Product Description:

The CSH01.1C-S3-EN1-NNN-MA1-L2-S-NN-FW control section is produced by Bosch Rexroth Indramat as part of the CSH Advanced Controllers series. It is intended for mounting in IndraDrive drive stacks, where it coordinates motion, fieldbus traffic, and safety for one axis of an industrial machine. By combining communication, encoder processing, and local I/O, the unit simplifies integration of servo hardware into automated production lines.

This controller supports a single-axis configuration, so all internal resources focus on one drive channel. During power-up, the electronics draw a base inrush current of 4 A, and once stabilized they consume 7.5 W, a load that helps with cabinet thermal planning. Command exchange with higher-level PLCs occurs through SERCOS III, giving deterministic cycle times on standard Ethernet wiring. Encoder input 1 accepts resolver and HSF formats; the resolver winding is energized at AC 18.2 Vpp and sensed at 4 kHz, while HSF signals are digitized through an MA1 front end. Two differential analog inputs and two analog outputs form the analog I/O extension, letting the drive capture process values or control external actuators. The integrated safety layer provides Safe Torque Off, which removes gate signals to the power stage without affecting upstream controls, and the MA1 feedback uses a front-mounted D-Sub 15 female connector.

The output pulses can extend to a maximum base width of 100 ms, allowing drive enables that comply with motor magnetization delays. The HSF channel supplies DC 8 V to its sensors, and its captured position word is converted with 12-bit resolution before being forwarded to the motion core. Real-time telegrams use a 100Base-TX physical layer and pass through a dedicated RJ-45, 8-pin port, so standard CAT-5e cables can be used. A D-Sub 9 female safety connector hosts the redundant STO wiring and helps prevent confusion with the 15-pin feedback plug.