Product Description:

The 6SM 56-S-3000-G-A is a synchronous servo motor produced by Kollmorgen within the 6SM Synchronous Servo Motors series. The unit is intended for closed-loop positioning and velocity control in automated machinery where rapid acceleration and repeatable accuracy are required. By pairing with a suitable Kollmorgen drive, the motor converts electrical input into controlled mechanical rotation so that conveyors, pick-and-place axes, or indexing tables follow precise motion profiles in manufacturing and packaging lines.

At its continuous operating point, the shaft turns at 3000 rpm while delivering a mechanical output of 1.13 kW and a nominal torque of 3.6 Nm. Supplying this load requires a rated current of 2.9 A, and the drive can momentarily command a peak of 12.4 A for acceleration or transient overloads. Electrical dynamics are influenced by a phase inductance of 54.0 mH and a phase resistance of 9.4 Ω, which affect current rise time and copper losses. With a torque constant of 1.33 Nm/A, the motor produces predictable torque per ampere across its speed range. When the energized shaft remains stationary, the standstill current is 2.8 A, and the electromagnetic design sustains a standstill torque of 3.8 Nm for static holding applications.

Mechanical response and stopping performance are shaped by the integrated holding brake, which clamps the shaft with 6.5 Nm of torque. The brake adds only 1.06 kgcm² of inertia to the system and draws 16 W during engagement, allowing compact machines to maintain position without external locks. Overall rotor inertia is 5.2 kgcm², enabling quick reversals with limited overshoot, while a static friction torque of 0.154 Nm minimizes drift at rest. The motor’s thermal mass and housing geometry provide a thermal time constant of 15 min, so temperature increases remain within limits during repeated duty cycles.