Product Description:

The A4.SM.001-6200 is a synchronous servo motor produced by Kollmorgen for the 6SM Synchronous Servo Motors series. The unit converts electrical energy into controlled rotary motion so machine tools, pick-and-place axes, and automated packaging stations can position loads with repeatable accuracy. Integrated feedback allows the drive to maintain precise speed and position control without an external encoder.

The motor delivers a nominal shaft speed of 6000 rpm and produces a continuous torque of 0.8 Nm while drawing a rated current of 2.9 A at a line-to-line voltage of 190 V. These steady-state values correspond to a mechanical power rating of 500 W, which supports light- to medium-throughput machinery. The internal copper windings have 13.1 Ω of resistance and a winding inductance of 10.7 mH; together, these values affect the electrical time constant used by the drive for current regulation. A resolver with two pole pairs supplies the rotor angle to the controller in real time, keeping commutation aligned with the magnetic flux throughout the speed range.

Dynamic limits are higher than the continuous operating values. The motor can produce up to 5.0 Nm during acceleration when the drive permits a peak current of 8.5 A, and it can produce a stall torque of 1.0 Nm at a locked-rotor current of 3.2 A. A permanent-magnet holding brake provides 2.0 Nm of holding torque and uses a 24 V DC release circuit, preventing vertical loads from moving after power is removed. The back electromotive force rises linearly with speed according to a voltage constant of 56.6 V/1000 rpm, so the inverter must accommodate regenerative voltage during rapid deceleration. The 194 mm frame length provides a compact motor profile for installations with limited axial space.