Product Description:

The CSH01.1C-S3-EN1-NNN-MD2-L1-S-NN-FW control section is produced by Bosch Rexroth Indramat as part of the CSH Advanced Controllers series. Installed inside an IndraDrive amplifier, this module supplies the closed-loop logic that supervises motor axes, exchanges setpoints with the machine PLC, and interfaces directly to position encoders. Within automated assembly lines, it translates high-level motion commands into synchronized drive-level signals, enabling coordinated speed, torque, and position control for multi-axis machinery.

A nominal input of 24 VDC powers the on-board processors and I/O without requiring separate high-voltage insulation, and the electronics draw only 7.5 W, which limits cabinet heat dissipation measures. At power-up, the board momentarily demands a typical inrush of 4 A for no longer than 100 ms; this short pulse must be considered when sizing power-supply fuses. Axis coordination is handled over the deterministic real-time network SERCOS III, allowing the controller to exchange cyclic data with drives at microsecond rates. Two gigabit ports are provided, routed to standard RJ-45 Ethernet sockets, so the module can be daisy-chained within a drive ring without external switches.

Encoder feedback enters through the EN1 socket, a D-Sub 15 female connector that accepts incremental, SinCos, or SSI transducers when paired with the corresponding interface card. For resolver devices, the excitation carrier is generated internally at 4 kHz and an amplitude of 18.2 Vpp, eliminating the need for an external oscillator. The dual-port SERCOS interface counts 2 physical channels, permitting line or ring topologies while maintaining telegram redundancy. This arrangement supports fast startup, deterministic bus timing, and flexible encoder compatibility without additional gateway hardware.