Product Description:

The CSH02.5B-ET-EC-NN-L3-DA-NN-NW is a motion and I/O controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It is installed in multi-axis drive cabinets to coordinate speed, position, and torque loops between drives, feedback devices, and upper-level PLCs. By integrating real-time fieldbus routing with local analog and resolver interfaces, the unit provides centralized command processing for automated machinery such as pick-and-place gantries, packaging stations, and material handling lines.

The control section tolerates an input swing of ±30 V, which helps protect internal converters from field wiring fluctuations. Each differential analog input is digitized at a 14-bit resolution and maintains a bandwidth of 1.3 kHz, so high-frequency setpoints from tension or pressure loops are not attenuated. Input channels accept signals over a ±10 V range, while the corresponding outputs reproduce references across the same span with steps of 24 mV/incr. Those outputs are intended to drive actuators that present a load of 2 kΩ and a shunt capacitance no greater than 100 nF, which helps maintain stable slew rates. Multi-protocol telegrams are exchanged through the built-in Multi-Ethernet interface, which supports synchronous data cycles alongside standard TCP/IP traffic. A digital and analog I/O extension slot allows direct wiring of limit switches or process sensors without expanding the network.

The resolver port supports cable runs up to 75 m and excites the transducer with 11 Vpp; the internal decoder uses a transfer ratio of 0.5 to calculate shaft position. Safe Torque Off can be invoked by an external circuit, and the hardware executes the command through the certified STO channel to cut drive power within the required safety window. The unit ships without a control panel, and application-specific software must be installed before it is connected to the network.