Universal regenerative energy unit

The AX8820 regenerative energy unit from Beckhoff enables wide-ranging machines and systems to feed power back into the grid, reducing wasted electricity and boosting sustainability. This compact module is compatible with the AX8000 multi-axis servo system, AX5000 digital compact servo drives, and third-party devices. Using sinusoidal regeneration, the AX8820 prevents the grid distortions common with block-shaped regeneration.

The AX8820 regenerative energy unit is designed for a nominal supply voltage of 400 to 480 V AC, nominal output of 7 kW, and a maximum DC link voltage of 848 V DC. For effective energy management, the regenerative energy is initially stored in the DC link. The AX8820 feeds power back into the grid just before the overvoltage threshold of the connected devices is reached. Several AX8820 regenerative units can work in parallel to optimally adapt the regenerative power to the needs of the machine.

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