UDD-SD-110/ Release Date: 19.12.2014/Rev No: 1/Rev. Date: 30.07.2015
9 Trouble Shooting
1. Charge battery up to 8 hours.
2. Replace with the same type of
battery.
No LED display on the
front panel.
3. Power switch is not pressed.
3. Press the power switch again.
Alarm buzzer beeps
continuously when AC
supply in normal.
Verify that the load matches the UPS
capability specified in the specs.
1. Remove some non-critical load.
2. Battery voltage is too low.
2. Charge battery 8 hours or more.
When power failure back-
up time is shorten.
3. Battery defect due to high
temperature operation
environment, or improper
operation to battery.
3. Replace with the same type of
battery.
Mains normal but LED is
flashing.
Reconnect the power cord properly.
If any abnormal situation accor that are not listed above, pleace call service people immediately.
10 Specifications