Industrial Servo Drive Solution – SIEMENS 6SL3120-1TE28-5AA3 | SINAMICS S120
The SIEMENS 6SL3120-1TE28-5AA3 is a booksize format Single Motor Module rated at 85A output current, designed for the SINAMICS S120 modular drive system. It delivers precise, high-dynamic torque control for demanding industrial motion applications — from CNC machine tools to robotic arms and automated production lines.
Where This Product Is Used
This module is specified by engineers across a wide range of high-performance industrial environments:
- CNC Machine Tools — Spindle and feed axis drives in machining centers, lathes, and grinding machines requiring tight speed/torque regulation.
- Industrial Robotics — Joint actuator drives in 6-axis robots and SCARA systems where dynamic response and compact form factor are critical.
- Automated Production Lines — Conveyor, press, and winding applications in automotive, packaging, and electronics manufacturing.
- Printing & Paper Machinery — Tension-controlled web drives demanding synchronous multi-axis coordination.
- Plastics & Extrusion Equipment — Extruder screw and haul-off drives requiring smooth torque at variable speeds.
- Test Benches & Dynamometers — High-accuracy torque/speed simulation rigs in R&D and QA environments.
Technical Specifications
- Part Number: 6SL3120-1TE28-5AA3
- Series: SINAMICS S120 Booksize
- Module Type: Single Motor Module
- Output Current (Continuous): 85 A
- Output Current (Peak): 170 A (3 s)
- DC Link Voltage: 600 V DC
- Switching Frequency: 4 kHz (default), up to 8 kHz
- Cooling: Forced air (internal fan)
- Form Factor: Booksize
- Communication: DRIVE-CLiQ interface
- Protection Class: IP20
- Ambient Temperature: 0 °C to +40 °C (derated to +55 °C)
- Weight: Approx. 1.4 kg
- Standards: CE, UL, cUL
Why Engineers Specify This Model
- High Dynamic Performance: Vector control with encoder feedback enables sub-millisecond torque response — essential for servo and CNC applications.
- Modular SINAMICS S120 Ecosystem: Shares a common DC bus with other S120 modules, enabling energy recovery between axes and reducing cabinet footprint.
- DRIVE-CLiQ Plug-and-Play: Automatic motor recognition and parameter upload via DRIVE-CLiQ simplifies commissioning and reduces setup time.
- Scalable Current Rating: 85A continuous output covers a broad range of servo motor frame sizes without over-specifying hardware.
- Proven Field Reliability: Widely deployed in Tier-1 automotive and aerospace facilities with documented MTBF exceeding 100,000 hours.
Complete System Bill of Materials
A typical SINAMICS S120 single-axis drive system using this module requires:
- Control Unit: SIEMENS 6SL3040-1MA01-0AA0 (CU320-2 DP) or 6SL3040-1MA00-0AA0 (CU320-2 PN)
- Line Module (Active/Smart): e.g., 6SL3130-7TE21-6AA3 (16 kW Smart Line Module)
- Single Motor Module: 6SL3120-1TE28-5AA3 (this unit)
- Servo Motor: SIEMENS 1FK7 / 1FT7 series (matched to 85A rating)
- DRIVE-CLiQ Cable: 6FX2002-1DC00 series (length per cabinet layout)
- Braking Resistor (if required): 6SE6400-4BD22-2CA0
- 24 V DC Power Supply: SITOP PSU100S or equivalent
Compliance & Industry Standards
- CE Marking — EU Low Voltage Directive 2014/35/EU & EMC Directive 2014/30/EU
- UL 508C — Power Conversion Equipment (North America)
- IEC 61800-5-1 — Adjustable Speed Electrical Power Drive Systems Safety
- IEC 61800-3 — EMC Requirements for Drive Systems
- RoHS 2 Compliant (Directive 2011/65/EU)
Quality Assurance & Sourcing
All units supplied by Konmask.com undergo a documented inspection process:
- Visual inspection for physical damage, label integrity, and seal verification
- Firmware version check against SIEMENS official release notes
- Functional power-on test where applicable
- Traceable sourcing from authorized distributors and verified industrial surplus channels
- Packaging in anti-static ESD bags with foam cushioning for safe international transit
How to Source This Part
Ready to order the SIEMENS 6SL3120-1TE28-5AA3? Here’s how to proceed:
- In Stock: Add to cart directly — ships within 1–3 business days from our warehouse.
- Bulk / Project Inquiry: Contact support@konmask.com for volume pricing and lead-time confirmation.
- Urgent Requirement: Call or WhatsApp +0086 19859288691 for same-day quotation.
- System Integration Support: Our engineers can assist with BOM verification, parameter backup, and commissioning guidance.
Application-Specific FAQ
Q: Is the 6SL3120-1TE28-5AA3 compatible with SINAMICS S120 CU320-2?
A: Yes. It connects via DRIVE-CLiQ and is fully supported by CU320-2 DP and CU320-2 PN control units running firmware V4.7 and above.
Q: Can this module drive a 1FT7 motor directly?
A: Yes, provided the motor’s rated current does not exceed 85A continuous. Use STARTER or TIA Portal to auto-configure motor data via DRIVE-CLiQ.
Q: What is the difference between 6SL3120-1TE28-5AA3 and 6SL3120-1TE28-5AB3?
A: The AA3 suffix denotes the standard booksize variant. AB3 typically indicates a chassis format or revised hardware revision — always verify the exact order number against your project BOM.
Q: Does this unit support Safe Torque Off (STO)?
A: Yes. The S120 Single Motor Module supports STO (SIL 2 / PLd) as a standard integrated safety function, configurable via TIA Portal Safety.
Q: What cooling is required?
A: The module uses an integrated forced-air fan. Ensure minimum 50 mm clearance above and below the module in the control cabinet for adequate airflow.
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