Product Description:

The CSH01.1C-SE-ENS-EN1-MEM-S1-S-NN-FW is a single-axis motion and I/O controller released by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It coordinates drive tasks over a fiber-optic SERCOS II ring, allowing the drive and PLC layers to share a synchronized data cycle. In an automation cell, the unit acts as the command source for velocity, torque, and position loops, while consolidating encoder feedback and safety signals into one compact plug-in module.

The analog front end is designed around an input resistance of 160 kΩ, a level that minimizes loading on external transducers connected to the ±10 V channels. Incoming signals are digitized at 1.23 mV/inc, while the complementary analog outputs step in increments of 19.5 mV/inc; together, these resolutions let the drive fine-tune current setpoints without abrupt quantization steps. A base power draw of 7.5 W keeps cabinet thermal budgets low, yet the card can still tolerate an inrush of 4 A during startup when bulk capacitors charge. One axis is processed locally, but additional axes can be coordinated through the deterministic SERCOS interface, which exchanges cyclic data at a fixed phase angle relative to the controller's local clock.

The MEM interface outputs position compare pulses up to 1 MHz, supporting high-speed registration or print-mark tracking. Serial diagnostics over RS-232 are available at rates up to 115 kBaud, which is useful for setup or service tools when the optical bus is unavailable. For real-time field operation, the optical ring reaches a bandwidth of 16 MBaud, allowing fast command refresh even with multiple devices in line. The encoder supply on connector 1 provides a stabilized rail of 8 V to power IndraDyn or MKD feedback heads, while the D-Sub safety connector carries Safety Technology I/O so that STO or SS1 functions can be wired directly into the machine's emergency chain.