Product Description:

Bosch Rexroth Indramat supplies the CDB01.1C-S3-ENS-ENS-EN1-EN1-NN-S-NN-FW control unit as part of its CDB Control Units series. This modular unit acts as the command layer inside IndraDrive inverter stacks. It interprets fieldbus traffic and generates drive-ready signals for servo axes in automated machining, packaging, and material handling lines.

The unit provides two analog outputs, and each channel can drive loads down to 5 kΩ. Its DAC resolution of 19.5 mV/inc supports fine speed or torque references. These outputs swing up to 5 V, letting the controller interface with typical 0 to 5 V drive circuits. For binary signaling, every digital output can sink or source 500 mA, enabling direct actuation of relays or optocouplers without external amplifiers. A built-in RS-232 maintenance port streams parameter data at up to 115 kBaud, simplifying bench setup. The same port accepts cables up to 15 m long, while pulse-capture inputs register events down to 4 µs on probe type 2 and 200 µs on probe type 3. A maximum commanded pulse may last 60 ms without overrun.

Group limitation protects field wiring, and the combined current of the digital outputs is capped at 1000 mA so total thermal dissipation remains predictable. Feedback from resolver channel En1 is excited at 4 kHz with a carrier amplitude of 18.2 Vpp, supporting high-resolution angle detection over long motor leads. Sercos III communication is implemented through an RJ-45 8-pin port that adheres to the IEEE 802.3 physical layer, allowing deterministic Ethernet motion control. During power-up, the control unit draws a typical inrush of 6 A and thereafter maintains total consumption near 34 W, which eases cabinet thermal design. The RS-232 service lead can reach 15 m without signal repeaters, permitting remote console access on mezzanine or floor-level panels.