Product Description:

The MSK101E-0302-FN-S3-AB0-NNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. It converts drive current into controlled rotary motion for precision axes in packaging equipment and metal-cutting centers. The motor is supplied without a holding brake, so position retention during power-off conditions must be provided by external locking hardware or by the drive when the axis is energized. The unit integrates with compatible Rexroth power stages and supports the fast torque response needed for interpolated positioning and speed-controlled tasks. This type of motor is commonly used where smooth acceleration and repeatable axis motion are required throughout automatic cycles.

The motor employs liquid cooling, routing coolant through its stator jacket to extract heat from the copper and keep winding temperatures stable during peak current cycles. Feedback is transmitted over the Hiperface interface, which carries both absolute position data and stored motor data on the same eight-wire cable. Inside the encoder, capacitive electronics generate 16 signal periods per mechanical revolution, and the drive interpolates these periods for high-resolution speed control. Because the measuring system is single-turn, the encoder reports positions within one shaft rotation and resets after 360 degrees, which suits axes that perform a reference move at startup. The laminated core diameter of 101 mm sets the electromagnetic cross-section for torque production. The cooling circuit also helps the motor maintain steady performance during repeated acceleration and deceleration cycles.

The housing is sealed to IP65, preventing dust ingress and resisting low-pressure water jets near coolant spray zones. The insulation system is class 155, so the windings can tolerate continuous hot-spot temperatures up to 155 °C when the thermal path is maintained correctly. Power enters through an A-side axial connector, which helps keep cable routing aligned with machine layouts where the motor flange faces the work area. The permitted ambient range is 0–40 °C, and operation outside that window requires derating or added cooling capacity. These features support use in enclosed machine areas where thermal control, stable feedback, and protected cable entry are important for continuous servo operation.