Product Description:

The CSH01.1C-CO-EN2-NNN-NNN-S1-S-NN-FW control unit is manufactured by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. Installed in modular drive systems, this controller handles axis processing, encoder evaluation, and network exchange so that servo inverters can follow precise position or torque commands in automated machinery and production lines. It is suited to applications that need coordinated motion control and continuous feedback handling within a compact drive platform. The control section manages command processing while the associated power stage supplies the motor current. That arrangement allows the drive to react to external commands and incoming feedback without requiring a separate stand-alone motion controller for each axis.

The module’s internal electronics draw a base power of 7.5 W, a figure that guides cabinet power-supply sizing. Field wiring for the CAN interface lands on a Spring terminal, 5-pin block, and those terminals are tightened to 0.5 Nm to maintain reliable contact under vibration. Communication with higher-level controllers is carried out through the CANopen/DeviceNet protocol set on an add-on communication board. The En2 encoder port sources up to 350 mA at 5.0 V, letting it energize modern single-turn and multi-turn sensors while staying within the board’s thermal limits. For signal integrity, the same port expects feedback receivers of no less than 35 Ω, which helps maintain correct differential loading over long encoder cables.

An auxiliary service channel is provided through a MiniDin, 8-pin RS-232 connector, which can be run up to 15 m for setup access or diagnostic tools without repeaters. Data moves on that link at rates as high as 115 kBaud, allowing parameter uploads and trace capture during live operation. The S1 safety header uses a D-Sub 9-pin format and works with the Safety Technology I/O option. Its circuitry needs 1 W, while the dedicated encoder evaluation section consumes 6 W when operating EnDat 2.1, 1 Vpp, or 5 V TTL feedback types. The communication, service, safety, and encoder circuits are integrated into the same control unit, reducing the need for separate interface modules. This is useful where service access and encoder processing must share limited cabinet space.