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5. Operation
After the installation, you can start to operate the DC UPS and let your device running
under uninterruptible power supply environment as the following procedure.
STEP 1: Plug the AC input power cord of the DC UPS into the wall outlet (The utility power
outlet)
STEP 2: Push the power on/off switch and you may hear a long beep buzzer alarm for
knowing the unit is properly turned on. You may turn the audible alarm off by pushing the
mute switch button to ON (Push down) position.
Self-test
Use the self-test to verify both the operation of the DC UPS and the condition of the battery.
Turn the mute switch ON then OFF, then ON and OFF again within five seconds. During the
Self-test, the DC UPS operates in backup mode.
The DC UPS automatically conducts a Self-test in two conditions. 1) Operate it and then the
MCU detects battery voltage is higher than 13V. 2) Every 21 days while operating all the
time.
Note: During the self-test, the DC UPS briefly operates on battery-backup power. The
green LED will flash for five minutes during the test period. If the DC UPS passes the
Self-test, it returns to online operation. If the DC UPS fails the Self-test, it immediately
returns to online operation and lights the red LED. The loads are not affected. Recharge the
battery overnight and perform the self-test again. If the red LED is still on, the battery needs
to be replaced.
Summary of Contents for DC UPS
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