Product Description:

Bosch Rexroth Indramat manufactures the CSB02.1B-ET-EC-EM-S4-DA-NN-FW drive controller within the CSB Drive Controllers series. The unit governs servo and spindle axes, converts set-point data into power stage commands, and exchanges deterministic messages with PLCs. Mounted in a control cabinet, it forms the interface between fieldbus communication and motor feedback devices for automated packaging, assembly, and printing machinery. This arrangement lets the control section process motion commands, feedback signals, and local I/O in one module, which helps coordinated axis functions respond consistently during cycle changes.

The device integrates a Multi-Ethernet communication interface that supports sercos III, EtherCAT, EtherNet/IP, PROFINET IO, allowing installation on diverse network architectures without external converters. Its analog section can drive loads down to 2 kΩ through the two X38 analog outputs, so common actuators or process transducers can connect directly. Each D/A channel updates every 250 µs, producing fine-grained reference signals for velocity or pressure loops. Six X37 digital outputs can source up to 500 mA total, enabling direct control of contactors or optical indicators. Seven X31 digital inputs and six X37 digital inputs accept PNP signals for limit, home, and sensor status, completing the discrete I/O set needed for coordinated motion.

The built-in multi-encoder interface accommodates EnDat, Hiperface, and resolver feedback, and the controller can generate Absolute and Incremental position signals for downstream devices. Base electronics consume only 17 W, so heat dissipation in the cabinet stays minimal. An internal relay block switches currents up to 1000 mA at 30 V for brake release or interlock tasks. Functional safety is handled by the Safe Motion package, which permits STO and safely limited speed without external safety relays. Two X38 analog inputs capture process variables, allowing closed-loop comparison directly inside the drive and preserving network bandwidth. Because analog inputs and feedback channels are handled in the same controller, signal routing remains straightforward when machine sequences combine motion with process measurements.