Product Description:

The CSH01.1C-S3-ENS-NNN-MA1-S2-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. It mounts on an IndraDrive power stage and governs servo and spindle axes by executing motion profiles, processing encoder feedback, and supervising drive-integrated safety channels. In automated packaging, printing, or handling stations, the board synchronizes movements, verifies safety inputs, and exchanges real-time data with higher-level PLCs so that every axis follows commanded trajectories while meeting category-based stop requirements.

The control electronics draw only 7.5 W, which reduces cabinet heat and allows dense multi-axis layouts. Command and status information travel over the optical ring of SERCOS III. This deterministic bus supplies phase-accurate setpoint updates and diagnostic telegrams at cycle times down to 250 µs. An auxiliary copper network port supports 100Base-TX so PCs or plant networks can access parameters without breaking the real-time loop. When the drive is energized, the section sees an inrush of 4 A, so the 24 V control supply and fusing must accommodate that brief peak. The MA1 option card presents 2 differential inputs that accept ±10 V process values for torque or position override, and the same module supplies two voltage outputs for analog feedback to external controllers.

Each analog channel is digitized with a resolution of 5 mV/inc across a 12 bit conversion width, giving adequate granularity for fine loop tuning on low-torque servo motors. Machine safety wiring lands on the 9-pin D-Sub, where the first safe input tolerates 24 V / 3 mA signaling from light curtains or emergency stops, and the redundant relay pair can interrupt downstream contactors at up to DC 24 V / 1 A. These ratings allow the controller to handle both logic-level monitoring and power-level disconnection duties without external relays, which helps simplify the safety circuit layout.