Description

The DELTA TAU ACC-24E2-2CH is a high-performance motion control interface module designed for precision multi-axis servo systems in advanced automation applications. Part of Delta Tau’s renowned UMAC (Universal Motion and Automation Controller) platform, this dual-channel module provides deterministic EtherCAT connectivity and ultra-low jitter for synchronized motion in robotics, CNC machinery, and semiconductor manufacturing. The ACC-24E2-2CH integrates two independent channels, each supporting up to 8 axes of servo control with 24-bit encoder feedback resolution. Its core function bridges Delta Tau’s Turbo PMAC2 CPU with EtherCAT drives and I/O networks, enabling nanosecond-level synchronization for complex contouring and gantry systems.

Engineered for demanding environments, the DELTA TAU ACC-24E2-2CH features galvanic isolation (1,500 Vrms) on all I/O interfaces to prevent ground loop interference. The module supports SERCOS, Step/Direction, and ±10V analog command interfaces alongside direct encoder inputs (A/B/Z, SSI, BiSS-C). With real-time EtherCAT master capability and <100>ACC-24E2-2CH delivers industry-leading precision for applications like wafer steppers, laser cutting, and additive manufacturing where sub-micron accuracy is critical.

DELTA TAU ACC-24E2-2CH

Technical Specifications

Main Features and Advantages

Deterministic EtherCAT performance: The ACC-24E2-2CH achieves sub-100 ns synchronization jitter across axes using dedicated FPGA timing control. This enables precision phase-locked motion in multi-spindle systems—critical for gear machining and electronic component placement.

Flexible I/O architecture: Each channel accepts mixed feedback types (e.g., SSI absolute encoders + resolver inputs) simultaneously. Integrated SERCOS III optical ports allow legacy drive integration without additional gateways.

Advanced diagnostics: Real-time monitoring of following error, drive fault status, and encoder health via Delta Tau’s PEWIN software. Automatic cable fault detection (open/short) minimizes commissioning time.

Vibration suppression: Patented adaptive filtering algorithms in firmware dampen mechanical resonances during high-acceleration moves. The DELTA TAU ACC-24E2-2CH dynamically adjusts servo gains based on load inertia changes—ideal for robotic material handling.

Scalable topology: Daisy-chaining via EtherCAT reduces cabling by 70% compared to star architectures. Hot-swap capability (with PMAC3 CPU) allows module replacement without rebooting controllers.

Application Field

The DELTA TAU ACC-24E2-2CH excels in ultra-precision motion systems:

Semiconductor: Coordinates wafer stages in photolithography steppers with <5>

Medical Devices: Synchronizes multi-axis robotic arms in MRI-guided biopsy systems requiring EMI immunity.

Aerospace: Machines turbine blades using 5-axis CNC with real-time toolpath compensation.

Printing/Converting: Controls rotary die-cutters with electronic gearing for web tension management.

Additive Manufacturing: Drives galvo scanners in metal 3D printers with nanosecond laser timing.

Test/Measurement: Performs dynamic fatigue testing with synchronized hydraulic actuation.

Related Products

DELTA TAU UMAC CPU Turbo PMAC3: Main processor for ACC-24E2-2CH integration.

DELTA TAU ACC-65E: Breakout board for simplified ACC-24E2-2CH wiring.

DELTA TAU I/O720: Digital I/O expansion module.

DELTA TAU ACC-59E3: Analog input module (complements motion control).

DELTA TAU ETH-400: Ethernet switch for ring topology redundancy.

DELTA TAU PS3000: 24VDC power supply (optimized for UMAC racks).

DELTA TAU ACS SPiiPlus SC: Drive system compatible with ACC-24E2-2CH commands.

DELTA TAU ACC-24E2-2CH

Installation and Maintenance

Pre-installation preparation: Verify UMAC rack compatibility (requires Slot 2/3). Install Delta Tau PEWIN software for configuration. Use shielded twisted-pair cables for encoder signals with drain wires grounded at one end. For the ACC-24E2-2CH, allocate 25 mm lateral clearance for heat dissipation.

Maintenance recommendations: Monitor FPGA temperature via PEWIN diagnostics. Re-calibrate analog outputs annually using precision voltmeter. During module replacement, discharge static electricity before handling. Update firmware via Ethernet using Delta Tau’s Firmware Manager. Clean air vents quarterly in particulate-heavy environments.