Product Description:

The CSH01.1C-PB-ENS-NNN-MA1-L1-S-NN-FW is a motion and I/O controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It mounts in Rexroth drive racks and provides fieldbus, encoder, and discrete interfaces that synchronize axes and peripheral devices in automated machines. By combining Profibus communication with local analog, digital, and encoder resources, the unit coordinates drive functions, captures process signals, and issues deterministic commands in industrial automation cells.

The MA1 I/O option delivers 2 analog input channels, and each channel presents 1000 kOhm input impedance so high-resistance sensors do not load their source circuits. It also provides 2 analog output channels, allowing drive setpoints or transducer simulations to be generated directly from the card. The digital input block tolerates up to 30 V maximum input voltage and recognizes a logic high at a 15 V threshold, while dropping to an off state below 5 V. These limits allow compatible proximity switches and photo sensors to be connected without additional conditioning hardware.

The output side supports machine coils and solenoids through 500 mA source capability per output and a high-side switch topology that simplifies wiring of positive common rails. Each channel can absorb 400 mJ of inductive energy, which removes the need for separate flyback diodes on small pneumatic valves. Position feedback devices are powered by a 12 VDC encoder supply with 500 mA available, so incremental or absolute encoders can share a single feed. The integrated Profibus repeater uses 5 VDC and reserves a 75 mA repeater budget, which helps maintain signal quality across long trunk lines. A 24 VDC, 3 mA starting-lockout input enables safety interlocks to inhibit drive activation during service.