Product Description:

The CSH01.1C-SE-ENS-EN1-MEM-L1-S-NN-FW is a single-axis controller from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. It is installed in modular drive systems where it executes position, velocity, and current loops for servomotors, thereby coordinating motion sequences with higher-level PLCs and field devices. The unit serves as the interface between feedback encoders, fieldbus networks, and power inverters so that automated cells can synchronize actuators with deterministic timing.

Real-time data exchange with the drive is handled over SERCOS II, allowing cyclic set-point updates and diagnostic feedback. The analog output stage refreshes every 10 µs, so a new voltage command can be generated at that interval. Each analog channel can drive loads down to 5 kΩ, helping maintain signal integrity when connected to standard drive inputs. Output granularity is set by a resolution of 19.5 mV/inc across an 8-bit word, giving 256 discrete steps for fine speed trimming. Digital outputs share a group current ceiling of 1000 mA, while any single channel must remain below 500 mA to protect the onboard transistors from excessive thermal stress.

The emulation port is galvanically isolated, transmits edge signals up to 1 MHz, and supports cable runs as long as 40 m, which is adequate for following drives that need high-frequency master pulses. Encoder supply rails provide 12 V to the primary feedback device and 8 V to a secondary sensor, supporting mixed-voltage installations without external converters. An inrush draw of 4 A must be considered when sizing supply fusing and pre-charge circuits. For service communication, the RS-232 port spans 15 m at 115 kBaud, allowing local access to parameters. A starting lockout safety function inhibits unintended motion until all enable signals are satisfied.