Siemens 6SL3020-2TE21-0AA4 Double Motor Module – SINAMICS S120 Booksize Drive System
When a motor module fails on a high-speed CNC machining center or a multi-axis coordinated production line, the entire cell stops. Unplanned downtime in automotive stamping, paper converting, or semiconductor fab environments can cost thousands of dollars per minute. The Siemens 6SL3020-2TE21-0AA4 Double Motor Module is the precision power electronics component that keeps two servo axes running in perfect synchronization — and when it needs replacing, only an exact-match, verified unit will restore full system performance.
Within the SINAMICS S120 Booksize format, the 6SL3020-2TE21-0AA4 occupies a specialized niche: it delivers 10 A continuous output current per axis in a dual-channel architecture, sharing a common DC bus with the Line Module. This design reduces cabinet footprint, simplifies wiring, and enables regenerative energy exchange between axes — making it the preferred choice for machine builders targeting IEC 61800-compliant multi-axis servo systems across Europe, Asia, and North America.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 6SL3020-2TE21-0AA4 |
| Product Family | SINAMICS S120 Booksize |
| Module Type | Double Motor Module |
| Output Current (per axis) | 10 A continuous |
| DC Bus Voltage | 600 V DC (nominal) |
| Number of Axes | 2 (dual-channel) |
| Cooling Method | Forced air (internal fan) |
| Form Factor | Booksize |
| Communication Interface | DRIVE-CLiQ |
| Weight | 5.5 kg (approx.) |
| Manufacturer | Siemens AG |
| Country of Origin | Germany / EU |
Note: Full electrical ratings should be verified against the official Siemens SINAMICS S120 hardware installation manual (6SL3097-4AA00-0BP6) before installation.
Key Features & Benefits
- Dual-axis architecture: Controls two independent servo motors from a single module, reducing component count and cabinet space by up to 40% versus two single-axis modules.
- Shared DC bus: Integrates seamlessly into the SINAMICS S120 common DC bus topology, enabling regenerative braking energy from one axis to power another — improving overall system energy efficiency.
- DRIVE-CLiQ interface: Siemens’ proprietary high-speed serial bus automatically identifies connected motors and encoders, dramatically reducing commissioning time and eliminating manual parameter entry errors.
- Booksize form factor: Slim, modular design snaps onto the standard S120 mounting rail alongside Line Modules and other Motor Modules for a clean, scalable cabinet layout.
- Integrated safety functions: Supports STO (Safe Torque Off) and SS1 (Safe Stop 1) per IEC 62061 / ISO 13849, enabling SIL 2 / PLd machine safety architectures without external safety relays.
- Wide motor compatibility: Drives 1FK7, 1FT7, 1PH8, and third-party synchronous/asynchronous servo motors when used with appropriate encoder adapters.
Industry & Equipment Applications
- CNC Machine Tools: X/Y dual-axis table drives on machining centers, grinding machines, and EDM equipment requiring tight synchronization.
- Packaging Machinery: Servo-driven film feed and cut axes on horizontal flow wrappers and vertical form-fill-seal machines.
- Printing & Converting: Register control and tension management on web-fed offset presses and slitter-rewinders.
- Automotive Assembly: Coordinated servo axes on welding positioners, transfer lines, and press-tending robots.
- Semiconductor & Electronics: High-precision gantry and pick-and-place systems in SMT and wafer-handling equipment.
- Textile & Fiber: Multi-axis winding and traversing drives on yarn spinning and winding machines.
System Integration & Compatible Parts
The 6SL3020-2TE21-0AA4 is designed to operate within a complete SINAMICS S120 Booksize drive line-up. Key compatible components include:
- Line Modules (Active/Smart/Basic): e.g., 6SL3130-series Active Line Modules for regenerative DC bus supply.
- Control Units: CU320-2 DP (PROFIBUS) or CU320-2 PN (PROFINET) for centralized multi-axis control.
- DRIVE-CLiQ Hub Modules: DMC20 / DME20 for topology extension in large multi-axis systems.
- Braking Resistors: External resistor modules (6SL3100-series) for applications with high regenerative energy.
- Servo Motors: Siemens 1FK7 / 1FT7 synchronous servo motors with DRIVE-CLiQ encoder interface.
- Encoder Systems: SMC20 / SME20 Sensor Module Cabinet for external encoder integration.
Our Quality Assurance Process
At Konmask.com, every unit of the 6SL3020-2TE21-0AA4 passes through a structured verification process before shipment:
- Visual Inspection: Housing integrity, connector condition, label authenticity, and firmware version verification.
- Functional Power-On Test: DC bus energization and DRIVE-CLiQ handshake confirmation where test bench infrastructure permits.
- Authenticity Check: Cross-reference of serial number and date code against Siemens production records.
- Packaging: Anti-static bag + foam-lined export carton with desiccant, rated for international air and sea freight.
- Documentation: Test report, product datasheet, and certificate of conformity provided on request.
How to Order
- Click “Request a Quote” or contact us directly at support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 24 business hours.
- Confirm order and receive proforma invoice; payment via T/T, PayPal, or LC accepted.
- Unit ships with full tracking; typical international delivery 5–10 business days via DHL/FedEx.
Why Choose Konmask.com?
- ✅ Specialized in industrial automation: PLC, DCS, servo drives, and HMI components from 200+ global brands.
- ✅ Verified stock & traceability: Every part is traceable to its original manufacturer batch.
- ✅ Global shipping: Export-compliant shipping to 80+ countries with full customs documentation support.
- ✅ Engineering support: Our team includes qualified automation engineers who can assist with compatibility and integration questions.
- ✅ Competitive lead times: In-stock items ship within 2 business days; sourced items within 7–15 days.
- ✅ After-sales service: 12-month warranty on verified units; DOA replacement policy.
Frequently Asked Questions
Q: Is the 6SL3020-2TE21-0AA4 a new or refurbished unit?
A: We supply both new-in-box (NIB) and professionally refurbished units. The condition is clearly stated in your quotation. All refurbished units pass our full QA process.
Q: Can this module replace a 6SL3020-2TE21-0AB4 or similar variant?
A: Variants with different suffix codes may have different current ratings or firmware versions. We strongly recommend confirming the exact part number with your Siemens project documentation or contacting our engineers before substitution.
Q: What SIMATIC/SINUMERIK controllers is this compatible with?
A: The S120 Motor Module is compatible with SINUMERIK 840D sl (via NCU) and SIMATIC S7 controllers when paired with the appropriate CU320-2 Control Unit and TM (Terminal Module) configuration.
Q: Do you provide a warranty?
A: Yes. Verified units carry a 12-month warranty from the date of shipment. Please refer to our warranty policy page for full terms.
Q: Can you source this part if it is not currently in stock?
A: Yes. We maintain relationships with authorized distributors and secondary market suppliers globally. Submit a quote request and we will confirm availability and lead time within 24 hours.
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