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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 primary UPS will be assigned automatically as "001". Secondary
UPS systems will be assigned as either "002" or "003". The assigned numbers may be changed dynamically in the operation.
Operating Mode/Status
UPS Power On
Description
LCD Panel
No-output
Description
Mode
LCD Panel
Parallel Screen
When the UPS is powered on, it will enter into this mode for a few seconds as the CPU and system
initialise.
When bypass voltage/frequency is out of acceptable range or bypass is disabled (or forbidden), the
UPS will enter No-output Mode if powering on or turning off the UPS. This means the UPS has no
output. The alarm will beep every two minutes.
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