Product Description:

The MSK071E-0300-NN-M1-UP2-NNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. It converts drive-supplied three-phase power into controllable torque and speed for positioning or velocity loops on packaging, pick-and-place, and machine-tool axes. The unit combines a keyed output shaft, an integrated encoder, and an electrically released holding brake so that it can couple directly to mechanical loads, supply real-time position feedback, and secure the axis at standstill during power-off conditions in industrial automation systems. This integrated arrangement allows the motor to support motion, feedback, and load holding in one compact assembly.

The motor frame code 071 specifies a mid-sized stator diameter that fits compact machinery, while length designation E extends the active lamination stack to raise continuous torque without changing the mounting pattern. Electrical winding code 0300 matches the motor to standard IndraDrive power modules through its electrical characteristics. Heat is removed by natural convection, meeting the FN cooling requirement and eliminating the need for forced airflow. Position and diagnostic data pass to the drive through the Hiperface serial interface on a 240° rotatable connector, which simplifies cable routing inside tight control cabinets. The rotatable connection also helps keep cable bends controlled near the motor housing.

The electrically released brake delivers 30 Nm of holding torque, locking the shaft when DC power is interrupted and helping prevent load drift on vertical axes. Long-term positional integrity is maintained by the encoder’s multi-turn absolute design, which records multiple revolutions even when the motor is unpowered. Fine interpolation comes from its optical track producing 128 signal periods per revolution, which supports high servo stiffness during contouring moves. Mechanical energy reaches the application through a shaft with a keyway, giving a positive torque interface for pulleys, gears, or rigid couplings without relying only on clamping friction. The combination of absolute feedback and brake holding also supports stable restart behavior after a power interruption.