Product Description:

The motion-logic controller CSH02.1B-CC-EC-PB-L3-EC-NN-FW belongs to the CSH Advanced Controllers series from Bosch Rexroth Indramat. Installed in modular drive cabinets, this unit coordinates servo axes, processes analog and digital I/O, and passes deterministic positioning commands to downstream inverters. By combining high-resolution analog channels with integrated safety circuits, it serves as the central command layer in packaging lines, pick-and-place gantries, and other multi-axis assemblies that demand fast reaction times and safety-related shutdown functions.

The controller samples analog setpoint currents with 11-bit resolution and reads voltage feedback with 13-bit resolution, while its analog output channel steps in increments of 24 mV per increment. These values allow fine torque and velocity adjustment at the drive. A base power draw of 17 W supports the CPU, memory, and internal buses, so cabinet heat dissipation can be estimated easily. The encoder supply delivers up to 500 mA, which is enough for multi-turn absolute encoders with Hall sensors. It also uses a multi-encoder interface on slot 4 that accepts EnDat, SSI, or resolver feedback without external converters, while a repeater pin for the PROFIBUS channel sources 75 mA to downstream segments and the relay contacts can switch control voltages up to 30 V for field actuators.

Real-time drive communication is handled by the SERCOS III master port, keeping cycle times low even when the resolver cable extends 75 m. Position tracking remains stable because the resolver reference signal is generated at 8 kHz. Safe Torque Off is implemented as STO (Safe Torque Off), and it becomes active when the safety input exceeds 11 V. The module then sources up to 350 mA on its safety output to feed contactors or enable chains, while additional diagnostics propagate over the multi-encoder interface so the CPU can supervise broken wires.