MGE UPS Systems 1500C Maintenance, Troubleshooting, Indication Signification, Correction

4.Maintenance

4.1Troubleshooting

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 after-sales support

Indication	Signification
LED 12 flashes and the	UPS overload. Overload is too long or too high.
buzzer beeps.	◗ If AC power is present and within tolerances, the UPS
	goes to bypass mode (supply directly by the AC-power
	source). LED 20 flashes.
	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.

LED 14 flashes.	A battery fault was detected during the automatic
	battery test.
The yellow LED Ê15.	The function for monitoring the phase and neutral
flashes, the red indicator	position of your electrical network has detected a
light 10 behind the UPS	reversal.
comes on and the buzzer
sounds continuously.

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 DIN-SCHUKO type, by 180 degrees or contact an electrician to modify your electrical network.

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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