Product Description:

The A1.SM.503-64B0 synchronous servo motor is manufactured by KEB and positioned within the SM Synchronous Servo Motors series. It is designed to translate electrical power into controlled mechanical rotation, supplying closed-loop torque and velocity to machinery axes, pick-and-place heads, and other motion elements in automated production lines. When paired with a compatible KEB inverter, the motor forms part of a drive system that can maintain position accuracy, track command profiles, and respond quickly to load changes typical in packaging, electronics assembly, and material handling equipment.

At standstill, the rotor can deliver a torque of 0.5 Nm while drawing 0.85 A; this combination indicates the magnetic loading and thermal baseline for sizing the drive amplifier. When acceleration peaks occur, the winding can accept up to 4.9 A and generate as much as 2.69 Nm of torque, giving short-term headroom for overcoming inertia or friction. The maximum permissible speed is 12000 rpm, so coupling elements and feedback devices must be suitable for that rotational limit. This continuous current level keeps stall operation within the thermal design, and convection or forced-air cooling inside the cabinet is usually sufficient.

The electromagnetic design is built around 3 pole pairs, giving a balanced compromise between step resolution and electrical frequency. Back electromotive force is characterized by a voltage constant of 52 Vpk/1000 rpm, so the inverter must supply line-to-line voltages that scale with speed while staying within insulation limits. Dynamic current transitions are influenced by a stator inductance of 82.4 mH, and copper losses are set by a winding resistance of 39.4 Ω. These parameters influence the control bandwidth, torque ripple, and efficiency profile when the motor operates in vector-controlled or sinusoidal commutation modes.