Product Description
Bosch Rexroth CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW Servo Drive Control Section
The Bosch Rexroth CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW (Material Number: R911339842) is a high-performance double-axis control section engineered for the Rexroth IndraDrive modular drive architecture. Designed to deliver superior multi-axis synchronization and precision motion control, this control board serves as the central processing unit for dual-axis power sections, reducing hardware footprint and cabinet space.
This unit features flexible Multi-Ethernet master communication (ET) supporting protocols such as Sercos III, PROFINET IO, EtherNet/IP, and EtherCAT via dual RJ45 ports (X24, X25). It is equipped with two standard encoder interfaces (EC/EC) for comprehensive position feedback and built-in “Safety on Board” technology (S4/S4) enabling certified Safe Motion and Safe Torque Off (STO) functions. The control section also includes an integrated operator display panel with tactile push buttons (Esc, Up, Down, Enter) for fast on-site parameter configuration and fault diagnostics.
Technical Specifications:
- Manufacturer: Bosch Rexroth
- Product Series: IndraDrive Control Section (CDB Series)
- Model Code: CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW
- Part / Material Number (MNR): R911339842
- Axis Configuration: Dual-Axis (Double-Axis) Control Section
- Master Communication: Multi-Ethernet (ET) via dual RJ45 ports (X24, X25)
- Encoder Interfaces: Dual EC interfaces (Slot 1: EC, Slot 2: EC) for standard digital/analog encoder feedback
- Safety Technology: Integrated “Safety on Board” (S4-S4 Safe Motion / Safe Torque Off architecture)
- Operator Interface: Integrated digital display with navigation keypad (Esc, Enter, Up/Down keys)
- Connection Ports: D-Sub connectors, RJ45 ports, and pluggable screw terminal blocks
- Firmware: Firmware updateable / ordered separately (-FW designation)
- Country of Origin: Germany

Bosch Rexroth CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW Servo Drive Control Section (Axis Control Card / Main Board)
Bosch Rexroth CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW (R911339842) IndraDrive dual-axis control card featuring Multi-Ethernet interface, dual encoder inputs, and integrated Safety on Board.
| Brand | Bosch Rexroth |
|---|---|
| Model | CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW |
| Part No. | 782798108798 |
| Category | Electrical |
| Link | https://www.echuan-hydraulic.com/product/bosch-rexroth-cdb02-1b-et-ec-ec-nn-s4-s4-nn-nn-fw-servo-drive-control-section-axis-control-card-main-board |
Related Products
- Bosch Rexroth 1070923808-GA1 Industrial Mainboard (Motherboard /
Single Board Computer) - Bosch Rexroth CDB01.1C-PB-ENS-ENS-NNN-NNN-L1-S-NN-FW /
CDB01.1C-PB-ENS-ENS-NNN-NNN-L2-S-NN-FW (R911309016) Servo Drive Control Unit / Axis Control Card (IndraDrive Control Section) - Bosch Rexroth MC061 (0 608 730 103) Sensor Cable
- Rexroth HCS01.1E-W0054-A-03-A-CC-EC-ET-L3-NN-FW Servo Drive Controller
- Rexroth CSB02.1B-ET-EC-EP-S4-NN-NN-FW (MNR: R911382273) Servo Drive Control Unit (Axis Control Card)
- Rexroth HMS01.1N-W0350-A-07-NNNN Servo Drive

