Product Description:

The CSB01.1C-PL-ENS-ENS-NN-S-NN-FW is a single-axis control section developed by Bosch Rexroth Indramat for the CSB Drive Controllers series. As the plug-in intelligence for a power section, this part processes command data, evaluates encoder feedback, and communicates with higher-level PLCs, thereby coordinating precise speed, torque, and position loops in automated machinery and material-handling cells. Its role is to convert external digital or analog references into real-time drive signals that keep servo or induction motors synchronized with application requirements.

A data-acquisition backbone built around a 12-bit analog-to-digital converter allows the unit to sample reference voltages with adequate resolution for closed-loop regulation. The internal encoder circuits can accept feedback streams up to 400 kHz, letting high-resolution devices report position without aliasing at elevated motor speeds. Logic electronics are supplied from a dedicated DC 24 V rail that is brought in separately from the power stage, isolating control tasks from bus variations. Two identical, electrically isolated feedback channels are provided, and each follows the 2 × ENS interface format, so dual-encoder applications such as master-follower axes are supported. All process signals exchanged with a parallel control system pass through a 37-pin D-Sub PL connector that carries sixteen input lines, sixteen output lines, and the required handshake and ground conductors.

The parallel port offers 16 digital inputs for sensor states and command bits, along with 16 digital outputs for actuator or status signaling, enabling deterministic exchange with PLC scan cycles. During power-up, a typical inrush draw of 4.5 A lasts for 110 ms before stabilizing, so this transient must be considered when sizing the 24 V supply. Steady-state consumption is limited to 21 W, which helps minimize cabinet heat. Additional features include a 15-pin D-Sub female socket for incremental encoders, a 500 mA source at 11.6 V to energize those encoders, an RS232 service port for parameter access, and relay contacts rated at DC 24 V and 1 A for auxiliary circuit switching.