Product Description:

The AM8031-0C21-0000 is a standard motor in Beckhoff’s AM Synchronous Servo Motors series. The unit serves as a compact rotary actuator for pick-and-place modules, conveyor axes, and packaging spindles that need high position repeatability. When combined with a Beckhoff AX-series drive, the motor uses sinusoidal current in the stator windings and reports rotor position through its integrated feedback, enabling deterministic control loops in real-time Ethernet motion networks. This operating arrangement supports coordinated motion tasks that require repeatable starts, stops, and speed changes across compact automated equipment.

Electrical ancillary devices operate on 24 VDC, so the brake coil and encoder electronics can be powered from the control cabinet’s logic supply rather than the mains. Field wiring is simplified by a rotatable angular connector or terminal box, which allows the cable outlet to be oriented in different directions to clear adjacent components. Position information is delivered by an OCT multi-turn encoder; its single-cable interface transmits power and absolute position over one hybrid line, minimizing cable runs and reducing cable clutter in tight machine sections. Mechanical mounting follows an IEC square flange of 72 mm, giving predictable pilot dimensions for gearheads or couplings. The motor uses Overall Length Code 1, indicating the shortest housing in its frame.

The embedded brake is a 24 V holding brake, so the shaft remains locked during emergency stops or power-off states and load drift is reduced on vertical axes. Continuous static locking capacity falls within a holding torque range of 2 Nm to 3.5 Nm, with the exact figure depending on the selected stack length. A smooth shaft eliminates keyways, so clamping hubs must be used to transmit torque without backlash. Winding Code C indicates the electrical resistance and inductance set selected by Beckhoff for efficient current use at typical bus voltages.