Product Description:

The KSD071C-0350-NN-M3-1P2-NNNN is an integrated servo motor-drive unit produced by Bosch Rexroth Indramat for the KSD IndraDrive Mi Motors series. By combining a power stage, feedback electronics, and the mechanical rotor in one housing, this product supplies decentralized motion control for packaging, material-handling, and assembly lines where cabinet space is limited. It converts the drive controller’s DC bus into controlled three-phase output, closes the position loop through an onboard encoder, and delivers torque directly to the load without intermediate gear trains.

The motor develops a continuous standstill torque of 10.0 Nm, giving machinery a stable holding force during long dwell periods. A torque constant of 1.85 Nm/A links commanded current to shaft force, allowing the drive to calculate precise current setpoints. The phase conductors can carry up to 17.7 A without exceeding thermal limits, and the back EMF rises linearly at 114.0 V/1000 rpm. Position feedback is generated by a Capacitive Hiperface multi-turn encoder that stores absolute position over power cycles and outputs 16 signal periods per mechanical revolution, simplifying homing routines. With a rated mechanical output of 1285 W, the unit suits medium-power axes such as indexing tables or belt drives. A rotor inertia of 0.00189 kg·m² balances quick acceleration with rotational stability.

For short bursts, the drive can deliver up to 28.0 Nm, supporting rapid starts or shock loads, while a holding torque of 16 Nm prevents vertical loads from drifting when power is removed. Internal losses appear as 175 W of heat under full electrical stress, and this energy is absorbed by the stator mass and housing. The system’s thermal time constant of 15 min shows how quickly temperature approaches equilibrium after a load change. Weighing 15.2 kg, the assembly provides a compact footprint that still offers enough thermal mass to damp temperature swings and minimize mounting vibration.