Product Description:

The CSH02.1B-CC-EC-CN-S4-EM-NN-FW is an advanced motion controller manufactured by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in control cabinets, it issues real-time commands to servo drives and collects feedback from encoders and sensors, forming the core of distributed automation cells. The device houses safety-related logic so machine builders can meet functional safety targets without separate modules, while its fieldbus channels handle both cyclic setpoints and diagnostic data for coordinated multi-axis operation.

Operating from a 24 V DC supply, the controller’s electronics consume a baseline of 17 W, allowing compact power supplies to support the unit. At start-up, the inrush pulse is limited to 1 ms, reducing stress on upstream converters. A dedicated 6 W encoder power budget feeds position transducers, and the EC section offers a 400 kHz sine cutoff frequency plus a 500 mA dual-rail supply for external evaluation circuits. Fast parameterization is provided through the 100Base-TX engineering port. For machine networks, a D-Sub 9-pin connector links the integrated CANopen interface, which uses a 124-ohm bus terminator and supports up to 127 nodes on one cable segment without repeaters.

For deterministic drive coordination, the primary fieldbus acts as a Sercos III master that streams setpoint packets while returning status in the same cycle. Inside the EC measurement chain, a 12-bit analog-to-digital converter captures high-speed analog signals for motion loops. The EM section supports synchronous serial encoders, delivering clock bursts at 1 MHz with a source current of 20 mA, and its cabling can extend to 40 m when shielded. When functional safety is enabled, additional logic draws only 2.5 W, so thermal loading remains low even in sealed panels.