MGE UPS Systems 2000, 3000 VA user manual Maintenance, Troubleshooting

4. Maintenance

4.1 Troubleshooting

If one or more LEDs 14 , 15 , 16 or 17 flash, there is a operating anomaly or an alarm.

If a LED flashes, the bargraph data is no longer displayed.

Troubleshooting not requiring MGE after-sales support

Indication	Signification	Correction
LEDs 14, 15 , 16 , 17	The UPS has detected a problem	Shut down the UPS and check that the
flash and the buzzer	concerning the wiring of the	input power cable is properly connected to
beeps.	connection module input.	the input terminal block and the load to the
		output terminal block (see p. 18).
		After correcting any wiring errors, restart
		the UPS as indicated on page 20. If the
		problem persists, call MGE after-sales
		support.
LED 14 flashes and	UPS overload. Overload is too long	Check the power drawn by the equipment
the buzzer beeps.	or too high. The UPS cuts the supply	and disconnect any non-priority devices.
	of power to the connected equipment
	and the buzzer beeps continuously.
LED 17 flashes.	The ambient temperature is higher	Install the UPS in a room where the
	than 35° C.	ambient temperature is not greater than
	The UPS is not designed to	35° C.
	operate more than eight
	hours under these conditions.
LED 20 is ON.	The UPS is in maintenance mode	See point 3 to 6 of in the "Hot-swap and
	(manual bypass)	Install connection modules" part of section
		4.2.

51033211EN/AC - Page 25