Product Description:

Bosch Rexroth Indramat produces the CDB01.1C-ET-EN1-EN2-NNN-MEM-S2-S-NN-FW as part of the CDB Control Units series. This control unit is installed on IndraDrive power sections to process command data, manage feedback devices, and forward real-time fieldbus traffic, allowing coordinated axis control in industrial automation cells. The device connects higher-level controllers through Multi-Ethernet, meaning it can switch between several Ethernet-based protocols without hardware changes.

Physical transmission follows the 100Base-TX standard, so common Cat5e cabling and standard network switches can be used. Internal electronics draw only 9 W at idle, limiting cabinet heat load and reducing power-supply demand. When the DC bus is energized, the inrush limiter caps startup current at 6 A, preventing nuisance tripping of upstream protection. Resolver and HSF inputs on Encoder Interface 1, plus EnDat 2.1, 1 Vpp, or 5 V TTL signals on Encoder Interface 2, let the control unit evaluate both absolute and incremental feedback without external converters. The MEM interface can issue position pulses up to 1 MHz with a maximum width of 60 ms, and its dedicated link supports cable runs to 40 m.

Two independent analog channels deliver 2 programmable outputs for drive-based process variables or speed references. Each digital output line sources up to 500 mA, allowing direct actuation of relays or optocouplers. The HSF supply on Encoder 1 delivers a regulated 8.0 VDC, while Encoder 2 can maintain feedback accuracy over extensions as long as 75 m when sense lines are used. Safe-torque-off, safe-stop, and monitored stop functions are implemented under Safe Motion, so safety relays can be eliminated in Category 3 or 4 machine architectures. Encoder emulation facilitates legacy drive upgrades by mirroring absolute or incremental signals to downstream controllers without extra hardware.