CSH02.5B-CC-EC-PB-S4-EM-NN-NW

The CSH02.5B-CC-EC-PB-S4-EM-NN-NW is a multi-axis motion controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It coordinates drive modules, fieldbus traffic, and sensor feedback so that servo axes follow programmed trajectories in automated machinery, packaging lines, or assembly cells. The unit provides differential analog command channels, an encoder supply rail, and an integrated Profibus interface, allowing it to bridge higher-level PLC instructions to the power stage of each motor.

Each analog output channel can drive capacitive loads up to 750 nF, ensuring signal stability when long shielded cables are used. To prevent excessive loading, the connected input stage must present at least 2 kΩ of resistance, limiting current draw and preserving the controller’s resolution. Conversion from digital set-points to voltage levels finishes within 250 µs, so velocity and position loops react quickly to program updates. The internal DAC produces increments of 6 mV/incr, giving fine command granularity across the ±10 V span. Under positive excursions the output peaks at 10 V, allowing full-scale reference for most industrial servo drives.

For reverse commands the channel reaches -10 V, completing a symmetric range required by bidirectional axes. The encoder back-plane can furnish up to 12 W of power, and the 12 V rail is regulated so that no terminal exceeds 12.3 V, protecting precision feedback devices from over-voltage. Network integration is handled through the Profibus connector; its differential pair presents 350 Ω of output resistance to match the bus impedance, while a repeater pin can supply 75 mA at 5 V for external line extenders. These hardware limits help the controller maintain clean analog signals, reliable encoder excitation, and deterministic bus communication when installed in high-speed motion platforms.