Product Description:

The CSH01.1C-SE-ENS-EN2-MEM-NN-S-XP-FW control section is produced by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. It is a plug-in electronics module that coordinates drive axes and peripheral devices in automated machinery. By combining supply regulation, fieldbus communication, and encoder handling within one slot, the unit serves as the processing core for servo drives that require deterministic position, velocity, and diagnostic exchange over real-time networks. It interfaces directly with regulated 24-volt control power and manages Sercos messaging, allowing central PLCs to issue cycle-synchronous commands while the module executes local motion loops.

The controller draws a base demand of 7.5 W from the cabinet rail and is powered through a separate 24 V DC control supply, so internal electronics stay active during main power removal. Command traffic is exchanged via the Sercos II optical interface, providing cyclic setpoint and status data with microsecond timing. At switch-on, the section can pull an inrush of 4 A, and the watchdog circuitry limits any output impulse to a maximum pulse width of 100 ms. The ENS resolver converter digitizes rotor positions with a 12-bit word length, sources 500 mA for sensor excitation, and accepts TTL reference signals up to 400 kHz. The unit has no integrated safety technology, so emergency stop functions must be handled by external safety relays.

The second encoder channel is optimized for linear or rotary feedback that uses EnDat 2.1, 1 Vpp, or 5 V TTL formats. It tolerates a line-to-line load of 35 ohms while still delivering up to 350 mA at the sense point, with a reference supply of 5.0 V to the transducer. The channel dedicated to micro-encoder emulation (MEM) reproduces absolute and incremental signals at frequencies as high as 1 MHz, allowing legacy drives to read the same motion data in parallel. All ENS circuitry is biased from a stable 11.6 V rail to maintain conversion accuracy under dynamic load swings.