Product Description:

The CX1100-0910 power management extension is produced by Beckhoff for the CX Embedded PC Systems series. It attaches to a CX controller base module and forms the interface between the 24 V cabinet supply and the controller electronics. By combining conditioned power delivery with short-term energy storage, the unit protects program execution during brief mains disturbances and provides diagnostic feedback to the higher-level control application. In automation architectures, this module allows PLC logic and fieldbus communication to continue operating through short voltage dips.

Incoming supply is regulated at 24 V DC, which matches the standard control voltage used in many Beckhoff I/O stations. An internal storage bank rated at 20 As stores enough energy to keep the CPU active for a short period after a mains drop. Recharging is electronically limited to 4 A, which helps prevent inrush current from overloading the upstream power supply. Data and status signals pass to the CPU through a 16-bit ISA (PC/104) interface, so no additional backplane is required. The housing has an IP20 rating, making it touch-safe and suitable for use inside closed electrical enclosures where liquid exposure is not expected.

In normal operation, the module can deliver up to 1.1 A from the storage section, while overall power conversion losses are limited to 2 W to help reduce panel heat buildup. The unit has a width of 76 mm, along with a depth of 91 mm and a height of 100 mm, which supports compact cabinet layouts. A mass of 465 g allows DIN-rail mounting without additional supports. A digital power-fail output notifies the controller before shutdown, and the 5-pin open pluggable input connector simplifies wiring. Three diagnostic LEDs for 24 V In, 24 V Out, and Charge provide a quick visual check of the supply state.