Product Description:

The CSH01.1C-PB-ENS-ENS-NNN-S2-S-XP-FW control section is produced by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. It is installed in IndraDrive inverter racks to coordinate axis motion, feedback processing, and field communication. Within an automation cell, the unit converts motion commands from a PLC into precise drive-level signals, linking sensors, encoders, and networked devices. It also supports Safe Motion functions so axis behavior can be monitored and limited within the drive platform itself. Because control, feedback, and communication tasks are handled in the same section, the drive can respond quickly to command changes and encoder updates.

Two analog input channels present an impedance of 160 kΩ, which helps prevent excessive loading of connected transducer circuits. Each incoming voltage is digitized at 1.23 mV/inc, while outgoing reference values leave the module with a resolution of 19.5 mV/inc. The analog outputs settle in 10 µs, which supports responsive control behavior in current or velocity applications. Total controller demand is limited to 7.5 W, helping the control section fit within the electrical budget of the inverter rack. Communication over PROFIBUS is supplemented by an RS-232 service port that operates up to 115 kBaud over cable lengths of as much as 15 m, allowing local access without changing the main network connection.

Feedback processing is handled by two standard encoder evaluations, each supplied from a regulated rail at 11.6 V and capable of delivering up to 500 mA in total. Incremental encoders with TTL tracks can be read at frequencies of 400 kHz, reducing the chance of missed pulses on fast-moving axes. During startup, the control section experiences an inrush of 4 A, so upstream protection must tolerate that brief surge without nuisance tripping. The internal safety logic compares encoder positions in real time and can trigger torque shutdown if permitted limits are exceeded. This protective function operates independently of the external fieldbus, so stop behavior remains deterministic even if network communication is interrupted.