Product Description:

The CX2900-0103 cooling module is produced by Beckhoff for integration with CX Embedded PC Systems controllers. It is an active fan unit that attaches to a CX processor housing to remove heat generated during continuous PLC or motion-control duty. By regulating internal temperature, the module protects the electronics and helps maintain stable operation in industrial automation racks. Its role is especially important in compact control assemblies where processor heat can build up during long operating cycles.

The unit has a depth of 16 mm, a width of 66 mm, and a height of 67 mm, so it can be added without increasing rail spacing beyond the controller profile. Airflow is delivered through a centrifugal impeller with a 60 mm diameter. These proportions match the existing CX heat-sink recess, so the cooler can slide into place without disturbing adjacent modules. When the housing temperature drops below the low-temperature threshold, the controller commands a baseline speed of 2400 rpm to reduce unnecessary wear on the fan assembly. Continuous monitoring inside the CX system adjusts cooling output as thermal demand changes during normal operation.

During demanding cycles, the fan can reach a maximum speed of 5900 rpm, while a fault is triggered if rotation falls below 1000 rpm. This allows the control system to detect reduced airflow before a complete stall occurs. Temperature supervision sets an upper alarm at 85 °C, prompting maximum airflow until the processor block cools. The module has a 5 years service interval for the bearings and filter mat, allowing routine replacement to be planned during scheduled downtime. Diagnostic monitoring can also issue warnings through the control system while the fan is still operating, which supports early attention to cooling performance.