Product Description:

The CSH01.1C-SE-EN1-ENS-MEM-S1-S-NN-FW is a single-axis control section manufactured by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in IndraDrive platforms, it handles motion computation, analog interfacing, and safety exchange between the drive and higher-level PLCs. The board’s purpose in industrial automation is to coordinate precise current loops, relay hardwired safety signals, and forward real-time Sercos commands so that connected servo drives follow position, velocity, or torque references.

Its electrical performance includes the analog interface, logic power demand, control cycle time, and switching frequency. The differential analog inputs tolerate signals within ±10 V, allowing direct connection of potentiometers, sensors, or external controllers without additional scaling. Command signals are returned through an analog output that provides 5 V / 1 mA, suitable for reference feedback to supervisory electronics. The logic circuitry draws only 7.5 W from the internal bus, minimizing heat inside multi-axis cabinets. Torque commands are refreshed every 125 µs; this current control cycle keeps the drive responsive to load changes. Gate signals for the integrated power stage can be modulated up to 8 kHz, allowing a balance between acoustic behavior and switching losses while staying within the controller’s limit.

To complement those fast control loops, the MEM interface streams encoder data at 1 MHz over cables as long as 40 m, keeping position feedback coherent with the internal cycles. Network update time can be reduced to 1000 µs on the Sercos ring, so command and feedback packets remain deterministic at high axis counts. During power-up, the module briefly draws 4 A for 100 ms before settling to its steady demand, so input fusing must accommodate that pulse. Machine-integrated safety contacts are routed through a relay rated at 24 V DC / 1 A, giving a hardwired path that disconnects actuators if the logic detects a fault, while the ENS channels supply 24 V at 500 mA for sensor circuits.