Product Description:

The AX5722 is a dual-axis unit from Beckhoff’s AX Digital Servo Drives series. Serving as a compact motion controller, it delivers power, feedback handling, and integrated safety for synchronous or asynchronous motors used in conveyor, handling, and packaging machinery. Within an automation cell, the drive forms the electrical link between the machine’s PLC and its actuators, translating position commands into tightly regulated current loops while collecting precise encoder data for closed-loop control.

The drive powers external transducers through an auxiliary encoder rail of 12 VDC and a main encoder rail of 5 VDC, ensuring compatibility with both TTL and low-power absolute sensors. Two dedicated encoder sockets accommodate 2 position feedback devices, with one system connected to each channel to avoid signal crosstalk. Position data travels over the digital interfaces BiSS C and EnDat 2.2; these serial protocols support high-resolution absolute values while providing error checking. The internal power section tolerates supply deviations of ±10%, allowing stable operation on mains that fluctuate during load changes. To meet functional safety requirements, the unit implements the STO-only mode, which removes torque-producing energy without affecting measurement channels.

For supplemental monitoring, up to 6 additional digital inputs can be wired to the drive, enabling limit switch or probe signals to be captured synchronously with motion. The interpolated position word reaches a linear resolution of 48 bits, while single-turn rotary feedback reaches up to 32 bits, and multi-turn rotary data is recorded over 16 bits for an absolute revolution count without batteries. Each output stage sources up to 0.25 A for encoder supply or brake control tasks. Motor phase power is supplied by an upstream supply module, so these low-current ports do not affect power delivery to the connected motors.