To keep this Retentive RAM alive when the main 24V DC power supply is disconnected, the unit relies on a backup battery. This is usually a cell or a standard Coin Cell (CR2032) , depending on the specific KBC model.
If a machine has been disconnected from its main power supply for an extended period (e.g., a plant shutdown or storage), the burden shifts entirely to the battery to keep the memory alive. If the battery was already weak, this prolonged "off" state will accelerate the drain, triggering the warning sooner than expected. kbc battery level low
The battery percentage displayed on KBC devices is a software estimate based on voltage readings. Over time, the software "forgets" what a full charge looks like. You may see 100% on screen, but when you unplug it, the device immediately goes to "battery level low." To keep this Retentive RAM alive when the
While it may not sound as catastrophic as a "Motor Overload" or "Emergency Stop Activated" alarm, the "KBC Battery Level Low" warning is a critical maintenance signal that should never be ignored. It serves as the canary in the coal mine for your control system's memory retention. Ignoring it can lead to lost programs, extensive downtime, and costly re-commissioning processes. If the battery was already weak, this prolonged