Product Description:

The CDB01.1C-SE-EN2-EN2-MA1-MA1-NN-S-NN-FW control section is produced by Bosch Rexroth Indramat and belongs to the CDB Control Units series. It is a plug-in card that installs in IndraDrive power modules to coordinate two axes of motion, acting as the interface between the drive electronics and the higher-level machine controller. Within an automation cell, the card processes fieldbus commands, encoder feedback, and local I/O so that servo loops can be closed in real time. Its plug-in format keeps the control hardware inside the drive assembly rather than requiring a separate standalone control card elsewhere in the cabinet.

For axis coordination, the unit supports 2 axes, each managed through the SERCOS II fiber-optic network that carries position and parameter data with deterministic timing. Local machine signals enter through eight digital inputs rated at 24 VDC / 3 mA, while actuator commands exit on four digital outputs specified at 24 VDC / 0.5 A. Analog reference values such as torque limits are provided by two outputs scaled to 5 VDC / 1 mA. The EN2 option block brings two incremental or absolute encoder channels. They are presented on a D-Sub 15-pin connector, have a per-channel current capacity of 350 mA, and permit redundant feedback wiring. The MA1 block includes two differential analog inputs, two analog outputs, and two extension slots, allowing auxiliary sensors or drive-based control loops to be integrated without external signal conditioners.

Data exchange with plant-level diagnostics is handled by an RS232 service port that transmits up to 115 kBaud over a maintenance cable length of 15 m. The EN2 feedback supply delivers 5.0 VDC to power encoders directly from the card, eliminating separate power wiring. When signals are converted through the MA1 channels, a resolution of 12 bits provides adequate granularity for pressure, position, or vibration inputs that must be processed in the drive. The RS232 service connection also supports local access when operating data or status information must be checked at the drive. This arrangement keeps service communication, encoder power, and analog signal handling on the same control section.