Product Description:

The CSH01.1C-PB-EN2-EN2-NNN-NN-S-NN-FW control section is manufactured by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. Installed inside IndraDrive power modules, this plug-in card supplies axis control, fieldbus communication, and local I/O processing for servo drives and automation cells. It manages position, velocity, and torque loops while providing PROFIBUS access for higher-level PLCs. By combining encoder evaluation, analog measurement, and digital signaling on one board, the unit simplifies cabinet layouts and reduces wiring in multi-axis systems. This arrangement lets the power section focus on current delivery while the control section handles command processing and feedback evaluation.

Its two universal analog channels accept signals within a range of ±10 V. With an input resistance of 160 kOhm, they place only a light load on connected sensors and help preserve accuracy over long cable runs. Each channel is digitized by an EN2 converter with 12-bit resolution, allowing the control logic to detect changes of roughly 5 mV. The EN2 front end is powered by an internal supply that can deliver up to 350 mA, enough for both encoder interfaces listed as EnDat 2.1, 1 Vpp, or TTL. This arrangement supports direct connection of common feedback devices without a separate interface board. For network integration, the board operates as a PROFIBUS master and reaches a data rate of 12 MBaud, supporting cyclic telegram updates in less than one millisecond.

Base consumption is only 7.5 W, so thermal output remains low and multiple cards can share the same fan tray. Digital outputs on the terminal strip are rated at 24 V at 0.5 A, which is sufficient for directly switching compatible contactors or solenoid pilot valves. The module measures 241 × 103 × 49.5 mm, matching the height of standard IndraDrive control bays and allowing dense stacking in 300 mm-deep cabinets. The compact housing also helps preserve front-to-back clearance for adjacent power modules and terminal wiring. During power-up, the electronics draw an inrush current of 4 A, so the supply and protective devices must tolerate this brief surge.