KSM02.1B-041C-42N-S1-HG0-ET-SD-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HG0-ET-SD-D7-NN-FW is a motor-integrated servo drive from Bosch Rexroth Indramat that belongs to the KSM Motor Integrated Servo Drives series. By combining a synchronous motor, encoder, power electronics, and communication interface in one housing, it reduces cabinet wiring and simplifies installation on distributed machine axes. This unit is intended for motion tasks that require compact positioning capability while operating from a shared DC bus in automated production cells.

The drive accepts power through a hybrid connector that carries DC power, control signals, and network lines in a single plug, streamlining field assembly. Heat is removed by natural convection, so no additional fans are required when the installation meets the applicable spacing guidelines. The internal inverter is supplied from a 750 V DC link, matching other IndraDrive components on the same DC network. Rotor position is reported through a Hiperface optical encoder that provides 128 signal periods per mechanical revolution, giving the controller fine velocity and position granularity. Optical encoder technology supports precise feedback with low signal noise. Winding code 42 pairs the stator with the drive's current limits to deliver the intended torque within the basic performance level. The assembly uses the standard design option, design version 1, and Series 2 platform architecture.

For real-time control networks, the unit offers Multi-Ethernet connectivity, allowing operation with EtherNet/IP, PROFINET, or EtherCAT without hardware changes. The integrated Safe Motion with SBC system supports safe torque off and safe brake control functions. The feedback device is a single-turn sensor, which provides position information within one mechanical revolution and can be used with application homing. Mechanical power is delivered through a plain shaft with a shaft seal, helping prevent coolant or dust from reaching internal components. The motor has a size of 041 and a length code of C. The assembly is supplied without a holding brake, so an external mechanism must secure vertical loads when power is removed.