Filter
Top Products
Page A4
7. Alarm for abnormal input voltage.
A) During Start-up, the Line LED will flash if the input voltage drops below 185V or above 261V. Pressing the “|” button will not
switch the UPS from Bypass Mode to Inverter Mode.
(B)During operation, the UPS will switch from Inverter Mode to Battery Mode if the input voltage drops below 170V or above
276V.
(C) In Battery Mode, the UPS does not change mode even if the line power recovers when voltage is below 170V or above 276V.
If voltage is between 185V and 261V, the UPS will switch back to Line Mode.
Figure 3.7-1 Bypass Mode
Figure 3.7-2 Battery Mode
Figure 3.8-1 Bypass Mode
Figure 3.8-2 Inverter Mode
Figure 3.9 Bypass Short Alarm
8. Battery Mode over-voltage alarm.
When the battery voltage exceeds 300V, the alarm will sound continuously and show the display below:
NOTE: In Battery Mode, the batteries are discharging, hence no alarm sounds.
9. Bypass STS short alarm.
The system will detect if the bypass STS gets shorted when the line breaker is turned on. If the STS short is detected, the
display shows as below and the alarm sounds continuously.