Product Description:

The CDB01.1C-SE-ENS-ENS-NNN-MA1-L1-S-NN-FW is a modular control slice from Bosch Rexroth Indramat that belongs to the CDB Control Units series. Installed in an IndraDrive stack, this unit supervises two motion axes, exchanges data with higher-level controllers, and distributes encoder feedback to the drive electronics. Its role in industrial automation is to coordinate position loops, monitor limits, and issue enable or lockout commands so connected servo inverters follow commanded profiles safely and accurately. This arrangement lets one compact module handle communication, feedback processing, and motion supervision within the same drive assembly.

Internally, the hardware supports 2 synchronized axes, letting one module govern two independent power sections. During standby, the electronics draw only 9 W, which helps reduce cabinet heat. Command exchange is handled over the SERCOS II fiber-optic ring, so deterministic telegrams circulate in sub-millisecond cycles. Each axis can process an ENS optical encoder, and the board offers two evaluation channels with up to 500 mA of supply current at 11.6 V. The MA1 option card adds two differential analog inputs and two outputs, and every channel uses 12-bit resolution so small setpoint changes can be handled accurately.

Power-up conditions are addressed with an inrush limit of 6 A, a value used for circuit-breaker sizing. A service interface communicates through RS-232 at up to 115 kbaud, keeping the real-time bus undisturbed during service tasks. For time-critical digital inputs, the unit accepts pulses as brief as 60 ms. A start-lockout input monitored at 24 V / 3 mA provides an external enable signal before motion is permitted. Additional values include an 11.6 V encoder supply, a 1000 kΩ MA1 input resistance, and a 10 mA analog output drive current, which help set wiring limits and maintain signal integrity across the installation.