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Description
Application Scenarios
Picture a high-speed copper foil production line where maintaining constant material tension is critical to product quality. Fluctuations in tension can cause tearing or uneven thickness, leading to costly material waste and downtime. The Siemens 6AU1425-0AA00-0AA0 tackles this challenge by acting as the master brain in a direct tension closed-loop control system. In this configuration, the 6AU1425-0AA00-0AA0 takes in real-time feedback from tension sensors, processes complex PID algorithms, and executes rapid, precise adjustments to the winding servo drives. The result is a speed fluctuation of only 0.34% and a tension fluctuation of just 1.75%, delivering the high-precision control that modern foil production demands. This capability extends beyond just foil production, offering a powerful and reliable control solution for any application requiring synchronized multi-axis motion and tight process control, from winders and un-winders to precision robotic handling.
Parameters
| Main Parameters | Value/Description |
|---|---|
| Product Model | 6AU1425-0AA00-0AA0 (D425) |
| Manufacturer | Siemens |
| Product Category | Drive-Based Motion Controller |
| Max. Controllable Axes | 16 axes |
| Integrated Drive Control | Servo: 6, Vector: 6, V/f: 12 (via SINAMICS S120 CU320-2) |
| Performance Class | BASIC Performance |
| Min. Servo/Interpolator Cycle | 0.5 ms |
| Min. PROFIBUS Cycle | 1 ms |
| Work Memory (RAM) | 78 Mbyte (including 20 Mbyte for Java) |
| Retentive Memory | 364 kbyte |
| Persistent Memory (CF Card) | 1.5 Gbyte |
| Digital Inputs | 12 (galvanically isolated in groups of 6) |
| Digital I/O (Configurable) | 16 (parameterizable as DI/DO, probe input, or cam output) |
| Communication Interfaces | 4x DRIVE-CLiQ, 2x PROFIBUS, 2x Ethernet, 2x USB, 1x option slot |
| Supply Voltage | 24 V DC (20.4 – 28.8 V) |
| Typical Power Loss | 24 W |
| Degree of Protection | IP20 |
| Operating Temperature | 0 °C to 55 °C |
| Dimensions (H x W x D) | 380 x 50 x 270 mm |
Technical Principles and Innovative Values
Innovation Point 1: Seamless Integration of Logic and Motion Control
The Siemens 6AU1425-0AA00-0AA0 breaks down the traditional barrier between a PLC and a drive. It integrates motion control, PLC logic, and technological functions onto a single platform. Users program everything through the SIMOTION SCOUT engineering environment, simplifying development and enhancing system reliability by eliminating the complexities of communicating between separate controllers. The 6AU1425-0AA00-0AA0 offers a scalable solution for 16-axis systems, bringing the power of integrated automation to mid-range applications.
Innovation Point 2: High-Speed I/O with Advanced Technological Functions
The onboard digital I/O of the 6AU1425-0AA00-0AA0 is not just for simple on/off signals. The 16 configurable I/Os can be programmed for advanced functions, such as high-speed probe inputs (with 1 µs resolution) or cam outputs (with 10 µs reproducibility). This allows the 6AU1425-0AA00-0AA0 to interact directly with sensors and actuators for precision tasks without requiring specialized external modules, reducing both cost and cabinet space. For example, in copper foil tension control, this capability enables rapid sensor sampling and immediate, high-resolution drive adjustments.
Innovation Point 3: Flexible Axis Configuration
The Siemens 6AU1425-0AA00-0AA0 leverages its integration with SINAMICS S120 drives to offer a flexible choice of axis types within a single system. A user can drive up to 6 servo axes for high-performance positioning, 6 vector axes for torque-intensive applications, and up to 12 V/f axes for basic speed control, all within the constraints of the 16-axis maximum. This versatility makes the 6AU1425-0AA00-0AA0 a “one-size-fits-many” solution for complex machines requiring varied drive control types.
Innovation Point 4: Deterministic Communication Cycles
Achieving precision motion control requires deterministic, low-jitter communication. The 6AU1425-0AA00-0AA0 supports isochronous PROFIBUS communication, enabling equidistant cycles for synchronized data exchange with connected drives. This ensures that position and velocity setpoints are delivered to the drives with consistent timing, a critical factor for achieving the 0.5 ms servo clock cycle and the sub-2% tension control performance verified in real-world applications.
