Njoy Ranger 60KR User Manual page 34

Operating mode/status
Descrip-
tion
UPS
Power
On
LCD
display
No
output Descript
mode -tion
LCD
display
34
Parallel screen
When UPS is powered on, it will enter into this mode for a few
seconds as initializing the CPU and system.
When bypass voltage/frequency is out of acceptable range or
bypass is disabled (or forbidden), UPS will enter into no-output
mode if powering on or turning off the UPS. It means the UPS
has no output. Alarm beeps every two minutes