Product Description:

The MSK071D-0300-NN-M2-UP1-RNNN is part of the MSK IndraDyn S Synchronous Motors series produced by Bosch Rexroth Indramat. As an IndraDyn S synchronous servomotor, it provides closed-loop torque and position control for servo axes in packaging lines, material-handling systems, and machine tools. Its compact housing supports direct installation where machine space is limited, and the keyed shaft provides a positive mechanical connection to couplings or driven elements. Integrated feedback hardware allows the connected drive to regulate current, speed, and position during rapid acceleration, deceleration, and indexing moves. This makes the motor suitable for applications that require stable motion at both low speed and fast cycle rates.

Thermal management relies on natural convection, so the housing dissipates heat without forced airflow and helps simplify enclosure layout. The motor has frame size 071 and length code D, which correspond to the physical envelope and active stack used in this version. Winding code 0300 matches the electrical characteristics expected by the drive, including the current and voltage behavior associated with this motor. A shaft with a keyway transfers torque through positive locking, and an increased-concentricity rotor design helps reduce radial runout during high-speed operation. An electrically released holding brake provides 23 Nm of static torque to hold a vertical axis or suspended load at standstill and to help prevent drift when power is removed.

Position feedback uses an optical measuring system with a 240° rotatable connector, making it easier to route the cable in confined machine spaces. Communication with the drive takes place through EnDat2.1, so the feedback channel can carry high-resolution position data with the format expected by compatible controllers. The encoder provides 2048 signal periods, and the electronics store position in a multi-turn absolute format so the drive can retain revolution information across multiple shaft turns. This arrangement supports accurate startup behavior after power interruptions and helps maintain repeatable positioning over the full travel range of the axis. Absolute position feedback also reduces the need for reference seeking after a normal restart, which is useful on axes that must return to service quickly.