Siemens · Drives
6SL3120-1TE21-8AA3 — Siemens SINAMICS S120 single motor module: fault codes, repair & supply
The 6SL3120-1TE21-8AA3 is a SINAMICS S120 booksize single motor module that drives one axis over DRIVE-CLiQ. Star Automations sources and supplies the 6SL3120-1TE21-8AA3 and repairs failed units at component level, so you can choose between a replacement and getting your existing unit restored. This is a current OEM line. Availability and price are confirmed per enquiry. Most quotes come back the same day — send the part number or the fault code on WhatsApp.
Common SINAMICS S120 motor module fault codes and what we usually find
Fault code wording can differ by firmware and manual revision — always confirm against the manual for your exact unit. The causes below are typical findings, not a diagnosis of your specific unit.
| Code | Meaning | Typical cause |
|---|---|---|
| F30001 | Overcurrent | Failed power stage, motor cable short, parameter mismatch |
| F30002 | DC link overvoltage | Regeneration issue, supply fault, aged capacitors |
| F30003 | DC link undervoltage | Line module or DC link supply problem |
| F30004 | Heatsink overtemperature | Blocked airflow or failed fan |
| F30015 | Motor cable phase failure | Open motor phase or loose terminal |
| F30021 | Ground fault | Motor or cable insulation breakdown |
When a 6SL3120-1TE21-8AA3 needs attention
- Axis will not enable or trips on first move
- Fault F30001 with a good motor and cable
- DC link voltage unstable
- Overheating alarms
- No DRIVE-CLiQ link or module not recognised
Replace or repair your 6SL3120-1TE21-8AA3
Source a replacement
Send the part number. We check sourcing from global surplus and the OEM channel and reply the same day with availability, condition and price. Advance or verified escrow applies.
Repair your existing unit
If sourcing takes longer or you want to keep your configuration, we repair at component level — power stage, gate-drive, control and supply sections — and test before dispatch.
What people look up for the 6SL3120-1TE21-8AA3
- S120 motor module F30001
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6SL3120-1TE21-8AA3 — common questions
Can you supply the 6SL3120-1TE21-8AA3 in India?
Can a faulty 6SL3120-1TE21-8AA3 be repaired instead of replaced?
My 6SL3120-1TE21-8AA3 shows F30001 (overcurrent). What should I do?
Is the exact part number important?
Need the 6SL3120-1TE21-8AA3 now?
Send the part number or fault code — we reply the same day. Serving Chennai, Puducherry, Bengaluru, Hyderabad, Delhi and pan-India.