Product Description:

The CSH01.1C-S3-EN1-EN2-NNN-S1-S-NN-FW is a single-axis motion and I/O controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It serves as the primary interface between higher-level PLCs and IndraDrive power stages, executing position, velocity, and diagnostic routines over a real-time Sercos III network. By combining drive control, sensor evaluation, and safety signaling in one slot module, the unit reduces wiring complexity and keeps cabinet layouts compact in packaging lines, handling gantries, and general factory automation. This arrangement also allows axis commands and machine I/O to be coordinated from one control point instead of requiring separate interface modules.

At startup, the controller manages inrush behavior and supervises the pre-charge interval. A base inrush current of 4 A reduces stress on upstream fusing when the bus capacitors charge, and a base maximum pulse width of 100 ms sets the longest permitted activation of the pre-charge path. Internal electronics require only 7.5 W, which helps keep heat dissipation low in densely packed control cabinets during continuous operation. The digital outputs can source up to 500 mA, which is sufficient for opto-isolators or small contactors. When an En1 feedback option is installed, the resolver windings receive an excitation voltage of 18.2 Vpp at 4 kHz, supporting accurate angle tracking across the motor speed range.

The secondary encoder interface uses 5.0 V logic and supports a continuous 350 mA load, leaving reserve capacity for the controller’s output group. Final machine-ready signaling is handled through a ready relay that can switch up to 1 A at 24 V DC, allowing direct interlock with drive contactors or safety relays. Network traffic passes through a Sercos III port with a RJ-45, 8-pin connector, providing deterministic communication while allowing standard industrial Ethernet cabling throughout the installation. This layout supports straightforward integration of feedback, readiness, and network connections without adding a separate communication interface.