LEGRAND PREMIUS User And Installation Manual page 30

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K
L
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UPS will lock itself, if there is a critical abnormality or failure condition
UPS may lock itself up while there was critical abnormal or failure condition happened.
Page -31
User may see LCD display as below figure-N.
N
N
UPS
INPUT LOAD
Buzzer Code
!
Alarm
PREMIUS
1-10 kVA
30