Siemens 6SL3121-1TE32-0AA4 SINAMICS S120 Single Motor Module
The AA4 generation provides a large external-cooling power stage for one SINAMICS S120 axis.
Technical Summary
This AA4 Single Motor Module is a high-power spare-part generation for the modular S120 drive system. It supplies one motor from the common DC link, uses external air cooling and participates in control and diagnostic communication over DRIVE-CLiQ. The AA4 suffix is also the documented successor generation for the related AA3 order number.
Specifications
| Manufacturer | Siemens |
|---|---|
| Order Number | 6SL3121-1TE32-0AA4 |
| DC-Link Voltage | 510 to 720 V DC |
| Rated Output Current | 200 A |
| Output at 8 kHz | 140 A |
| Rated Pulse Frequency | 4 kHz |
| Dimensions | 300 x 629 x 226 mm |
| Cooling | External air cooling |
| Degree of Protection | IP20 / UL open type |
| System Interface | DRIVE-CLiQ cable included |
| Product Lifecycle | Product cancellation |
Features
- Provides a high-power single-axis stage within the common S120 DC-link system.
- Uses a large booksize construction with an integrated external cooling route.
- Supports optimized pulse patterns for the documented AA4 generation.
- Exchanges control and diagnostic information over DRIVE-CLiQ.
- Participates in extended Safety Integrated functions defined by the system project.
Compatibility
- Confirm the complete AA4 order number when replacing AA3 or servicing an AA4 installation.
- Check cabinet dimensions, cutout, fan path and service clearance.
- Verify DC-link busbar capacity and the associated line-module design.
- Match motor connection hardware, cable size, shielding and protective earth.
- Review control-unit firmware and safety-project release before commissioning.
Replacement
- Siemens identifies AA4 as a cancelled spare-part generation.
- AA4 is the official successor for 6SL3121-1TE32-0AA3, but project compatibility still requires engineering review.
- Prepare safe handling and lifting for the large module format.
- Restore the validated motor, encoder, topology and safety data.
- Complete current, cooling, diagnostic and safety tests under the approved start-up procedure.
FAQ
What is the relationship between AA3 and AA4?
Siemens identifies AA4 as the successor to the related AA3 order number, subject to complete system verification.
Why must the cabinet interface be checked?
The module depends on a large external-cooling opening, fan path and appropriate service clearance.
Which power-system components require review?
Confirm the common DC link, busbars and associated line-module design for the installed drive line-up.
Can the successor link replace a compatibility study?
No. Firmware, connections, safety functions and project data still need validation.
What should be restored from the project archive?
Restore motor and encoder data, DRIVE-CLiQ topology, control parameters and safety settings.
Which commissioning observations are important?
Monitor drive diagnostics, output behavior, cooling airflow and every required safety response.
Recommended Models
| PTB 500-033390 | 1769-PA2 1769-ECR | PD440 VI-13800 |
| MBUS01P.431 | 1C31113G06 | 400UNI 820BA229 |
| NJ5-18GM-N 106450 | EXD5314CE | 440E-L13137 |
| XYTRONIX X-15s | 1602G1D-2USB-OS | DX571 1TNE968902R2302 |
| CX-100-XP | HS2LCD | 41B5215X122 |
| EPSG202 | T0-3-8007/E | 05400-7004-0004 |
| MTN649204 REG-K | SF20-B54 NTC20k | HRC5LT20 |
| TD3RCBO | 102044-00-48-15-02 | ABB 1.1400.0.10 1SKD 340000 R1400 |
| PX2810403-78-C R1N53 0R1N53 | VR-16 | DMC60-150 |
| Brady 76627 | ABB M2300 | ABB DC551-CS31 1SAP220500R0001 TU551-CS31 B0 |
