MSM115-62-404-E2-2KA Kollmorgen
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MPN: M.1302.1294
The Kollmorgen MSM115-62-404-E2-2KA is a brushless servo motor in the MSM Brushless Servo Motors series. It provides a continuous torque of 7 Nm and a peak torque of 22 Nm, and operates at a rated speed of 4000 RPM with a maximum current of 26.9 Amps. The motor features a 2000 line encoder for feedback and weighs 9.6 kilograms with the brake.
Internal Product Review
The MSM115-62-404-E2-2KA is a Kollmorgen brushless servo motor tuned for demanding motion-control service, with 7 Nm continuous torque and 4000 RPM rated speed. The 2000 line encoder and 22 Nm peak torque support accurate feedback and strong transient response during dynamic indexing. A 120 V/KRPM back EMF constant reinforces efficient high-speed operation.
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Product Description:
The MSM115-62-404-E2-2KA is a brushless servo motor produced by Kollmorgen within the MSM Brushless Servo Motors series. It couples a permanent-magnet rotor with an integral encoder to convert electrical energy into controlled rotary motion. In automated machinery, the unit is used for precise positioning, coordinated axis movement, and repeatable speed regulation. It serves as an electromechanical actuator that responds quickly to drive commands and supports closed-loop control in demanding motion applications.
At its rated operating point, the motor sustains 7 Nm of continuous shaft torque while the shaft turns at 4000 rpm, delivering controlled power on a constant-duty basis. A torque constant of 0.99 Nm/A links drive current to mechanical output. The 3.4 Ω phase resistance moderates current during startup and helps the servo amplifier manage rapid reversals. The windings are designed for a bus voltage of 460 V, and a back electromotive force of 120 V/krpm supports appropriate inverter voltage scaling. Position feedback is provided by a 2000-line incremental encoder, allowing the controller to detect small changes in shaft position. A machined shaft end with an M6 × 1.0 mm female thread simplifies attachment to compatible gearboxes, pulleys, or couplings.
For transient demands, the stator can draw a peak current of 26.9 A and produce 22 Nm of momentary torque, permitting rapid indexing moves. When the shaft is immobilized, the drive limits peak current to 7.8 A, protecting the motor against excessive thermal buildup during static holding. The phase inductance of 16.8 mH filters switching harmonics and supports current-loop stability. A rotor inertia of 0.00138 kg·m² helps moderate overshoot during acceleration and deceleration. The motor has a total mass of 9.6 kg and includes an integral brake powered by 24 VDC. Its bearings withstand a radial load of 48 kg during operation, allowing the shaft to support belt or pulley side loads without reducing service life under the stated operating conditions.
