Product Description:

The MSK071E-0300-NN-M1-UP0-NNBN is an AC servomotor built by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. Within an automation cell, this motor supplies precise rotational movement to axes that need closed-loop speed and position control, allowing the drive controller to coordinate machinery such as pick-and-place heads or packaging spindles. Because the motor has no holding brake, stationary loads must be secured by external locking or drive torque when power is removed, especially when the axis must remain fixed after shutdown.

The motor is cooled by natural convection, so heat is removed from the stator surfaces without fans or liquid circuits, which simplifies surrounding ventilation requirements. Feedback wiring exits through a 240° rotatable connector that lets the plug align with tight cable trays and crowded machine layouts. Position data travel over the Hiperface interface, and this bidirectional link carries both sine-cosine encoder signals and digital memory parameters to the drive. The internal optical sensor generates 128 signal periods per mechanical revolution, and the scale is read as a multi-turn absolute value, so the drive retains shaft angle and total turn count after power loss. An optical scanning method avoids magnetic drift, and winding code 0300 indicates the electrical values used with compatible MSK drive modules.

The motor has size 071 and length code E, and it uses a keyed shaft for positive torque transfer to couplings or pulleys. Continuous operation is permitted at ambient temperatures from 0–40 °C, and derating is required outside this range. The housing is sealed to IP65, protecting the windings and optical encoder from airborne oil or dust during washdown spray. The sealed housing also helps protect feedback components from contamination during routine plant cleaning. Class 155 insulation allows winding temperatures up to 155 °C, giving thermal headroom during cyclic acceleration and repeated start-stop duty.