Product Description:

The MSK071E-0300-FN-S1-UG0-NNNN is a synchronous servomotor produced by Bosch Rexroth Indramat and delivered within the MSK IndraDyn S Synchronous Motors series. This standard-design unit functions as a direct torque and speed actuator for CNC axes, handling positioning tasks that demand precise electrical commutation. By pairing with IndraDrive controllers, the motor converts commanded current into controlled shaft rotation, making it suited for packaging lines, pick-and-place gantries, or forming presses where cycle accuracy and repeatability are critical.

The motor is equipped with liquid cooling, so heat is extracted through an internal jacket rather than relying on ambient airflow. This permits higher continuous torque in tight machine frames. Because it is supplied without a holding brake, any static load must be secured by the drive or an external clamp when power is removed. Its feedback cable exits through a 240° rotatable connector, so the plug can be oriented to match cabinet routing without twisting leads. Position data are exchanged over the Hiperface protocol, which carries both absolute angle and drive parameters on a two-wire pair. Inside the encoder, an optical scanning head counts 128 signal periods per mechanical revolution, providing fine incremental interpolation for smooth velocity control.

In operation, the single-turn measuring range means the encoder resolves one mechanical revolution before its count resets; this characteristic is identified as Singleturn and suits applications that home at power-up. A plain shaft without a keyway minimizes radial runout and mates with clamp couplings used on the 071 frame, whose outer diameter remains unchanged across length variants. The motor body follows length code E, which increases the active lamination stack for higher torque than shorter versions. The three-phase stator uses winding code 0300, so drive parameter settings must match that electrical constant for proper current vector alignment.