Product Description:

The CSB01.1C-S3-ENS-EN2-L1-S-NN-FW is an axis drive controller from Bosch Rexroth Indramat in the CSB Drive Controllers series. It resides in control cabinets where it closes current and position loops for servo motors, translating network commands into precisely timed gate signals for attached power stages. By handling encoder feedback internally and sharing synchronized data with higher-level PLCs, the unit supports conveyor, pick-and-place, and multi-axis machining applications that demand deterministic motion.

At the IGBT stage, the current loop updates every 125 µs, enabling tight torque regulation during fast reversals. The PWM reaches 8 kHz, helping keep phase currents smooth at speed. Four programmable outputs supply 24 V, 0.5 A each, so indicator lamps or brakes can be driven directly. On power-up, the unit draws 4.5 A during a 110 ms inrush, which helps prevent nuisance trips. Axis data move across SERCOS III fiber, allowing sub-microsecond synchronization. X4 accepts IndraDyn, HIPERFACE, 1 Vpp, or TTL encoders, while X5 accepts EnDat 2.1, 1 Vpp, or TTL. The En2 sense lead may reach 75 m without signal loss.

The housing measures 241 mm high, 49.5 mm wide, and 103 mm deep, so it fits densely on DIN rails beside power modules. A form-C relay rated at 24 VDC, 1 A can be wired as a ready, fault, or brake-release contact, which reduces external wiring. For risk reduction, the controller implements Starting Lockout, ensuring the motor cannot energize until the safety input is cleared. Network jitter is limited by a 1000 µs minimum SERCOS cycle, and the logic electronics consume only 23 W from the auxiliary 24 V supply, helping panel power supplies remain within their capacity. When shielded correctly, the assembly accommodates the specified encoder pairs and retains cable integrity over the permitted run length.