Product Description:

The Bosch Rexroth Indramat CSB02.5B-ET-EC-EP-NN-DA-NN-NW controller belongs to the CSB Drive Controllers series and occupies the control section slot within a modular drive stack. In an automation cell, it receives feedback from servo encoders, performs position loops, and forwards gate commands to the downstream power module so that connected motors follow commanded trajectories. By combining fast local processing with standardized networking, the unit coordinates axis motion for packaging machines, material handling lines, and other precision equipment.

Control electronics are energized from a dedicated 24 V DC supply, which isolates the logic from mains disturbances. The integrated HMU05 power section references this bus while the controller manages analog feedback with 14-bit input resolution, allowing fine position interpolation. Analog output channels refresh every 250 µs, so drive commands track rapidly changing setpoints. For single-turn or multi-turn encoders, the board provides 12 V and 5 V rails; each rail can source 500 mA, and the total encoder power budget is 6 W. The separate 12 V rail supports resolver interfaces, and the sine input bandwidth is limited by a 400 kHz cutoff to reject noise during high-bandwidth measurement.

Two Ethernet channels are present, and both terminate on an 8-pin RJ-45 connector and operate over the 100Base-TX physical layer, enabling daisy-chain topologies without external switches. This arrangement supports real-time communication across the drive network while keeping cabling straightforward. Resolver excitation is generated at 8 kHz, aligning with the digital filter structure used in the position loop. For incremental feedback, square-wave counters accept edge rates up to 1000 kHz, permitting direct connection of high-resolution encoders without pulse division.