Product Description:

The CSH01.1C-SE-EN2-NNN-MD2-L2-S-NN-FW is an axis controller built by Bosch Rexroth Indramat for the CSH Advanced Controllers series. It serves as the control section of a modular drive package, coordinating one servo or spindle axis in automated machinery and sending motion commands to the connected power section. By combining fieldbus links, encoder evaluation, and safety logic on one card, the unit helps simplify cabinet layouts for packaging lines, handling stations, and metalworking systems.

The card is intended for a single-axis layout, so its internal regulator and position loop manage only one motor channel. Communication with higher-level PLCs occurs through SERCOS II, a deterministic fiber-optic bus for real-time motion control. Data transfer on this bus runs at 16 MBaud, and update cycles can be as short as 1000 µs, which supports tight velocity and position control. When the servo link is inactive, the base electronics draw just 7.5 W, which helps reduce standby heat dissipation. During power-up, the capacitors charge at an inrush current of 4 A, a value that is useful when sizing fuses and soft-start circuits. Encoder feedback arrives through an EnDat 2.1, 1 Vpp, or 5 V TTL interface, allowing the drive to read absolute or incremental signals without extra hardware. A serial RS232 port supports local setup and diagnostics at up to 115 kBaud across 15 m of cable.

The integrated MD2 option expands local control by offering 16 DI / 16 DO. Each digital output is rated for 24 V at 0.5 A, and the SSI supply can source 0.2 A for external sensors. The En2 encoder line is powered at 5 V to match typical sine-cosine transducers, and relay contacts inside the card can switch up to 24 V at 1 A for auxiliary functions such as brake release. Functional safety is handled through Safe Torque Off, which removes gate pulses to the power section when triggered so motion stops without relying on a mechanical brake.