Product Description:

The 14.SM.001-3400 is a synchronous servo motor manufactured by KEB for the SM Synchronous Servo Motors series. In an automated line, it interfaces with a matching inverter to create finely regulated rotary motion, allowing accurate positioning and speed regulation on packaging stations, gantry axes, and small machining spindles. The motor’s permanent-magnet design supplies rapid torque response, giving machine builders an electrical alternative to pneumatic cylinders where tighter accuracy and dynamic performance are required.

During continuous duty, the unit outputs 3.5 kW of mechanical power while operating from a three-phase supply of 400 V. At its rated speed of 3000 rpm, the shaft can sustain a steady load of 11 Nm and draws a phase current of 5.8 A. These rated figures describe the constant operating point that the drive must support for thermal balance. A 2-pole resolver mounted on the rotor supplies angle feedback so the controller can close the velocity and position loops without external feedback devices. Stator windings exhibit an inductance of 8.2 mH and a resistance of 2 Ω, values that influence the current slew rate and copper losses inside the motor. A voltage constant of 168.9 V per 1000 rpm specifies the back-EMF produced at speed and assists in selecting a drive with an adequate DC-bus rating.

Capability beyond the continuous point is provided by a maximum torque of 70 Nm for short accelerations and a stall torque of 14 Nm for static holding under full excitation. An electromechanical brake rated at 36 Nm applies holding force when power is removed; it is energized by 24 VDC and consumes 26 W. Peak dynamic current can reach 40 A, so the connected inverter must tolerate these transients. The enclosure carries an IP65 rating, blocking dust ingress and low-pressure water jets so the motor can be mounted on open machine frames without additional covers.