Product Description:

The M.1015.7856 is a brushless servo motor produced by Kollmorgen for the FSM Brushless Servo Motors series. Designed for closed-loop motion tasks, this unit converts drive current into precise shaft torque and speed for automated lines, pick-and-place heads, and indexing tables in industrial machines. An integrated spring-applied, electrically released brake holds the shaft when power is removed, allowing the motor to secure loads in vertical or safety-critical axes.

At a brake supply of 24 V DC, the coil draws 0.69 A DC, so the brake circuit requires less than one ampere of steady current. Once energized, the brake can withstand 10.2 Nm of static load; residual play is limited to 44 arcminutes of backlash, indicating the maximum shaft rotation before lockup. The back-EMF constant is 66 V/kRPM, meaning every 1,000 rpm produces 66 volts of generated voltage, a key parameter for drive selection and regeneration calculations. With a sinusoidal torque constant of 0.54 Nm/A, each ampere of phase current produces just over half a newton-meter of torque. The stator windings have 6.8 mH of inductance and 2.24 Ω of resistance, which influence current ripple, drive bandwidth, and thermal loss.

The motor can run continuously at up to 4000 rpm, and the NEMA 56C mounting face aligns with standard gearboxes and pump adapters for straightforward installation. A rotor inertia of 0.0011 kg·m² balances acceleration with stable control, while the shaft tolerates 17.2 kg of radial load at top speed without exceeding bearing limits. The overall length, including the brake, is 257 mm, and the total mass with the brake installed is 10.9 kg. Heat produced in the windings travels through a thermal path rated at 0.63 °C/W; when the frame temperature reaches the thermostat set point of 140 °C, an internal switch opens to protect the insulation.