Product Description:

The KSM02.1B-041C-42N-M3-HG2-ET-L3-D7-ES-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat and belongs to the KSM Motor Integrated Servo Drives series. The unit merges a synchronous motor with decentralized drive electronics so that motion control can be placed near the mechanical load rather than in a separate control cabinet. This arrangement shortens motor cable runs and helps reduce cabinet space in distributed machine layouts. With a motor size of 041 and length C, the device suits machines that need moderate torque without increasing cabinet depth. Its design version 1 is intended for basic performance applications in conveying, packaging, and handling stations.

Power, feedback, and safety wiring share a single hybrid connector, reducing cabling to one shielded line. The drive draws from a shared DC 750 V bus, which supports energy exchange between axes during acceleration and braking. Rotor position is monitored by a Hiperface sensor that uses capacitive technology and delivers 16 signal periods per revolution while maintaining absolute position through its multi-turn register. An electrically released brake engages when bus power is lost, holding the shaft until 24 V control power returns. The stator uses winding code 42 for the 041 frame. External master communication uses the Multi-Ethernet option and supports EtherNet/IP, PROFINET, or SERCOS III networks.

Output torque is transmitted through a plain shaft, and a shaft seal is fitted to block dust or coolant ingress during washdown cycles. Thermal management relies on natural convection, so the housing fins must remain unobstructed to dissipate operating losses. The brake releases at DC 24 V, coordinated by the controller’s low-voltage supply. When an emergency stop is requested, the dual-channel Safe Torque Off (STO) function disconnects gate signals so motor current falls to zero without interrupting fieldbus communication. This operating behavior allows status exchange to remain available while torque-producing current is disabled.