Product Description:

The CSH01.3C-ET-ENS-NNN-CCD-L2-S-NN-FW is a compact control section from Bosch Rexroth Indramat's CSH Advanced Controllers series. Installed on a compatible drive, it executes motion sequences and manages decentralized I/O. It also links higher-level PLC commands with individual servo axes, making it suitable for automated assembly lines and material-handling stations. Its control functions are intended for coordinated machine motion where axis response and I/O handling must remain closely organized.

The unit draws only 8.5 W at base load, so cabinet thermal impact is minimal. For networked applications, it offers a Multi-Ethernet interface that can switch between EtherNet/IP, PROFINET, or EtherCAT, while internal drive-to-drive coordination is handled by a SERCOS III Master channel. Feedback cabling connects through a D-Sub 15 Female socket, and the onboard evaluation accepts incremental or absolute signals under the standard encoder profile. The encoder supply can deliver 500 mA for high-resolution sensors, and an RS232 port is available for service diagnostics. The controller also provides two analog outputs for speed or torque reference signals, and it can capture marker inputs with pulse widths of up to 100 ms for position-latch tasks.

The dedicated encoder rail is energized at 11.6 V, which helps keep signal levels stable over long cable runs. An initial inrush of 4 A must be considered when sizing control-circuit fuses, and PWM command words reach a maximum switching frequency of 16 kHz for precision current loops on fast servo drives. Functional safety is integrated through the Safe Torque Off channel; its logic accepts a 24 V / 3 mA control input and returns a 24 V / 1 A acknowledgment output to confirm axis de-energization. The safety channel provides a dedicated method for removing torque while still allowing status confirmation to the control system.