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Battery Shutdown status). If the power returns to normal before the UPS goes to Low Battery Shutdown mode,
UPS will switch back to consume power from AC utility power and charge battery automatically.
5.4 When UPS is overloaded
When UPS is overloaded (OVERLOAD indicator lit, ALARM indicator blinks and alarm sound), the AUTO-
MATIC TRANSFER SWITCH will transfer load to consume power from bypass power source direclty (AUTO
BYPASS indicator blinks and alarm sound) for preventing the UPS damage. User should reduce some loads
until load quantity is about 75% and control the quantity not exceed 100% in order to make the loads
consume power from the UPS all the time.
5.5 No load shutdown mode
When the UPS is supplying backup power and there is no connected loads, UPS will shutdown auto-
matically after supplies backup power for 10 minutes in order to reserve the battery power. This feature is set
disabled in the standard product. (This feature is available in the UPS with Battery save / No Load Shutdown
mode)
5.6 Economy mode
Economy mode is an energy saving mode. In this operating mode, UPS transfer loads to consume
power from bypass power source when the bypass power source is normal and run the INVERTER operation to
be the backup source when the bypass power source fails.
5.7 Sleep mode
Sleep mode is an energy saving mode. In this operating mode, UPS transfer loads to consume power
from bypass power source and stop the INVERTER operation when UPS found no connected load or load
consume power from the UPS is lower than no load condtion setting. During Sleep mode, If there are loads
greater than set value, the INVERTER section will restart automatically and exit from sleep mode.
When UPS found no load and bypass power source fails, UPS will start INVERTER section and stand by
to be the backup power source when there is load.
5.8 UPS self-test
UPS tests the operation of RECTIFIER, CHARGER and INVERTER section. There are 4 types of self-test.
5.8.1 Start-up self-test
When press ON button to start-up the UPS, it tests the operation automatically.
5.8.2 Manual self-test
When the UPS is operating, double click the ON button to start manual self-test.
5.8.3 Schedule self-test (option)
User can set UPS self-test schedule via Easy-Mon X (Read more details in Easy-Mon X user’s guide in
the CD-ROM or at www.leonics.com).
5.8.4 Auto self-test (option)
User can set UPS self-test automatically every 2 weeks or every day. This feature is disabled in the
standard product.
Every test, if the battery is fully charged, the UPS will also check if the battery is still in good condition
or need to be replaced.
5.9 Self-test cancellation
Before the UPS starts INVERTER section test, user can double click the ON button to cancel the self-test.
