Product Description:

The KSD071C-0240-NN-M1-1G0-NNNN is an integrated servo motor-drive unit manufactured by Bosch Rexroth Indramat and is part of the KSD IndraDrive Mi Motors series. By combining power electronics, encoder feedback, and the mechanical actuator into one assembly, it provides decentralized motion control for multi-axis machines, conveyors, and packaging stations. Its role in industrial automation is to deliver precise torque and speed regulation directly on the machine frame while reducing cabinet wiring and lowering thermal load inside centralized enclosures. This integrated layout also suits machine designs that place drive hardware close to the moving axis, which helps reduce the need for long motor cables.

The drive section can supply a peak phase current of 17.7 A during dynamic acceleration or shock loading. Under steady mechanical lock, it stabilizes at a standstill current of 4.6 A, helping the thermal system reach equilibrium without excessive copper heating. The unit can produce up to 35 Nm of maximum torque, allowing short bursts to overcome inertial or frictional spikes. Its torque constant is 2.52 Nm/A, linking commanded current to shaft torque for predictable response during normal operation.

When the shaft remains static and the winding temperature rise is 60 K, the drive maintains a standstill torque of 10.5 Nm, which supports position holding on vertical or heavily loaded axes without a mechanical brake. Thermal soak behavior has a 15 min thermal time constant, so the drive can model winding heat buildup over typical duty cycles. Dynamic response benefits from a rotor inertia of 0.00173 kg·m², which supports fast acceleration with limited overshoot. During motion, the motor has a back EMF constant of 155 V/1000 rpm, which the drive can use for internal speed estimation during field-oriented control.