Product Description:

The CSH01.1C-NN-ENS-EN2-MA1-L1-S-NN-FW control section is manufactured by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. It plugs into an IndraDrive power stage to form a complete servo drive that handles interpolation, position loops, and axis monitoring. In an automation line, the card translates fieldbus commands into precise current references, reads encoder signals, and manages emergency stop logic, linking PLC instructions with the drive's power electronics. This arrangement lets the module handle command processing, feedback evaluation, and supervisory drive functions within a compact control platform.

During operation, the electronics draw a base power of 7.5 W, so cabinet thermal design can remain modest. At startup, the unit tolerates a peak inrush of 4 A for up to 100 ms, after which consumption returns to nominal. The dedicated L1 enable channel expects a control voltage of 24 V / 3 mA; when this line drops, the controller disengages the power stage in accordance with a Category 0 stop. Two differential analog inputs accept ±10 V references, and two outputs in the same range return velocity or torque feedback. Each analog path is processed through a 12-bit converter so signal resolution remains suitable for typical servo applications.

Position feedback supplies are split between the incremental En2 port and the multiturn Ens port. En2 delivers up to 350 mA at a regulated 5.0 V with an allowable load resistance of 35 Ω, supporting TTL or RS-422 encoders that require low-voltage excitation. For single-cable or sine/cosine devices, the Ens output can source 500 mA at 11.6 V, providing stable reference power for long cable runs and added sensor electronics. The separate encoder ports also allow the drive to support different feedback device types without external interface modules. Separate feedback supplies help maintain encoder signal quality while the controller coordinates analog, digital, and safety functions under changing load conditions.