Product Description:

The CSH01.1C-S3-ENS-NNN-MA1-L2-S-NN-FW is a drive controller module built by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Used in multi-axis automation, the unit coordinates motion, fieldbus traffic, and safety signals between the supply section and the connected servo drives. Its role inside a servo cabinet is to process real-time commands, translate them into deterministic setpoints, and supervise enable lines so motors follow programmed trajectories within the system's electrical limits.

During power-up, the controller draws an inrush current of 4 A from the 24 V cabinet supply, and that surge is limited to 100 ms, preventing nuisance tripping of upstream fuses. The internal ENS logic is powered by 11.6 V and requires only 500 mA, allowing the emergency-stop circuit to remain energized through a small UPS. The MA1 option card provides two differential input channels and two output channels; each input sees 1 MΩ of resistance for minimal sensor loading, while each output can source 10 mA to analog actuators. Command data and cyclic setpoints are exchanged through the controller's master interface, which supports SERCOS III for 100 µs telegram rates and deterministic synchronization across the drive ring.

For host diagnostics, the RS-232 maintenance port supports cable runs up to 15 m, while the S3 Ethernet stack accepts shielded twisted-pair up to 100 m through its RJ45 8-pin jack. Signal integrity is maintained at 100Base-TX line speed, matching the update rate used on the motion network. The integrated Safe Torque Off circuit draws 3 mA at its 24 V input and can disconnect the drive stage from gate power; its output channel can switch up to 1 A for downstream relays. These communication and safety functions let the module supervise position loops, respond to field commands, and handle functional safety without additional hardware.