KSM02.1B-061C-35N-S3-HG0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-S3-HG0-ET-L3-D7-TO-FW is a motor-integrated servo drive from Bosch Rexroth Indramat, supplied under the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet synchronous motor with decentralized power electronics, eliminating the need for a separate cabinet inverter and reducing wiring runs. As a Series 2 unit, it delivers closed-loop torque and speed control for compact automation cells, pick-and-place stations, and conveyor segments. Housing the drive and motor together supports efficient installation, direct cable routing, and centralized thermal management at the machine axis.

The drive operates from a bus supply of DC 750 V and communicates through Multi-Ethernet, allowing direct connection to several Ethernet-based fieldbuses without additional interface modules. Position feedback is handled by a Hiperface encoder that provides 16 signal periods per revolution. The capacitive sensing system uses a single-turn configuration, providing absolute position within one shaft revolution. Functional safety is implemented through Safe Torque Off, which removes torque-producing motor power without cycling the DC link. The drive does not include a holding brake, so external mechanics or drive torque must secure a stopped load. Winding code 35 identifies the stator wire size and electrical resistance associated with this KSM02 power class.

A front-mounted hybrid connector combines DC power, network, and I/O lines in one plug, reducing the number of separate cable connections at the drive. Heat produced by the electronics is dissipated through natural convection, so no fans or liquid cooling circuits are required. The servo uses the compact 061 frame with a plain shaft and a dedicated shaft seal that restricts the entry of contaminants. Length code C increases the magnetic stack for higher continuous torque while leaving the overall frame width unchanged. The unit has a basic performance level suitable for standard decentralized motion-control functions. Design version 1 establishes the mechanical layout used by this model.