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High-performance AX8000 multi-axis servo system

BECKHOFF Automation announces the release of the new AX8000 multi-axis servo system featuring a compact form factor for space-saving control cabinet installations.

Designed as a drive controller suitable for meeting high requirements for controlling speed and accuracy, as well as optimised utilisation of space, the AX8000 multi-axis servo system features a modular design and offers various supply modules, single and double-axis modules, and a capacitor module.

Measuring 223mm in height and 60mm or 90mm in width, the individual AX8000 modules and the complete AX8000 multi-axis systems are exceptionally compact, facilitating space-saving and cost-effective design of control cabinets and switchgear enclosures. Fast and simple installation and commissioning of the components by simply plugging together the desired axis modules, as well as One Cable Technology (OCT) and direct integration of safety functionality and mains filters, enable further cost reductions.

Fastest possible performance with highly precise positioning

The EtherCAT-based AX8000 compact drive system combines powerful FPGA technology with multi-core ARM processors. FPGA-based control algorithms with multi-channel current control technology enable sample and response times of less than 1 µs for current control as well as velocity control cycle times as low as 16 µs, depending on the configured switching frequency. With minimum EtherCAT cycle time being 62.5 μs, the drive system helps achieve the fastest possible control performance and high-precision positioning in motion applications, along with increased contour sharpness in processing and higher production output, boosting the bottom line.

Modular system design caters to a wide range of applications

Two 60mm and two 90mm wide power supply module variants are available for different worldwide voltage systems including 100 to 230 V AC with 20 or 40 A for Asia and North America as well as 400 to 480 V AC with 20 or 40 A for Europe and North America. A brake resistor, brake chopper, and mains filter are integrated in all four versions eliminating the need for additional external components, and reducing both the variability of parts and space requirements.

A 60mm wide single-axis module with a rated current of 8 A, and an equally wide double-axis module with 2 x 6 A are available along with a 90mm single-axis module with a rated current of 18 A to implement the desired axis configurations. Considerably lower rated motor currents are covered via the scalable motor current measurement. The one-cable solution OCT (One Cable Technology) is used as the efficient feedback and connection system. Additionally, the AX8000 system provides four digital inputs per axis including two preconfigured for onboard safety functions.

Simplified logistics and installation

Beckhoff’s AX8000 multi-axis servo system simplifies logistics and inventory management through the use of fewer, more flexible system components. The highly scalable motor current measurement helps cover a comprehensive range of applications with just 8 and 18 A modules, effectively reducing the usual requirement of assorted module types.

The TwinCAT runtime integrated into the AX8000 series provides convenient software modules for highly precise control of speed and position. The customer can program motion control projects using IEC 61131-3 languages, C++, and MATLAB/Simulink. Efficient diagnostic tools are provided in the TwinCAT Scope software oscilloscope and the axis optimisation functions provided with TwinCAT BodePlot.

The integrated AX-Bridge quick-connection system enables fast and simple installation by connecting the AX8000 modules in a fail-safe manner without tools by means of spring force accessories. Key benefits also include centring for easier alignment of the axis modules and simple connection of motors via One Cable Technology with a quick-connector, reducing the number of required cables.

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