Product Description:

The CSH01.1C-PL-ENS-NNN-MD2-L2-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. It slots into IndraDrive platforms to coordinate servo axes, read high-speed feedback devices, and route discrete I/O in automated machinery. By combining encoder conditioning, field-level digital signals, and line-side communications on one card, the unit streamlines motion sequencing and diagnostic reporting inside industrial drive cabinets and other compact automation systems.

The ENS encoder channel samples position data with a resolution of 12 bit. This width sets how finely the incoming sine-cosine signal is quantized before the drive computes velocity and position loops. A D-Sub 15 connector carries that feedback, while the analog front end provides 120 Ω input resistance to match typical differential line drivers and reduce signal reflections. Its cutoff bandwidth of 500 kHz supports fast motors equipped with high-pole feedback devices. The MD2 expansion adds 16 digital inputs and an equal number of outputs through a PL logic header so the controller can process prox switches, photoelectric sensors, or interlocks without an external PLC card. For drive-controlled actuators, the L2 safety relay provides a normally open contact rated at 1 A, and its signals leave the board on a D-Sub 9 plug positioned at the module’s front edge.

The encoder supply can source up to 500 mA, allowing it to power resolvers or multiturn absolute transducers directly from the board. A TTL monitor path accepts incremental streams up to 400 kHz so spindle feedback remains valid at maximum speed. Process-level wiring terminates on a D-Sub 37, and the grouped output stages draw a maximum of 1.2 A from the cabinet 24 V bus. When a synchronous serial interface is used, shielded copper runs may extend to 75 m, permitting remote mounting of measuring heads without signal boosters. The MD2 board also uses an RJ12 6-pin socket for SSI devices on the same backplane.