault value here, interpreted as decimal, to obtain the component number of the VSM whose properties are inconsistent with the boot data.
Acknowledging and restarting
The remedy the manuals give is a POWER ON: switch the drive's power supply off and back on so that it boots and re-reads the component properties. The fault switches the affected drive off, so once the POWER ON has been carried out, acknowledge the fault and restart. To keep the fault from returning, replace components only with the same type and, if possible, the same firmware version, and use replacement DRIVE-CLiQ cables of the original length.
What differs between the drive families
Straight from the manuals' own fields — F34896 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: OFF2 (NONE, OFF1) Servo: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Vector: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Hla: OFF2 (NONE, OFF1, OFF3, STOP2) | — | Internal (DRIVE-CLiQ) communication error (12) | Voltage Sensing Module (VSM) | SINAMICS S120, S150 List Manual · p. 3193 |
| G130, G150 | Vector: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2) Infeed: OFF2 (NONE, OFF1) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Voltage Sensing Module (VSM) | SINAMICS G130, G150 List Manual · p. 1863 |
The drives this code lives on
F34896 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 F34896 mean?
It reports that a Voltage Sensing Module (VSM) on DRIVE-CLiQ has properties that no longer match those the drive stored at boot. The component concerned is named by the fault value.
How do I clear fault F34896?
Carry out a POWER ON and then acknowledge the fault. If hardware was swapped, use the same component type with, if possible, the same firmware version, and a cable of the same length as the original.
Why does F34896 appear after I replaced a DRIVE-CLiQ cable or component?
A replacement whose properties differ from the original changes the component properties the drive compares against its boot data. That is why the manuals call for the same component type and firmware version and a cable of the same length.
How can I tell which VSM triggered F34896?
Read r0949 and interpret the value as a decimal number; it is the component number of the affected DRIVE-CLiQ component.
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 F34xxx group · SINAMICS manuals · Siemens manuals