Product Description:

The CSH01.1C-S3-EN2-EN2-MA1-S1-S-NN-FW is a control section from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. This plug-in module forms the logic core of IndraDrive power stages, issuing motion commands and collecting feedback for servo axes in automated machinery. By integrating communication, analog I/O, encoder evaluation, and safety circuitry on a single board, it supports compact drive-based control in assembly lines, packaging machines, and material-handling cells.

Axis coordination is performed over SERCOS III, providing deterministic data exchange between the controller and connected drives. Two signal channels are reserved for the local machine process; they appear as 2 analog inputs that accept external speed, torque, or process variables, and as 2 analog outputs that can retransmit drive status to external indicators or recorders. The MA1 service interface is presented on a 15-pin female D-Sub connector for straightforward service access and setup. Position feedback is handled through the versatile EnDat 2.1 / 1 Vpp / 5 V TTL encoder format, and the board includes two En2 ports powered at 5 V to read these sensors while supplying up to 1.05 W per channel. Each En2 channel meets the 24-bit high-resolution demand of modern servo loops.

The encoder lines tolerate a load of 35 ohms and may be routed up to 50 m without sense conductors or 75 m with sense conductors for voltage-drop compensation. Each supply rail can deliver 350 mA to the feedback device, allowing stable operation of multi-turn absolute encoders. Safety Technology I/O on the board provides a 1.6 A shared supply for light curtains and emergency-stop chains, accepts safety inputs at 24 V / 3 mA, drives safety outputs at 24 V / 0.5 A, and energizes an internal relay rated for 24 V DC / 1 A to meet category-appropriate stop requirements.