Product Description:

The CSH01.1C-CO-ENS-NNN-MD2-S2-S-NN-FW control section is produced by Bosch Rexroth Indramat as a member of the CSH Advanced Controllers series. It installs inside IndraDrive power units to execute axis control, fieldbus communication, and signal conditioning tasks for servo drives and I/O stations. Within an automation cell the module coordinates motion profiles, forwards status data to higher-level PLCs, and supplies analog or digital references to the connected drives.

At the internal electronics level the board needs a base power reserve of 7.5 W, so cabinet supplies must guarantee that figure even while the axes are idle. Its analog output stage delivers a stable 5 V reference that can be used for speed or torque setpoints. Sixteen digital input channels accept 24 V signals for limit switches or sensor flags, while sixteen digital outputs can each source up to 0.5 A to actuate relays or indicator lamps. A fixed bus terminator of 124 Ω is already wired on the card to match the characteristic impedance of the SERCOS communication line. During power-up the capacitors draw an inrush of 4 A for approximately 100 ms, so upstream circuit breakers must tolerate that short pulse without tripping.

The integrated fieldbus section supports CANopen networks with up to 127 nodes and DeviceNet segments limited to 64 nodes, allowing the controller to fit into expansive machine topologies without additional gateways. When SSI feedback is used, differential lines can run as far as 40 m at 1 MHz, giving flexibility for remote encoders on long axes. Those encoders receive a regulated supply of 11.6 V at up to 500 mA, while an additional 6 W budget is reserved for the interface logic. Separate 1 W allowances are allocated to the fieldbus and SSI I/O add-on modules, keeping the total heat dissipation predictable across mixed configurations.