KSM02.1B-071C-24N-M1-HP0-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-M1-HP0-ET-NN-D7-NN-FW is manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. This motor-integrated servo drive places the power electronics directly on the motor housing, reducing cabinet wiring and simplifying decentralized machine layouts in automated cells where coordinated motion is required. The unit uses design version 1 and the standard mechanical option, maintaining the mounting arrangement used for this product line. Its integrated design reduces the distance between the power stage and motor while supporting distributed motion control.

Electrical power is supplied through a 750 V DC bus, allowing the drive to connect to a shared power bus with compatible Rexroth equipment. A hybrid connector carries power and control signals, reducing the number of separate plugs required at the axis. Heat is removed by natural convection, eliminating the need for cooling fans. The feedback interface uses the Hiperface protocol and works with an optical encoder that produces 128 signal periods per revolution. This arrangement provides detailed rotor-position information for accurate commutation at low speeds. Motor length C and winding code 24 indicate the active stack and coil arrangement used for mid-torque applications.

The encoder is a multi-turn absolute device, so position is retained over 4,096 revolutions without requiring a homing cycle after power-up. Command messages reach the drive through Multi-Ethernet communication, which supports EtherNet/IP, PROFINET, and EtherCAT masters. The frame has a motor size of 071, providing a compact flange for small pick-and-place arms and other space-constrained axes. A shaft with a keyway transmits torque to pulleys or rigid couplings, while a shaft seal helps limit coolant ingress during washdowns. The unit is supplied without a holding brake or integrated safety technology. External equipment must provide load retention and safety functions when the application requires them. The drive has a Basic performance level, and its Series 2 electronics provide diagnostic functions while combining motor control and the power stage in one enclosure.