Siemens 6SL3121-2TE15-0AA4 SINAMICS S120 Double Motor Module
The AA4 spare-part generation supplies two SINAMICS S120 motor axes in the 5 A class.
Overview
This AA4 Double Motor Module is a two-axis power stage for the modular SINAMICS S120 platform. It connects to the common DC link, uses an external air-cooling path and participates in the coordinated drive topology through DRIVE-CLiQ. Siemens now treats the exact order number as a cancelled spare part.
Specs
| Manufacturer | Siemens |
|---|---|
| Order Number | 6SL3121-2TE15-0AA4 |
| Product Family | SINAMICS S120 |
| Module Type | Double Motor Module |
| Input | 600 V DC |
| Output | 400 V, 3 AC |
| Rated Output Current | 5 A / 5 A |
| Construction | Booksize |
| Cooling | External air cooling |
| System Interface | DRIVE-CLiQ cable included |
| Safety Capability | Extended Safety Integrated functions supported |
| Lifecycle | PM410 product cancellation since 1 October 2021 |
Features
- Provides two motor power stages in one modular booksize component.
- Uses the shared DC-link and coordinated control architecture of the S120 drive line-up.
- Supports optimized pulse patterns documented for the AA4 generation.
- Integrates diagnostic and topology communication through DRIVE-CLiQ.
- Works with the cabinet external-cooling arrangement defined for the installed machine.
Applications
- Spare-part support for two coordinated low-power machine axes.
- Replacement in externally cooled S120 cabinets built around the AA4 generation.
- Maintenance of paired servo functions where one module serves both motors.
- Restoration of a verified drive project after controlled hardware exchange.
- Lifecycle inventory planning for cancelled booksize motor modules.
Lifecycle
- The official Siemens record identifies the order number as a cancelled spare part.
- Match the complete AA4 suffix instead of selecting by current class alone.
- Confirm control-unit firmware, DRIVE-CLiQ topology and safety dependencies before exchange.
- Inspect the cabinet heat path and connectors during the planned shutdown.
- Commission each motor channel independently before approving the machine for production.
FAQ
Which axes share this 5 A Double Motor Module?
Two motor channels are supplied by the same module and must both be included in the service plan.
Why should the full AA4 order number be recorded?
Adjacent generations may share current ratings but differ in lifecycle and project compatibility.
What cooling arrangement does this product expect?
It is the external-air-cooled booksize version and relies on the corresponding cabinet interface.
How does the module join the drive topology?
The included DRIVE-CLiQ connection supports coordinated control and diagnostics.
What should be checked before energizing a replacement?
Review power wiring, protective earth, both motor connections, topology and cooling.
How should the two outputs be tested?
Commission and verify the configured motor, encoder and safety behavior for each axis separately.
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