KPS Buffer Battery Undervoltage (U<19V)

What does Check battery PMx mean?

The buffer battery voltage for the KPS module (PMx) has dropped critically low, below 19V, indicating a severe undervoltage condition that likely requires battery replacement.

1. 1

   Charge the battery.

2. 2

   Exchange the battery.

3. 3

   Manually save the mastering data via KUKA HMI (`Setup > Master > Save current data`) before battery exchange.