Siemens 6AU1425-2AD00-0AA0 – Multi-Axis Programmable Motion Controller | SIMOTION D425-2 DP/PN Platform
Engineering Background: The SIMOTION D425-2 DP/PN is Siemens’ flagship drive-based motion controller from the SIMOTION D series, engineered for high-performance multi-axis synchronization in demanding industrial automation environments. Built on the SINAMICS S120 drive platform, it integrates motion control, PLC logic, and technology functions into a single compact unit — eliminating the need for a separate CPU module.
Product Positioning: Designed for OEM machine builders and system integrators requiring deterministic, high-speed axis coordination across packaging, printing, textile, and precision manufacturing applications. The 6AU1425-2AD00-0AA0 supports up to 6 servo axes with sub-millisecond cycle times, making it the preferred choice for engineers who cannot compromise on synchronization accuracy.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Order Number (MLFB) | 6AU1425-2AD00-0AA0 |
| Product Family | SIMOTION D425-2 DP/PN |
| Platform | SINAMICS S120 Drive-Based |
| Processor | Dual-core, 800 MHz |
| Max. Controlled Axes | Up to 6 servo axes (expandable via CX32-2) |
| Motion Control Cycle | 0.125 ms – 4 ms (configurable) |
| PROFIBUS DP Interface | 2× DP Master/Slave (up to 12 Mbit/s) |
| PROFINET IO Interface | 1× PROFINET IRT (100 Mbit/s), RT & IRT capable |
| Ethernet (X127) | 1× 10/100 Mbit/s (service/engineering) |
| USB Interface | 1× USB 2.0 (front panel) |
| CompactFlash Slot | 1× CF card (program & data storage) |
| Drive Object Support | SERVO, VECTOR, V/f, Active Line Module |
| Technology Functions | Cam, Gear, Path interpolation, Electronic shaft |
| Programming Languages | ST, LAD, FBD, MCC (IEC 61131-3 compliant) |
| Supply Voltage | 24 V DC (via SINAMICS S120 CU) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +70 °C |
| Protection Rating | IP20 |
| Dimensions (W×H×D) | 50 mm × 380 mm × 270 mm (approx.) |
| Weight | Approx. 3.6 kg |
| Certifications | CE, UL, cUL, RoHS |
| Country of Origin | Germany |
Proven Application Environments
- Packaging Machinery: High-speed pick-and-place, form-fill-seal, and cartoning lines requiring precise multi-axis cam synchronization.
- Printing & Converting: Register control, tension management, and web guiding in offset, flexo, and digital printing systems.
- Textile & Winding: Warp beam control, traversing drives, and spindle synchronization in weaving and knitting machines.
- CNC Machining Centers: Coordinated interpolation for milling, grinding, and turning with SIMOTION path control.
- Robotics & Handling: Kinematic transformation for gantry, delta, and SCARA robot configurations.
- Test Benches: Torque and speed profiling with real-time data acquisition via PROFINET.
Engineering Advantages
- Drive-Integrated Architecture: Motion controller resides directly on the SINAMICS S120 Control Unit — zero latency between motion commands and drive response.
- Dual-Protocol Fieldbus: Simultaneous PROFIBUS DP and PROFINET IRT on a single unit eliminates gateway hardware and reduces cabinet footprint.
- IRT Isochronous Real-Time: PROFINET IRT ensures deterministic cycle synchronization down to 250 µs for tight multi-drive coordination.
- Scalable Axis Count: Expand from 6 to 32+ axes by adding CX32-2 Supplementary Controller Modules without changing the master controller.
- Unified Engineering: Programmed entirely within SIMATIC STEP 7 / TIA Portal + SCOUT TIA — single project tree for drives, motion, and PLC logic.
- Hot-Swap CF Card: Program backup and firmware updates via CompactFlash without PC connection — critical for rapid field replacement.
System Architecture & Signal Flow
The 6AU1425-2AD00-0AA0 mounts directly onto the SINAMICS S120 booksize Motor Module rack. Internal DRIVE-CLiQ communication links the D425-2 to Motor Modules, SMC sensor modules, and Active Line Modules at 100 Mbit/s with hardware-synchronized clock. The motion kernel executes interpolation cycles independently of the PLC task, ensuring axis commands are never delayed by ladder logic execution. PROFINET IRT output connects to distributed I/O (ET 200SP/MP) and third-party IRT devices. PROFIBUS DP handles legacy field devices and HMI panels. The X127 Ethernet port provides isolated access for SCOUT TIA commissioning and remote diagnostics without interrupting production traffic.
Sourcing & Quality Verification
- ✅ OEM-Traceable Stock: All units sourced through verified Siemens authorized distribution channels or directly from decommissioned OEM production lines.
- ✅ Pre-Shipment Inspection: Each unit undergoes visual inspection, label verification (MLFB cross-check), and firmware version confirmation before dispatch.
- ✅ Authenticity Guarantee: Siemens holographic labels, serial number traceability, and original packaging where available.
- ✅ Warranty: 12-month functional warranty against manufacturing defects. DOA replacement within 7 business days.
- ✅ Export Compliance: All shipments comply with applicable export control regulations. Documentation provided upon request.
Procurement Process
- Confirm Compatibility: Verify your SINAMICS S120 booksize frame size and firmware version (recommend V4.7 SP10 or later for D425-2).
- Request Quote: Contact support@konmask.com with your project quantity and delivery timeline for volume pricing.
- Order Placement: Purchase directly via this listing or submit a PO for NET30 terms (approved accounts).
- Lead Time: In-stock units ship within 2 business days. Ex-stock lead time for bulk orders: 5–10 business days.
- Shipping: DHL Express, FedEx International Priority, or sea freight for pallet quantities. Full tracking provided.
- Documentation: Commercial invoice, packing list, CE declaration, and test report included with every shipment.
Technical FAQ
Q: Is the 6AU1425-2AD00-0AA0 compatible with SINAMICS S120 chassis format?
A: No. The D425-2 is designed exclusively for the S120 booksize format. For chassis applications, refer to the SIMOTION D455-2 series.
Q: Can I use TIA Portal V17/V18 to program this controller?
A: Yes, with SCOUT TIA V5.4 or later integrated into TIA Portal V17+. Ensure your firmware is updated to V5.x for full TIA Portal compatibility.
Q: What is the maximum PROFIBUS DP cycle time achievable?
A: With equidistant bus cycle enabled, minimum DP cycle is 1 ms at 12 Mbit/s with up to 8 slaves. Actual performance depends on slave count and data volume.
Q: Does this unit support Safety Integrated functions?
A: The D425-2 DP/PN supports Safety Integrated Basic Functions (STO, SS1, SBC) via PROFINET PROFIsafe. Extended Safety requires Motor Modules with Safety option.
Q: Can the CF card from a D425-2 be transferred to a replacement unit?
A: Yes. The CF card contains the complete project, license keys, and drive parameters. Direct card transfer enables rapid replacement without re-commissioning in most cases.
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