Product Description:

The CSH01.1C-SE-EN1-NNN-NNN-L2-S-K2-FW control section is produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. Installed in IndraDrive power units, it acts as the command layer that processes feedback, runs motion algorithms, and distributes setpoints to attached drives. By combining axis logic, safety monitoring, and high-speed fieldbus links, the module supports coordinated positioning and velocity control in assembly lines, packaging equipment, and material-handling systems. Its role is centered on supervising axis behavior and passing synchronized commands to the connected power stage. This arrangement lets the power unit focus on motor current generation while the control section manages coordination and feedback evaluation.

The controller draws a base operating power of 7.5 W, so cabinet thermal load stays low during idle cycles. Drive and I/O data are exchanged over fiber-optic cables, which help preserve signal quality across electrically noisy machine sections. Command and status words move on the SERCOS II bus, providing deterministic updates for synchronous motion. Discrete inputs switch below 5 V and are recognized as active above 15 V, giving the interface clear noise margins for PLC signals. During startup, the integrated SERCOS module needs only 2 W and tolerates a 100 ms inrush pulse, which reduces demand on the control supply.

The digital output channel can source up to 500 mA, enough to drive contactors or indicator lamps directly. Position feedback is accepted through a resolver or high-speed HSF interface, and the resolver winding is excited with 18.2 Vpp at 4 kHz for precise angle detection. Machine safety is handled by the Safe Torque Off function, which uses a separate DC 24 V supply that is monitored independently of the control electronics. When power is first applied, the section can draw a typical inrush of 4 A, so feeder circuits must be sized for the brief startup demand. The separate safety supply keeps the shutdown path isolated from the standard control power.