Product Description:

The CSH01.1C-PL-ENS-EN2-MD2-NN-S-NN-FW is a motion and I/O controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It occupies a slot on IndraDrive modular platforms where it supervises axis positioning, collects machine status, and exchanges real-time signals with higher-level PLCs. By combining encoder evaluation, discrete I/O handling, and local program execution on one board, the unit reduces component count in distributed automation cabinets.

The controller is powered from a regulated control bus at 24 V DC, and its internal electronics draw only 7.5 W, so heat dissipation inside the drive rack remains low. Field devices connect through a Parallel Interface that carries clocked data as well as 16 digital inputs and 16 digital outputs assigned to the MD2 module; these lines are divided into two input groups and four output groups to simplify wiring of safety-related circuits. The same count of parallel inputs and outputs is available on a header for cabinet-front test pins. A single-line display on the control panel shows axis state or error codes without an external HMI. SSI encoder evaluation is present, allowing the board to read absolute position feedback from synchronous servomotors, while a typical inrush current limiter protects supply rails during power-up.

At startup, the supply can momentarily reach 4 A, so fusing must tolerate this inrush without nuisance trips. For incremental feedback, the En2 port offers a buffered supply of 5 V DC that can source up to 350 mA into loads not lower than 35 Ω, preventing excessive line drop on long encoder cables. The Ens channel supports encoders that require 12 V, giving a choice between low-voltage TTL and higher-voltage HTL signal levels without an external converter. This arrangement allows the board to support mixed sensor topologies while maintaining deterministic update cycles in multi-axis assemblies.