Product Description:

The CSH01.1C-S3-ENS-EN2-NNN-NN-S-XP-FW is a single-axis motion controller from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. It serves as the command section for servo drives rather than the power stage itself. It generates set-points, evaluates feedback, and forwards fieldbus data so that connected drives can regulate speed, torque, or position in automated machinery with closed-loop accuracy. Because it handles command processing and feedback evaluation in one unit, the controller forms the logic layer between the higher-level control system and the drive power section.

An analog interface is provided with an input resistance of 160 kΩ, allowing precise voltage measurement without placing a heavy load on the upstream signal source. That channel accepts a differential range of ±10 V, enabling bipolar reference values for bidirectional motion. Outbound analog feedback is available as a 1 mA current signal and a fixed reference of 5 V, supporting simple drive monitoring or recorder inputs. Network exchange occurs over SERCOS III, which provides deterministic real-time communication between the controller, inverters, and higher-level PLCs. The module also limits inrush to 4 A with a 100 ms pulse, and a relay contact rated 24 V DC at 1 A is included for auxiliary signaling.

Digital outputs are rated at 24 V, 0.5 A, so they can switch indicator lamps or interlock coils in the control circuit. Encoder channel 1 supports input frequencies up to 500 kHz and uses an internal 11.6 V supply rail that can deliver 500 mA to high-resolution feedback devices. Channel 2 offers a separate supply of 5.0 V at 350 mA with a minimum load impedance of 35 ohms. Channel 1 also accepts TTL edge rates up to 400 kHz for incremental sensors. Separate encoder supplies allow different feedback devices to be connected without forcing both channels to share the same voltage rail.