Product Description:

The 6SM 56-S-3000 is a synchronous servo motor manufactured by Kollmorgen for the 6SM Synchronous Servo Motors series. Designed for integration into CNC tables, automated packaging lanes, and assembly robots, this motor converts three-phase energy from an inverter drive into accurately regulated rotation. Its closed-loop construction lets controllers hold position or velocity to tight tolerances, so multiple axes can be synchronized without mechanical gearboxes. A permanent-magnet rotor and compact construction make the unit suitable for equipment where cycle accuracy and minimal maintenance are critical.

Under nominal operation, the motor delivers 1.13 kW of shaft power while turning at 3000 rpm; together, these figures indicate its continuous output. The shaft produces a rated torque of 3.6 Nm when the windings draw a rated phase current of 2.9 A from a three-phase bus centered on 400 V. The torque constant of 1.33 Nm/A links commanded current to developed torque for straightforward drive tuning. Standstill ratings specify 3.8 Nm of holding torque at 2.8 A, enabling static positioning without overheating. Static friction of 0.154 Nm must be overcome before motion starts, influencing servo gains at very low speeds.

Dynamic limits are set by the peak winding capability of 12.4 A, allowing short torque bursts during acceleration before thermal models reduce the permitted duty cycle. Electrical behavior is shaped by a phase-to-phase inductance of 54.0 mH and a resistance of 9.4 Ω; these values affect current rise time and copper loss. Mechanical response comes from a rotor inertia of 5.2 kg cm², allowing the axis to change speed quickly without requiring excessive drive effort. Heat dissipates according to a thermal time constant of 20 minutes, and the back-EMF slope of 114 V/1000 rpm helps the drive predict voltage demand. An overall mass of 6.1 kg simplifies installation on lighter machine frames.