MGE UPS Systems Pulsar EX 2200RT - Manual (Page 20)

Indication Diagnostic Correction
LED 27 flashes and UPS overload. Overload is too long or too high. ◗ Check the power drawn by the
the buzzer beeps. ◗ If AC power is present and within tolerances, the equipment and disconnect any
UPS goes to bypass mode (supply directly by the non-priority devices.
AC-power source). LED 19 flashes.
The buzzer beeps every second.
◗ If AC power is not present or not within tolerances,
the connected applications are no longer supplied.
The buzzer sounds continuously.
LED 25 flashes and A battery fault was detected during the ◗ Check that the battery connector
the buzzer beeps. automatic battery test. is fully pushed in.
◗ Replace battery module (see Maintenance section).
LED 25 flashes and The battery has reached the theoretical end ◗ Reset the alarm by pressing
the buzzer emits a of its service life. buttons 22 and 23
long beep once simultaneously for 3 seconds.
per hour. ◗ It is advised to replace both batteries at
See the section on maintenance. the same time with the same rating
as the original batteries.
The yellow LED 24 The function for monitoring the phase and neutral ◗ Directly earthed neutral type
flashes, the red position of your electrical network has detected a networks: check the cabling
indicator light 11 reversal. of phase and neutral on your
behind the UPS electrical network.
comes on and the For all other network types,
buzzer sounds de-activate the detection function
continuously. (this function is only operational
for directly earthed neutral electrical
networks):
Press for at least 5 seconds the
pushbutton 10 behind the UPS
(UPS stopped and connected to the
network for less than 30 minutes).
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If any of LEDs 25 , 26 or 27 flash, there is a operating anomaly or an alarm.
NOTE: If a LED flashes, the bargraph data is no longer displayed.
4.1 Troubleshooting
4. Maintenance