Product Description:

The CSH01.1C-S3-EN2-NNN-NNN-NN-S-XP-FW is an advanced control section manufactured by Bosch Rexroth Indramat and assigned to the CSH Advanced Controllers series. Installed in a Rexroth drive rack, it coordinates axis commands, diagnostic signaling, and field networking for servo-based production machinery. By combining motion command generation with integrated interface hardware, the module provides the deterministic timing required for synchronized positioning and speed regulation across multiple drives.

The control section draws a base load of 7.5 W, minimizing cabinet heat while maintaining its processor and communication circuits. A single differential analog channel is available and is rated at 5 VDC, 1 mA for reference output to legacy actuators or meters. On the network side, the main drive bus is accessed through an RJ-45 (8-pin) connector that follows the IEEE 802.3 standard, allowing deterministic real-time Ethernet traffic. Motion setpoints and feedback are exchanged over SERCOS III for high-speed cyclic communication between system components. During startup, the supply sees an inrush of 4 A, so input fusing must tolerate that short surge. A serial service port supports RS-232 links up to 115 kBaud across cable runs as long as 15 m for service communication.

Encoder processing is handled through an EnDat channel that sources up to 350 mA at 5 V to the transducer, decodes the EnDat 2.1 protocol, and accepts sinusoidal feedback at 1 Vpp with a 35 ohm termination and 5 V TTL marker tracks. A software-selectable pulse stretcher permits input widths of up to 100 ms for homing. The board also carries a Form-C relay whose contacts are rated at 24 VDC, 1 A for ready or fault signaling to external safety relays. Because the unit does not include dedicated safety technology, machine-side STO or safe motion functions must be implemented in external devices.