KSM01.2B-076C-035N-M1-HP2-SE-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM01.2B-076C-035N-M1-HP2-SE-NN-D7-NN-FW is part of the KSM Motor Integrated Servo Drives series from Bosch Rexroth Indramat. This motor-integrated servo drive combines a permanent-magnet synchronous motor with a drive controller in one housing, reducing the amount of cabinet wiring required for distributed automation. It belongs to design version 2 of the series and uses frame size 076 with length code C. The unit is intended to provide closed-loop motion control on machines that require decentralized installation. Its integrated arrangement places the motor control electronics near the driven axis, reducing the length and complexity of power and feedback connections.

The drive produces a continuous standstill torque of 8.7 Nm, allowing it to hold or slowly index loads without additional gearing. Its rated mechanical output is 1240 W, supporting operation at typical process speeds under nominal load. A torque constant of 1.85 Nm/A provides a predictable relationship between commanded phase current and shaft torque for current-controlled operation over the SERCOS interface. The integrated power electronics can supply up to 17.7 A of phase current before reaching the thermal limit. The housing has an IP65 degree of protection, helping prevent dust ingress and protecting the assembly from low-pressure water jets when it is mounted directly on a machine frame. The unit has a Basic performance level and a B05 mounting design for installation on compatible machinery.

During rapid acceleration, the motor can produce a peak torque of 29.0 Nm, while a bypass path accommodates transient current of up to 25.0 A to protect the semiconductor switches. Steady-state heat generation is limited to 165 W, allowing the unit to operate in sealed enclosures with moderate airflow. The drive can withstand a short-circuit current of 42,000 A rms, which supports proper selection of upstream circuit protection. The assembly has a mass of 15.6 kg and uses recommended M10 mounting screws tightened to 51 Nm. It complies with design series 1 and communicates with the control system through SERCOS. The mechanical envelope permits direct attachment to suitable gearboxes or machine plates without adapter brackets.