Product Description:

The CSH01.1C-ET-ENS-EN1-EN2-S2-S-NN-FW module is a control section in the CSH Advanced Controllers series from Bosch Rexroth Indramat. It installs inside an IndraDrive power unit and provides closed-loop processing, fieldbus communication, and integrated safety required for coordinated multi-axis motion. This arrangement lets the drive manage motion, feedback, and safety functions from a single control section instead of separate interface modules. By combining encoder evaluation, network interfaces, and safety I/O on one card, the unit streamlines cabinet wiring and supports precise positioning in industrial automation lines, packaging equipment, and general machinery.

The controller’s internal logic consumes only 7.5 W, so minimal panel ventilation is needed. During power-up, an inrush of 4 A must be supplied, so the power source and fuse must accommodate startup demand when several drives share a DC bus. For machine networking, the Ethernet port follows the 100BASE-TX standard and supports deterministic traffic across shielded copper runs up to 100 m. A separate RS-232 maintenance port can be cabled as far as 15 m for a local PC or HMI terminal. The safety circuit terminates on a 9-pin D-Sub, and its inputs accept a 24 VDC logic supply. Pulse signals processed through the STO channel are limited to a maximum width of 100 ms, which helps maintain predictable fault reaction times.

Encoder and sensor supplies are distributed over three dedicated headers. The EN1 interface provides a hall or shaft-feedback supply of 8 VDC with an output capability of 250 mA and includes a resolver carrier at 4 kHz and 18.2 Vpp for absolute position transducers. The EN2 channel offers 5.0 VDC with 350 mA for TTL encoders, while the ENS connector supplies 11.6 VDC and up to 500 mA for auxiliary sensors. All safe inputs share a logic common referenced to a 24 VDC supply, so emergency-stop devices, light curtains, and door switches can be wired directly without external relays.