Description

The ACC-51E 4096 is a versatile, high-resolution encoder feedback interface board from Delta Tau, designed for their PMAC (Programmable Multi-Axis Controller) family. This board allows PMAC controllers to precisely read and process feedback signals from a wide variety of incremental encoders, providing crucial position and velocity information for closed-loop servo control systems. The “4096” typically refers to the multiplication factor for the encoder signals, enhancing the resolution of the position feedback.

Application Scenarios

Consider a high-precision packaging machine where accurate and synchronized movement of multiple axes is essential for consistent and reliable operation. For instance, in a pharmaceutical packaging line, robotic arms might need to pick and place delicate vials with micrometer-level precision. To achieve this, high-resolution feedback from the servo motors is critical. The ACC-51E 4096 board interfaces with incremental encoders attached to these motors, multiplying their pulses by 4096. This dramatically increases the effective resolution of the position feedback sent to the PMAC controller, enabling extremely precise motion control, smooth velocity regulation, and accurate positioning of the robotic arms, ultimately ensuring the integrity and quality of the packaged products.  

Parameter

Main Parameters Value/Description Product Model ACC-51E 4096 Manufacturer Delta Tau Data Systems, Inc. Product Category Encoder Feedback Interface Board Number of Input Channels 4 Encoder Input Type Incremental, single-ended or differential Quadrature Decoding Yes (A, B, and Index channels) Multiplication Factor 4096 (typically, can vary based on configuration) Maximum Input Frequency Typically up to several MHz (consult datasheet) Interface with PMAC Connects to PMAC CPU boards via internal bus Operating Temperature 0°C to +50°C (confirm specific range in datasheet) Connectors High-density connectors for encoder inputs and internal bus Feedback Resolution Enhanced by the 4096 multiplication factor

Technical Principles and Innovative Values

• Innovation Point 1: High-Resolution Feedback Processing. The ACC-51E 4096 significantly increases the resolution of the encoder feedback signal by multiplying the number of pulses received. This high-resolution position information allows the PMAC controller to implement very precise closed-loop control, resulting in improved accuracy and reduced following errors.  
• Innovation Point 2: Versatile Encoder Compatibility. This board is designed to interface with a wide range of incremental encoders, supporting both single-ended and differential inputs. It also handles the A, B, and Index channels, providing comprehensive feedback information including position and a once-per-revolution marker.
• Innovation Point 3: Seamless Integration with PMAC Architecture. As an integral part of the PMAC family, the ACC-51E 4096 seamlessly integrates with Delta Tau’s PMAC CPU boards. This tight integration ensures efficient and high-speed transfer of encoder data to the controller for real-time motion control calculations.
• Innovation Point 4: Enhanced Performance for Demanding Applications. The high resolution and robust design of the ACC-51E 4096 make it suitable for applications requiring extremely precise positioning and smooth velocity control, such as semiconductor manufacturing equipment, precision robotics, and high-accuracy CNC machines.

Application Cases and Industry Value

In the semiconductor wafer fabrication industry, the precise positioning of the wafer under processing heads is absolutely critical for achieving the required micro-scale features. The Delta Tau ACC-51E 4096 plays a vital role in these high-precision motion systems. By receiving and multiplying the signals from high-resolution rotary encoders attached to the linear stages, the ACC-51E 4096 provides the PMAC controller with extremely fine-grained position feedback. This enables the precise and repeatable movement of the wafer stages, ensuring the accuracy and yield of the semiconductor manufacturing process. Users in this industry value the ACC-51E 4096 for its ability to deliver the high-resolution feedback necessary for achieving nanometer-level positioning accuracy, directly contributing to the production of advanced microelectronic devices.  

Related Product Combination Solutions

1. Delta Tau PMAC CPU Boards (e.g., PMAC Turbo, PMAC2, PMAC3): The ACC-51E 4096 requires a PMAC CPU board to process the encoder feedback and implement motion control algorithms.
2. Incremental Encoders (Rotary and Linear): The ACC-51E 4096 is designed to interface with various incremental encoders from different manufacturers, providing position feedback from the motors or linear actuators.
3. Delta Tau UMAC Turbo/UMAC CPU: For systems requiring a larger number of feedback channels or higher performance, the ACC-51E 4096 can be used with Delta Tau’s UMAC platform.
4. Servo Drives and Motors: The precise position feedback provided by the ACC-51E 4096 enables accurate closed-loop control of servo drives and motors, resulting in precise motion.
5. Delta Tau Breakout Boards and Wiring Accessories: These facilitate the connection between the ACC-51E 4096‘s high-density connectors and the encoder signals.
6. Delta Tau Motion Control Software (e.g., IDE, Power PMAC IDE): Delta Tau’s software is used to configure the encoder interface parameters and program the motion control sequences that utilize the feedback from the ACC-51E 4096.
7. Analog Output Boards (e.g., ACC-68E): In a complete motion control system, the ACC-51E 4096 provides feedback, while an analog output board like the ACC-68E generates the control signals for the servo drives.
8. Fieldbus Communication Modules: For integrating the PMAC system with other automation components, fieldbus modules allow the encoder data and control commands to be shared across the network.