Product Description:

The AM8542-0F20-0000 is a servo motor manufactured by Beckhoff as part of the AM Synchronous Servo Motors series. Designed for feed axes, gantries, and other precision stages, this unit delivers closed-loop torque and speed regulation so that PLC sequences can position loads quickly and repeatably. Within modern machine cells, it pairs with Beckhoff drive controllers over a single-cable solution, allowing the control system to monitor temperature, speed, and absolute position through integrated feedback while keeping cabinet wiring compact.

Mounting is simplified by the 87 mm flange size, a standardized interface that mates directly to planetary gearboxes or frame-compatible brackets. Power and signal lines exit through a rotatable angular connector or terminal box, so the cable entry can be oriented to clear neighboring components in tightly packed machine layouts. Position data comes from an OCT multi-turn encoder that maintains absolute shaft information across power cycles, eliminating homing routines. The motor is supplied without a holding brake, so static load retention must be provided by the drive or an external mechanism. This model has increased mass moment of inertia, a feature that helps damp speed ripple when driving comparatively high-inertia tooling.

The motor uses overall length code 2, giving a medium stack length that balances continuous torque with compact depth in the machine layout. A smooth shaft eases direct coupling to clamping sleeves or hub-clamped pulleys, which helps avoid key-related backlash in reversing duty. Electrical behavior is tuned by winding code F, which indicates the rated voltage and current used to reach nominal torque without magnetic saturation. It is delivered in the standard version, which follows the baseline option set for this motor type. The connection and feedback arrangement supports compact cabling and keeps absolute position information available after power cycles.