Product Description:

The MSM215-505-304-E2-0KA servo motor is produced by Kollmorgen within the MSM Brushless Servo Motors series. As a rotary actuator, it converts command currents into controlled shaft torque and position for automated machinery, making it suitable for indexing tables, packaging axes, and material-handling gantries. In industrial automation, it pairs with Kollmorgen drives to close torque and position loops.

With its 460 V winding, the motor reaches a rated speed of 3000 rpm; this speed works with six electrical poles to provide smooth commutation and low torque ripple. At that velocity, it can deliver a continuous shaft load of 57 Nm, which is limited by the heat removed from the 0.24 Ω winding circuit. The electromagnetic design produces that torque at about 1.39 Nm/A, so the drive must supply phase current in proportion to demand. During rapid acceleration, the inverter may supply up to 147.1 A(pk) without exceeding insulation limits, while the stall band begins at 45.5 A(pk). The back-electromotive-force constant is 168 V/KRPM, which affects the drive's required voltage headroom and field-weakening threshold. A 2000-line incremental encoder mounted on the shaft supplies position feedback for tight servo loops.

Transient events are handled by a peak torque reserve of 160 Nm, allowing short bursts of nearly three times the continuous rating without demagnetizing the rotor. Mechanical responsiveness is aided by a low inertia of 0.0175 kg-m², which lets the axis achieve high jerk profiles in multi-axis gantries. The laminated core has a phase inductance of 6.5 mH; when combined with the previously noted resistance, it shapes current rise time for vector control. The stainless-steel shaft carries an M12 × 1.75 mm male thread cut to a depth of 28 mm, providing a repeatable attachment point for pulleys or couplings while maintaining alignment with the encoder scale.