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4. Operation
4.8 Operating Mode/Status Description
The following table shows the LCD screen 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 shown in the below parallel screen illustration. The master UPS will be assigned automatically as “001” and slave
UPS systems 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 the UPS is powered on, it will enter into this mode for a few seconds as the CPU and
system initializes.
LCD screen
No-output Mode Description When bypass voltage/frequency is out of acceptable range or bypass is disabled (or
forbidden), the UPS will enter into No-output Mode if powering on or turning off the UPS.
The UPS will have no output and the alarm will beep every two minutes.
LCD screen
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