CC_a031_pllLockLost
CC_a031_pllLockLost
Alert Information
Other
critical
<0.01%
Description
Alternating current (AC) line phase-locked loop (PLL) failed to lock. Check grid frequency and quality.
Potential Impact
Ground fault circuit interrupter (GFCI) cannot function without locked PLL, wall connector will not operate.
Set Condition
PLL was unable to identify valid grid frequency and phase.
Clear Condition
AC line PLL successfully locks.