Product Description:

The CDB01.1C-ET-EN1-EN1-EN2-NNN-NNN-L2-S-NN-FW is a plug-in control unit manufactured by Bosch Rexroth Indramat for the CDB Control Units series. Mounted on an IndraDrive power section, it supervises axis regulation, gathers encoder data, and handles integrated safety so that servo drives, packaging lines, and material-handling stations execute programmed motions accurately within an industrial automation cell. The card also hosts communication hardware and local processing that link the drive to plant networks.

At power-up, the module draws a base inrush current of 6 A and then operates with a base power demand of 9 W, simplifying thermal design in compact cabinets. Internal watchdog logic generates a diagnostic pulse every 60 ms. Fieldbus traffic passes through the Multi-Ethernet interface, and the copper front end complies with the 100Base-TX standard for 100 Mb/s links. A service port uses a Mini-DIN, 8-pin connector linked to the RS-232 serial interface for service access and diagnostics. The secondary encoder channel (En2) offers regulated 5.0 V DC, while a D-Sub, 9-pin female socket routes hard-wired safety contacts to the drive logic.

Two configurable slots accept Resolver/HSF feedback devices energized by an 8 V DC supply, and a third slot can process EnDat 2.1, 1 Vpp, or 5 V TTL signals for high-resolution position capture. When a resolver is present, the excitation amplitude reaches 18.2 Vpp at 4 kHz, providing the reference carrier for sine-cosine demodulation. The En2 rail can source up to 350 mA, supporting encoders with larger LED arrays or integrated temperature probes. A Safe Torque Off circuit disconnects drive gate pulses when the corresponding signals arrive through the safety connector, giving machine builders a simple way to meet shutdown requirements without external relays.