SIEMENS 6SL3352-3AG35-8AA0 Multi-Axis Drive Control Unit – SINAMICS S120 CU320-2 DP Series
When a control unit fails on a high-speed production line, the consequences are immediate and severe: axes lose synchronization, safety interlocks trip, and the entire drive train comes to a halt. Unplanned downtime in automotive stamping, paper mills, or textile winding operations can cost thousands of dollars per minute. The SIEMENS 6SL3352-3AG35-8AA0 is the intelligence at the heart of your SINAMICS S120 drive system — without it, coordinated multi-axis motion simply does not exist.
The 6SL3352-3AG35-8AA0 is the CU320-2 DP variant within the SINAMICS S120 Control Unit family, distinguished by its PROFIBUS DP communication interface and its ability to manage up to 6 servo axes or vector drives simultaneously from a single compact module. Globally, the SINAMICS S120 platform is deployed across hundreds of thousands of machines in over 100 countries, making this control unit one of the most widely specified drive controllers in industrial automation today.
Technical Specifications
- Manufacturer: Siemens AG
- Part Number / SKU: 6SL3352-3AG35-8AA0
- Series: SINAMICS S120
- Module Type: Control Unit CU320-2 DP
- Communication Interface: PROFIBUS DP (up to 12 Mbit/s)
- Drive Object Support: Up to 6 drive objects (servo / vector)
- Onboard I/O: Digital inputs/outputs, analog inputs
- Memory Card Slot: CompactFlash (CF) card for firmware & parameter backup
- Power Supply: Via DRIVE-CLiQ and 24 V DC backplane
- Mounting: Booksize format, DIN rail / panel mount
- Weight: Approx. 600 g
- Compliance: CE, UL, cUL, RoHS
- Operating Temperature: 0 °C to +55 °C
- Protection Class: IP20
Key Features & Benefits
- Centralized Multi-Axis Control: Coordinates up to 6 axes from one CU, reducing cabinet footprint and wiring complexity.
- PROFIBUS DP Integration: Seamless connection to SIMATIC S7 PLCs and third-party PROFIBUS masters for real-time process data exchange.
- DRIVE-CLiQ Topology: Automatic component recognition and parameterization via Siemens DRIVE-CLiQ bus — eliminates manual encoder configuration errors.
- Safety Integrated (SIL2/PLe): Supports Safe Torque Off (STO) and extended safety functions without external safety relays.
- Flexible Firmware via CF Card: Firmware updates and complete parameter sets stored on CompactFlash — critical for fast spare-part replacement.
- Startdrive / STARTER Compatible: Full commissioning and diagnostics via Siemens TIA Portal Startdrive or legacy STARTER software.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, transfer presses, and paint shop conveyor systems requiring tight multi-axis synchronization.
- Packaging Machinery: High-speed form-fill-seal machines, cartoners, and palletizers where coordinated servo motion is critical.
- Printing & Converting: Web tension control in offset printing presses and film slitting lines.
- Textile & Fiber: Winding, twisting, and draw-texturing machines with electronic line shaft requirements.
- Material Handling: Automated storage and retrieval systems (AS/RS), gantry cranes, and AGV drive systems.
- Paper & Pulp: Section drives on paper machines requiring precise speed ratio control.
- Machine Tools: CNC machining centers and grinding machines using SINAMICS S120 as the drive backbone.
System Integration & Compatible Parts
The 6SL3352-3AG35-8AA0 operates within the SINAMICS S120 Booksize ecosystem. Typical bill of materials for a complete drive system includes:
- Line Module (ALM/SLM/BLM): e.g., 6SL3130-6AE21-0AB1 (Active Line Module)
- Motor Modules (Booksize): e.g., 6SL3120-1TE21-0AA3 (Single Motor Module)
- DRIVE-CLiQ Hub Module: e.g., 6SL3162-2AA00-0AA0 (DMC20)
- CompactFlash Card: e.g., 6SL3054-0EJ00-1BA0
- PROFIBUS DP Cable: 6XV1830-0EH10 (shielded, per meter)
- 24 V DC Power Supply: SITOP PSU100S 6EP1334-2BA20
- Servo Motors: SIMOTICS S-1FK7 / 1FT7 series with DRIVE-CLiQ encoder
Our Quality Assurance Process
- Visual Inspection: All units inspected for physical damage, connector integrity, and label authenticity upon receipt.
- Functional Verification: Power-on test and firmware version confirmation performed before dispatch.
- Authenticity Check: Serial numbers cross-referenced against Siemens product databases where applicable.
- Secure Packaging: Anti-static ESD bags, foam cushioning, and double-wall cartons for international shipment.
- Documentation: CE declaration of conformity and test report available on request.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 24 hours.
- Confirm order and complete payment via T/T, PayPal, or other agreed method.
- Shipment dispatched with tracking number and commercial invoice / packing list.
Why Choose Konmask.com?
- ✅ Specialized in Siemens SINAMICS, SIMATIC, and SINUMERIK industrial components
- ✅ Global B2B supply to 60+ countries — OEMs, system integrators, and MRO teams
- ✅ Fast response: RFQ replied within 24 hours, urgent orders prioritized
- ✅ Competitive pricing with volume discount for repeat customers
- ✅ Secure export packaging and full shipping documentation (CO, packing list, invoice)
- ✅ After-sales technical support from experienced automation engineers
Frequently Asked Questions
Q: Is the 6SL3352-3AG35-8AA0 compatible with SIMATIC S7-300/400 PLCs?
A: Yes. Via PROFIBUS DP, the CU320-2 DP communicates natively with S7-300, S7-400, and S7-1500 PLCs using standard PROFIdrive telegrams (e.g., Telegram 1, 5, 105).
Q: Can this control unit replace an older CU320 (6SL3040-0MA00-0AA0)?
A: The CU320-2 DP is the successor generation. Hardware replacement is possible but requires firmware migration and re-parameterization. Contact our engineers for a compatibility assessment.
Q: What firmware version does this unit ship with?
A: Firmware version depends on the specific unit’s production date. We confirm the installed version before dispatch and can supply a specific CF card firmware version on request.
Q: Do you provide a warranty?
A: Yes. We offer a 90-day functional warranty on all units. Extended warranty options are available — please inquire at the time of order.
Q: Can you supply the full SINAMICS S120 drive cabinet system?
A: Yes. Konmask.com can source complete S120 drive trains including line modules, motor modules, control units, and accessories. Submit a full BOM for a consolidated quotation.
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