Product Description:

The CDB01.1C-SE-ENS-EN2-NNN-NNN-NN-S-NN-FW control unit is part of the CDB Control Units series from Bosch Rexroth Indramat. As a plug-in module, it coordinates two drive axes inside a modular Rexroth inverter, translating motion commands from higher-level automation into precise current and velocity setpoints. By integrating communication, encoder evaluation, and basic I/O, it allows compact multi-axis platforms without external control cards.

It manages 2 synchronized axes and exchanges real-time setpoint data with the drive via the SERCOS interface, transported over fiber optic cables that isolate noise and allow daisy-chain wiring. Each digital input expects 24 V at 3 mA and can be sampled with a typical probe response time of 1 µs, enabling fast registration of cam switches or touch probes. An internal 1.1 A supply powers those inputs as well as the onboard relay, which is rated for DC 24 V at 1 A. For maintenance or parameter backup, a built-in RS232 port offers serial access. The first encoder channel supports IndraDyn or Hiperface feedback at 1 Vpp or TTL levels and provides a stabilized 12 V sensor supply, while the second channel accepts EnDat 2.1 signals and delivers 5 V to the transducer.

The module incorporates a single-line display on the front panel that shows operating states and fault codes without connecting a PC. With a width of 49.5 mm, a height of 322.6 mm, and a depth of 103 mm, it fits a single slot in the servo inverter rack, leaving space for additional option cards. The housing is slim and keeps signal paths short. Mechanical installation involves sliding the card into the control section and tightening the fieldbus clamps. Once seated, the 1.1 A I/O source and both encoder supplies are routed automatically through the backplane, completing power and feedback distribution to the connected drives.