Troubleshooting; Block Diagram - Elektro-Automatik Guard LCD2 Serie Bedienungsanleitung

About the device

9. Troubleshooting

When the UPS is having an abnormal condition:
1. First disconnect the input power line and output
connections and then check whether all connections
have been made properly.
2. Check the fuse. If the fuse is blown, then replace it
with one having the same current and voltage rating.
3. Remake all connections and try to switch the UPS on.
When you can't switch the UPS on:
1. Make sure you pressing the button firmly and release
the button when the UPS creates a beep sound.
2. The voltage of the batteries might be too low due to
a long time storage or non-operation. Let the UPS stay
on mains and without load to recharge the batteries.
If you still can't switch on the UPS then contact your
supplier.

10. Block diagram

13
When the UPS is having a short backup time:
1. Overload condition
Unplug the overload causing computers or other equip-
ment. Make sure the total load capacity is not exceeding
the UPS capacity.
2. The batteries have not been charged completely.
Connect the UPS to mains for fully charging the bat-
teries.
3. The performance of the batteries may not be good
due to long time use.
Send the UPS to your supplier for replacing the bat-
teries.
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