Product Description:

Bosch Rexroth Indramat manufactures the CSH01.1C-ET-ENS-EN1-NNN-L2-S-XP-FW control section within the CSH Advanced Controllers series. The unit is inserted into a modular drive stack where it executes motion commands, supervises feedback interfaces, and exchanges status data with higher-level PLCs. Its role in industrial automation is to translate network instructions into precisely timed PWM signals, so servo axes follow programmed torque, speed, and position profiles under varying load conditions during real-time cycles. The control section supports deterministic control loops needed for synchronous multi-axis processes.

The module provides five local digital and analog I/O resources. It has 1 analog input that accepts ±10 V reference values for follower or trim tasks, and it also has 2 analog outputs for sending actual-value information to external meters or PLC channels. Internal logic is supplied through only 7.5 W of control power, so heat dissipation remains low even in sealed cabinets. During power-up, the capacitors draw a 4 A inrush current that the supply circuit must accommodate. Network traffic is carried through the Multi-Ethernet interface, allowing selection of EtherNet/IP, PROFINET, or EtherCAT topologies. Each fast input can recognize pulses up to 100 ms in duration.

The safety channel delivers Safe Torque Off, enabling immediate power isolation of the drive stage without relying on contactors. Encoder Interface 1 performs standard incremental evaluation, whereas the second channel supports resolver and HSF formats. Within that path, the resolver carrier operates at 4 kHz and is driven by an excitation of 18.2 Vpp. For differential sensor signals, an input impedance of 120 ohm provides proper line termination. The ENS supply line provides 11.6 V at up to 500 mA, allowing auxiliary encoders to be powered without external regulators.