Product Description:

The CSH01.1C-SE-EN1-EN2-NNN-NN-S-NN-FW is a single-axis control section produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. Installed on compatible drive power units, the module processes position, velocity, and torque commands to coordinate servo motors over Sercos or serial links. By providing high-speed signal conditioning, it allows machine builders to integrate precise motion sequences into packaging, printing, and handling equipment without adding standalone PLC hardware.

Its analog front end accepts differential ±10 V signals with a bandwidth of 1.4 kHz, allowing real-time capture of encoder-derived torque commands. A high input resistance of 160 kΩ minimizes loading on upstream transducers, while the converter yields a step size of 1.23 mV/inc for fine set-point definition. On the output side, the converter updates with a granularity of 19.5 mV/inc, supporting proportional valve or drive reference generation. Closed-loop torque regulation is recalculated every 125 µs; this short current-control cycle pairs with the minimum Sercos telegram interval of 1000 µs to synchronize axis movement with the machine network. When a maintenance terminal is used, the RS232 port communicates up to 115 kBaud for parameter adjustment, and base logic draws 7.5 W under standby conditions.

Each encoder interface has its own power rail: En1 provides 8 V with up to 250 mA for Hiperface sensors, while En2 delivers 5.0 V at 350 mA for TTL or EnDat feedback. The ±10 V analog driver sources up to 1 mA into loads as low as 5 kΩ, ensuring reference stability even when multiple receivers are connected. These electrical limits apply to the encoder supply outputs and the analog reference stage during normal operation.