Product Description:

The CDB01.1C-SE-ENS-ENS-MEM-MA1-S2-S-NN-FW is a plug-in motion control card from the CDB Control Units series manufactured by Bosch Rexroth Indramat. Installed on a compatible drive power section, it supervises command processing, feedback evaluation, and safety monitoring for multi-axis automation. The board integrates an ENS encoder interface, a MEM high-speed capture channel, and an MA1 analog module, giving the drive a consolidated platform for velocity loops, position loops, and Safe Motion functions. This arrangement keeps the control section closely coupled to the power electronics, which helps maintain consistent timing between command execution and feedback handling.

The board draws a base power of 9 W during standby and exchanges real-time setpoints and diagnostics over the SERCOS II fiber-optic ring. It natively handles 2 digital axes and routes incremental encoder signals through an ENS converter that digitizes feedback with 12 bit resolution. For noise immunity, the ENS analog front end has a cut-off frequency of 500 kHz, while differential TTL streams are accepted up to 400 kHz. When position latching is required, the MEM channel provides deterministic capture with an output toggle frequency of 1 MHz, which supports accurate time stamping of fast trigger events and repeatable registration functions. That combination is useful where encoder quality and event capture both affect synchronized motion.

The ENS section is powered by a steady 500 mA supply drawn from an internal rail held at 11.6 V. Two analog inputs and two analog outputs on the MA1 module share the same word length, supporting calibrated torque or speed references and straightforward analog signal exchange with surrounding equipment. These analog channels can be used for external references, monitoring values, or other auxiliary interface tasks within the drive system. During power-up, the card briefly sinks an inrush current of 6 A with a pulse width limited to 60 ms, which allows standard drive supplies to charge its capacitors without tripping protection devices. Safe Motion is implemented in hardware so monitored stops and limited-speed modes remain active even when the SERCOS ring is reset.