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.
The yellow LED 15 flashes, the red indicator light 10 behind the UPS comes on and the buzzer sounds continuously.
Signification
UPS overload. Overload is too long or too high.
◗If AC power is present and within tolerances, the UPS goes to bypass mode (supply directly by the
The buzzer beeps every seconds.
◗If AC power is not present or not within tolerances, the connected applications are no longer supplied. The buzzer sounds continuously.
A battery fault was detected during the automatic battery test.
The function for monitoring the phase and neutral position of your electrical network has detected a reversal.
Correction
Check the power drawn by the equipment and disconnect any non- priority devices.
◗Check that the battery connector is fully pushed in.
◗Replace battery module (see the Maintenance section).
Directly earthed neutral type networks: to correct cabling, unplug and turn the network socket, of the
For all other network types, de- activate the detection function (this function is only operational for directly earthed neutral electrical networks):
Press for at least 5 seconds the pushbutton 9 behind the UPS (UPS stopped and connected to the network for less than 30 minutes).
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