Product Description:

The E3.SM.000-340F is a synchronous servo motor built by KEB within the SM Synchronous Servo Motors series. As an electromechanical actuator, it delivers closed-loop position and velocity control for indexing tables, gantry axes, and other motion tasks in industrial automation. Using permanent-magnet excitation and electronic commutation, the unit pairs with KEB drive controllers to translate current commands into rotational motion that remains synchronized with the feedback encoder. This design allows precise torque delivery while maintaining compact dimensions suitable for mounting within a machine.

It achieves a nominal shaft speed of 3000 rpm, giving motion platforms a predictable velocity range. The motor is rated at 330 V for 400 V-class operation on a 560 V DC bus. At standstill, the motor can provide a continuous torque of 29 Nm, so static loads such as vertical Z-axes can be held under servo control. Thermal losses are removed through self-cooling, meaning the frame dissipates heat without auxiliary blowers or liquid jackets, which simplifies installation inside sealed machines. The cast housing carries an ingress protection rating of IP54, permitting exposure to limited dust and water spray while protecting the winding insulation and encoder electronics.

Electrical connections reach the drive through a terminal box positioned on the stator, enabling armored power and feedback cables to exit in the orientation required by the machine frame. Rotor position is reported by the ERN 1387 sine/cosine encoder, giving the drive high-resolution feedback for smooth interpolation even at low speeds. The cylindrical shaft is machined with a feather key for positive coupling to gearheads or pulleys. A holding brake is omitted, so an external clamping device must secure parked loads when servo torque is unavailable. With a mass of 17.4 kg, the E3 frame class balances inertia against dynamic response, while the B5 IFT5-compatible flange eases alignment with IEC gearboxes.