Product Description:

The M.1015.7868 is a brushless servo motor produced by Kollmorgen as part of the FSM Brushless Servo Motors series. Designed for closed-loop motion control, the motor integrates a permanent-magnet rotor, optical feedback, and a spring-applied brake to hold loads during shutdown. In automated assembly cells or packaging lines, it delivers repeatable speed and position so that controllers can coordinate linear slides, rotary actuators, or indexing tables without mechanical cams.

Its winding is rated for 230 V, and the motor reaches a maximum shaft speed of 4000 rpm, providing a usable velocity range for rapid traversal and slow positioning. The electromagnetic design yields a sine-wave torque constant of 0.54 Nm/A, so each ampere from the drive produces more than half a newton-meter of torque under sinusoidal commutation. With a rotor inertia of 0.0022 kg·m², the motor accelerates loads quickly while maintaining stability in high-gain servo loops. A spring-applied parking brake supplies 10.2 Nm of holding torque, allowing vertical axes to remain fixed when power is removed.

A built-in optical encoder generates 2000 lines, providing 8,000 quadrature counts per revolution for fine incremental positioning. The back-electromotive-force constant is 66 V/krpm, so drives must supply proportional voltage to sustain commanded speed while monitoring regeneration. Thermal management is aided by a housing-to-ambient thermal resistance of 0.48 °C/W; combined with the motor’s 16.4 kg mass, this characteristic helps limit temperature rise during continuous operation. A phase inductance of 3.3 mH moderates current ripple at the switching frequency. The phase resistance is 0.89 Ω, while the brake coil operates at 90 VDC and draws 0.20 A. Brake backlash is 44 arcminutes, and the motor has an overall length of 335 mm with the brake installed.