Product Description:

The CSB01.1N-PB-ENS-NNN-L1-S-NN-FW is a plug-in control section manufactured by Bosch Rexroth Indramat for the CSB Drive Controllers series. Housed in the central slot of a modular inverter, the board supplies the signal processing that links power electronics to plant-wide control networks. Its task in industrial automation is to compute current commands, process feedback, and exchange diagnostic data so that servo or induction axes follow programmed motion profiles with consistent accuracy.

Cycle timing inside the board is governed by a 125 µs current-control loop, giving the drive a fine update granularity for torque and flux regulation. For system I/O, it provides 8 digital inputs and 3 digital outputs. High-speed communication is carried on PROFIBUS-DP, and service access is available through an RS-232 port operating up to 115 kbaud. The encoder interface can track incremental or absolute signals up to 500 kHz, so high-resolution feedback is accepted without lost counts. When the unit powers up, an inrush limiter restricts current to 5 A, and the electronics draw only 16 W during steady operation.

The position channel relies on Standard Encoder Evaluation logic that supports IndraDyn S, HIPERFACE, EnDat 2.1, 1 Vpp, and 5 V-TTL signals. The board does not need an external power unit for any of these transducers because it supplies up to 500 mA at 11.6 VDC directly on the connector. TTL reference inputs can reach frequencies of 400 kHz, and pulses at that speed are still interpreted accurately by the onboard logic. During energization, the charging network holds the bus for a maximum of 40 ms before full conduction, which helps prevent nuisance trips on upstream breakers. A built-in starting lockout disables drive-enable signals until predefined checks pass, and a single N/O relay output is used for ready indication.