Product Description:

The CSH01.1C-SE-EN1-NNN-MEM-L1-S-NN-FW is a modular control section released by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed inside a Rexroth drive stack, it handles motion commands, feedback processing, and fieldbus communication so that connected servo axes execute coordinated profiles. The board supplies the required interface set, including analog channels, digital inputs, and high-speed encoder links, allowing machine builders to embed positioning, speed, and torque control functions directly within compact automation cabinets on assembly lines or packaging machines.

Its analog front end is designed with an input resistance of 160 kΩ, a value high enough to avoid loading sensitive transducer circuits. For command generation, the section provides a nominal analog output of 5 V / 1 mA, suitable for most drive reference inputs, and each step is quantized at 19.5 mV/inc, letting the application fine-tune velocity or torque setpoints. Internal electronics dissipate only 7.5 W of base circuit power, so cabinet thermal loading remains minimal. When the unit is energized, the capacitors charge with an inrush of 4 A. Proper fusing and line impedance must accommodate this short surge. Digital inputs switch on above 15 V, while the EN1 logic rail is maintained at 8 V DC for position feedback modules.

The current spike lasts just 100 ms, after which the controller’s relay contacts can safely carry loads up to 24 V / 1 A for auxiliary signaling. Resolver channels drive the rotor winding with an excitation of 18.2 Vpp AC, enabling accurate angle calculation even over extended harnesses. The permissible MEM encoder cable reaches 40 m without degrading its 1 MHz data stream. Discrete outputs are rated 500 mA each, and the L1 input path accepts 24 V at 3 mA for acknowledge functions. A secure SERCOS connection is maintained by tightening the fiber nut to 0.6 Nm during installation.