Product Description:

The CSH01.1C-SE-ENS-EN2-NNN-S1-S-NN-FW is a compact motion and logic controller from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. It is installed in Rexroth drive stacks to execute position loops, manage field-level I/O, and forward setpoints to power inverters. By coordinating encoder feedback, analog channels, and network data, the unit links servo drives with higher-level PLCs and supports deterministic axis movement in industrial automation cells. Its role is to keep command processing, feedback handling, and machine response organized within a single control platform for synchronized motion tasks.

For real-time performance, the controller communicates with drives over SERCOS II, and the synchronous ring bus streamlines telegram exchange with low latency. Its current-control cycle of 125 µs governs how often torque commands are refreshed, while an internal maximum switching frequency of 8 kHz supports finely stepped PWM patterns in connected inverters. The electronics consume only 7.5 W of base power, which helps keep cabinet heat output low during continuous operation. Single-ended analog input capability is limited to one channel, and two analog outputs are provided for speed or torque references. One normally open relay contact can issue hardware enables to external devices. Through the MiniDIN 8-pin RS232 service port, parameters transfer at up to 115 kBaud, which supports direct setup access and diagnostics.

The digital output stage sources up to 500 mA, enough to drive contactors or optocoupler rails without extra amplifiers. An EN2 extension draws 6 W and adds a second encoder interface that accepts EnDat 2.1, 1 Vpp, or 5 V TTL feedback, while the primary slot already supports IndraDyn, HIPERFACE, or 1 Vpp formats. The S1 safety module requires only 1 W and enables category-oriented shutdown through its Safety Technology I/O terminals. One analog input, two analog outputs, and the single relay work with the fast control cycle to manage axis-ready interlocks and signal exchange between the drive system and surrounding machine controls. This arrangement supports coordinated multi-axis operation while keeping the controller footprint compact inside the cabinet.