Product Description:

The CSH01.1C-ET-ENS-NNN-MD1-L2-S-NN-FW is a motion-control section in the CSH Advanced Controllers series from Bosch Rexroth Indramat. It is installed in IndraDrive systems where it executes positioning, velocity, and safety logic for servo axes and peripheral devices. By combining field-level inputs, high-speed analog channels, and network communications in a single plug-in module, the unit streamlines cabinet layouts and reduces response times in automated machinery.

The two differential analog inputs are tuned for a bandwidth of 1.4 kHz, so the controller can track fast reference signals without distortion. Their input impedance is 160 kOhm, which minimizes loading on external sensors. The conversion granularity is 1.23 mV/inc, supporting fine setpoint resolution for analog command signals. One buffered analog output supplies 5 V / 1 mA for drive test points, and an internal DAC with 8-bit depth generates that voltage in discrete steps. Multi-Ethernet connectivity, including PROFINET, EtherNet/IP, EtherCAT, and SERCOS III, links the section to PLCs, while a separate RS-232 service port supports cable runs up to 15 m at 115 kBaud. The MD1 mezzanine also adds 12 digital inputs, 8 digital outputs, and a relay for interlocking contactors or alarm beacons. Safe Torque Off disables gate firing on demand and removes drive power without mechanical relays.

An output resolution of 19.5 mV/inc recreates analog feedback with a consistent step size when process variables are monitored. The encoder interface provides a stabilized supply of 12 V for SSI, EnDat, or resolver sensor electronics. Control electronics draw from the logic rail at 24 V, and the onboard regulators can deliver up to 1.1 A to external loads such as light curtains or proximity switches. This power budget remains separate from the main drive bus, which helps limit fault propagation. Diagnostic access allows monitoring of digital I/O states, Safe Torque Off status, and RS-232 traffic without additional hardware.