4. Maintenance
4.1 Troubleshooting
If any of LEDs 12 , 13 or 14 flash, there is a operating anomaly or an alarm.
If a LED flashes, the bargraph data is no longer displayed.
Troubleshooting not requiring MGE UPS SYSTEMS
Indication
LED 12 flashes and the buzzer beeps.
LED 14 flashes.
Signification
UPS overload. Overload is too long or too high. The buzzer sounds continuously.
◗If AC power is present and within tolerances, the UPS goes to bypass mode (supply directly by the
◗If AC power is not present or not within tolerances, the connected applications are no longer supplied.
A battery fault was detected during the automatic battery test.
Correction
Check the power drawn by the equipment and disconnect any non- priority devices.
◗Connect that the battery connector is fully pushed in.
◗Replace battery module (see the Maintenance section).
Troubleshooting requiring MGE UPS SYSTEMS
Indication | Signification | Correction |
|
|
|
LED 13 flashes and the | UPS electronics have detected a UPS fault. |
|
buzzer sounds | Depending on the UPS personalisation parameters |
|
(see section 3.4), there are two possibilities: |
| |
continuously. |
| |
|
|
◗the equipment connected to the UPS continues to be
supplied, but directly from the | Call the | |
department. | ||
the automatic bypass (LED 20 ON); | ||
|
◗the connected equipment is no longer supplied.
The equipment connected to the UPS is no longer protected.
51031604EN/AA - Page 21
