Product Description:

The M-207-B-29-078 is a rotary servo motor produced by Kollmorgen within the M Goldline Servo Motors series. In a drive system, it couples with a compatible amplifier to deliver commanded torque and velocity, providing precise position control for automated machinery. Electrical commutation and feedback allow the motor to respond rapidly to command signals while maintaining accuracy during continuous operation.

When driven continuously, the motor can deliver 6.62 N-m of torque at 25 °C and 6.24 N-m at 40 °C while drawing 5.8 A RMS from the drive. The electromagnetic design yields a torque constant of 1.08 N-m/A RMS and a winding inductance of 32 mH, figures that set current-loop bandwidth and influence servo tuning. Phase-to-phase resistance is 2.32 Ω, establishing copper losses for thermal modeling. The winding produces a back electromotive force of 65.1 VRMS/kRPM, so regenerative voltage rises predictably with speed. Stator insulation supports operation up to 250 VRMS line input, aligning with common 240 V class amplifiers. At a commanded speed of 2800 RPM, the motor remains inside its continuous rating envelope, balancing mechanical output against temperature rise.

For short, high-demand moves, the motor withstands 19.9 N-m of peak torque while the drive may supply up to 19.5 A RMS. The lightweight rotor, only 0.0018 kg-m², supports accelerations to 11 300 rad/s², enabling rapid indexing without overshoot. Heat generated during such bursts exits through a thermal path characterized by 0.65 °C/W and a 22-minute thermal time constant, values used to set duty-cycle limits. Mechanical output at the operating point reaches 1.80 kW, providing a power-dense solution for axes that require quick settling while remaining within allowable winding temperature.