Product Description:

The CDB01.1C-SE-ENS-ENS-EN2-NNN-L2-S-NN-FW control section is a dual-axis control unit produced by Bosch Rexroth Indramat within the CDB Control Units series. Installed in an IndraDrive modular drive stack, the unit coordinates power sections and motor feedback to carry out closed-loop motion tasks on factory machinery and handling equipment. It acts as the command layer between PLCs and the inverters, providing real-time regulation for positioning, velocity, and torque in automated systems. Typical applications include packaging machines, transfer gantries, and printing presses.

Its communication backbone is the SERCOS II fiber-optic bus, which allows synchronized data exchange with the drive stack. The controller closes the current loop every 125 µs, the velocity loop every 250 µs, and the position loop every 500 µs, allowing fast disturbance response and stable motion control. Commands are applied to two axes, and each axis is supervised by a pair of standard encoder evaluation channels. An auxiliary port supports EnDat 2.1, 1 Vpp, or 5 V TTL encoders, so linear and rotary feedback devices can be used on the same axis. The EN2 encoder supply provides 5.0 V at 350 mA, while the ENS supply provides 11.6 V at 500 mA for sensors or measuring heads that require higher excitation voltage.

A front-panel serial jack provides access through RS232, while the optical ring can operate with a minimum network cycle of 1000 µs under a single master. The integrated safety layer includes Safe Torque Off, which permits immediate removal of energy from the power stage without external relays. For process feedback, the board provides 2 analog outputs that can transmit torque, speed, or position values to analog PLC channels. A single normally open relay contact provides galvanic isolation for ready or fault indication, giving the machine control system a discrete voltage-free signal for interlocks.