MGE UPS Systems 4 - Manual (Page 19)

4—5
Although six button states are detectable, not every button combination has an assigned task. button
states/combinations that have no assigned task will simply be ignored.
The “Utility Power Present” does NOT reflect the state of the UPS output. If, for example,
the UPS has shut down due to an output overload, the Utility Power Present LED may be
solidly ON but the UPS output could be turned off (due to the overload).
4F. Fault Alarms
LED Status Audible Alarm Pattern UPS Action
Fault " " LED flashes until Low Run time Warning Warning when there is less than
alarm is acknowledged or (short-long-short beep) 3 minutes of back-up time
cleared. remaining.
Fault " " LED flashes until Low Battery Warning/Shutdown Occurs within 1 minute of UPS
alarm is acknowledged or (short-long-long beep) shutdown. Could also indicate
cleared. a faulty battery charger.
Fault " " LED flashes until High Battery Warning There is a problem with the
alarm is acknowledged or (short-short-short-long beep) battery system.
problem is corrected.
Fault " " LED and Charge Charger Problem Warning The battery system may not be
" " LED flashes until alarm (long-short-long-short beep) plugged into an AC source or
is acknowledged or problem there is a charger problem.
is corrected.
Fault " " LED Battery Fail Battery/Inverter Test Failure Indicates failed battery/inverter
" " LED flashes until alarm (long-short-short-short beep) test performed every 28 days.
is acknowledged or cleared. Clear fault and recharge battery
for 8 hours. Manually initiate test
again. If fault recurs, call for
service.
Fault " " LED flashes until Output Voltage Low Output shuts down to protect
alarm is acknowledged or (on inverter, load from low voltage.
cleared. short-long-short-short beep)
Fault " " LED flashes until Output Voltage High Output shuts down to protect
alarm is acknowledged or (on inverter, load from high voltage.
cleared. short-short-short-short beep)
Fault " " LED and Overload Output Overload Flashes when load exceeds
" " LED flashes until alarm Warning/Shutdown 105%, solid when overload is
is acknowledged or problem (long-long-long beep) 101-105%, automatically clears
corrected, flashes when when load is reduced.
shutdown is imminent, and
solid if warning only.
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