Product Description:

The CSB02.1B-ET-EC-CN-L3-NN-NN-FW belongs to the CSB Drive Controllers series from Bosch Rexroth Indramat. It forms the control section of a modular servo drive by handling logic, feedback processing, and fieldbus communication while the attached power section drives the motor windings. In industrial automation, the unit translates command data from a PLC into finely timed gating signals, monitors encoder feedback, and initiates safe shutdown when required for coordinated multi-axis motion.

It draws its logic supply from DC 24 V, and the electronics consume 17 W, so cabinet power demand remains low. The controller accepts 11 digital inputs for limit switches, homing sensors, or user functions, and it provides 5 configurable I/O points that can operate as inputs or outputs. Two command channels are available as two ±10 V analog outputs, which can forward velocity or torque references to external actuators. Position capture tasks are handled by two probe terminals, while the feedback socket carries a multi-encoder interface that can read EnDat, Hiperface, and resolver signals without adapters. Plug-in modules labeled ET, CN, and L3 add 2.7 W, 1.5 W, and 1.0 W respectively, allowing the axis package to be scaled without overloading the 24 V supply.

Network traffic reaches the board through an Ethernet controller rated at 100Base-TX that is wired through a shielded RJ-45, 8-pin jack, and it also includes a CANopen port for legacy fieldbus loops. The main data path uses Multi-Ethernet, allowing protocols such as Sercos III and EtherNet/IP to be selected for the application. The integrated safety circuit provides the category-compliant STO function, which removes gate signals to the power module when either input channel is de-energized. The shielded RJ-45 connection supports orderly cable routing beside adjacent modules, and the low-wattage module stack leaves thermal headroom for tightly packed cabinets.