Siemens alarm F31885: Encoder/DRIVE-CLiQ: cyclic data transfer error
SINAMICS S120 DRIVE-CLiQ communication fault · SINAMICS S120
What it means
DRIVE-CLiQ cyclic communication error between control unit and involved encoder/component - telegrams corrupted or lost.
Likely causes
- DRIVE-CLiQ cable damaged (bend radius, chafing, rodent damage)
- loose/oxidized RJ45-M12 DRIVE-CLiQ connector
- 24 V feed to component missing/unstable
- failing transceiver in hub module (DME) or component
Triage note: Mapped on 840D sl screens into 23xxxx range (230000 power unit, 231000+ encoders, 236000 hub modules) with original SINAMICS number retained in alarm text/value.
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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6SL3066-0BA00-… (preassembled DRIVE-CLiQ cable)
DRIVE-CLiQ cable · Primary suspect
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6SL3056-0… (hub/DME) or affected component
hub module / component port · Common cause
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24 V PSU per cabinet
electronics power supply · Check if others ruled out
Need the part urgently?
Send us alarm F31885 with your machine details — typical RFQ turnaround is 24–48h.