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.

• KPS buffer battery voltage dropped below P0-51 threshold (e.g., <19V).
• Faulty KPS buffer battery requiring replacement.
• Inadequate charging current supplied to the KPS buffer battery.

Click steps to track your progress.

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.