Product Description:

The CSH01.1C-S3-ENS-EN1-EN2-NN-S-NN-FW is a modular drive controller section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in a Rexroth drive rack, this unit supplies axis-level processing, feedback handling, and fieldbus connectivity so that servo drives can exchange precision motion data with higher-level PLCs and plant networks. It also serves as the interface between feedback devices, command channels, and the connected power section for coordinated motion in automated equipment.

Its two analog input channels present an input impedance of 160 kΩ, a high value that minimizes sensor loading while accepting differential signals. Conversion accuracy is set by an input resolution of 1.23 mV/inc, while the paired analog outputs update in discrete steps of 19.5 mV/inc for proportional valve or drive reference commands. Eight transistor digital outputs can each source up to 500 mA, allowing direct actuation of relays or signal lamps without external amplifiers. Motion feedback on the EN1 port is energized by a resolver carrier of 18.2 Vpp, and the same connector also receives a Hall/SSI supply of 8.0 V for multiturn encoders. All cyclic command data moves across the SERCOS III optical ring, which maintains deterministic timing between the controller section and the power inverters.

The secondary EN2 interface processes differential encoder tracks at up to 1000 kHz. Its signal path is terminated internally with 120 Ω to preserve edge fidelity, and the interface electronics draw 350 mA from the backplane. Sensor supply on the ENS connector delivers 11.6 V at a continuous 500 mA for external transducers. During power-up, the controller section can pull as much as 4 A, a value used when sizing supply protection and cabling. It accepts command pulses as wide as 100 ms on its latch inputs, and its form-C relay contact is rated for 1 A switching duty.