IT
3-8. Operating Mode/Status Description
Following table shows LCD display for operating modes and status.
(1) If the UPS is in normal operation, it will show seven screens one by one, which represents 3 phase input
voltages (An, bn, Cn), 3 line input voltages (Ab, bC, CA) and frequency in turns.
(2) If parallel UPS systems are successfully set up, it will show one more screen with “
PAR
” in parameter 2
and assigned number in parameter 3 as below parallel screen diagram. The master UPS will be default
assigned as “
001
” and slave UPSs will be assigned as either “002” or “003”. The assigned numbers may be
changed dynamically in the operation;
Parallel screen
Operating mode/status
UPS Power On Description
When UPS is powered on, it will enter into this mode for a few seconds as
initializing the CPU and system.
LCD display
No-output
mode
description
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.
LCD display
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