Product Description:

The E3.SM.001-3400 synchronous servo motor is produced by KEB within the SM Synchronous Servo Motors series. It is intended for closed-loop motion tasks in packaging lines, pick-and-place gantries, and similar automation stages where accurate torque and velocity must be supplied from a compact electromechanical unit. By combining a permanent-magnet rotor with stator windings suited to medium-inertia loads, the motor converts drive amplifier current into rotary motion that can be precisely coordinated with PLC commands.

The motor delivers a rated mechanical output of 4.15 kW. At the nominal operating point, it turns at 3000 rpm while producing 13.2 Nm of shaft torque and drawing 8.1 A from a three-phase 400 V supply. The electrical frequency required for this speed is 250 Hz, calculated from its five pole pairs, so the drive inverter must modulate current accordingly. With a voltage constant of 164.05 Vpk per 1000 rpm, the back EMF stays within typical 400 V bus levels at rated speed. The winding resistance is 0.45 Ω, and the 4.2 mH phase inductance shapes current ripple and influences control-loop bandwidth, while the low rated current helps limit continuous thermal load on the stator.

Beyond the continuous region, the motor can sustain a stall torque of 29 Nm, holding loads motionless until the application resumes motion. During locked-rotor operation, the drive may supply 17.2 A, which is higher than the nominal value but still below the short-term ceiling of 80.9 A. For rapid indexing or shock loading, the electromagnetic system can generate up to 110.84 Nm for limited durations, and the mechanical construction tolerates rotor speeds as high as 6000 rpm before balance and bearing limits are reached. These operating ranges support brief overloads and fast acceleration changes when the drive remains within the motor's thermal and speed limits.