KSM02.1B-041C-42N-S1-HP2-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HP2-ET-L3-D7-TO-FW is manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. The unit integrates a servo motor, drive electronics, and feedback into one enclosure, allowing it to mount directly on moving axes and reduce cabinet wiring in distributed automation layouts. It provides precise torque and speed regulation for packaging stations, pick-and-place gantries, and material transport modules. Its integrated design also reduces the number of separate components that must be installed around each controlled axis.

The drive operates from DC 750 V, supplying the inverter that powers the stator with winding code 42. Heat is removed through natural convection, so no fans or ducts are needed. Power, brake, safety, and Ethernet conductors share one hybrid connector, reducing the number of separate cable connections. Control data moves through Multi-Ethernet, which supports PROFINET, EtherNet/IP, or EtherCAT communication. Position feedback comes from a Hiperface encoder that delivers 128 signal periods per revolution. The optical, single-turn sensor provides position information for standard motion-control tasks. The unit has a Basic performance level and uses its integrated electronics to regulate the motor without a separate drive controller in the cabinet.

The motor has a size 041 frame and length C, providing a compact footprint for slide-mounted axes. An electrically released holding brake engages at rest and opens when a DC 24 V signal is present, securing vertical loads during a loss of power. Functional safety is provided by Safe Torque Off (STO), which disables torque-producing output without additional power relays. Output torque is transmitted through a shaft with a keyway, providing positive engagement with a compatible coupling. A shaft seal helps prevent coolant and dust from entering around the output shaft. The unit has hardware revision 2 and design version 1. Its integrated shaft seal supports protected installation in industrial machinery where airborne debris or occasional fluid exposure may be present.