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4.3.
Operation
4.3.1. Using the standard LED panel
4.3.1.1 Start Up in Normal AC Mode
1. Before commencing ensure that the grounding is connected properly.
2. Ensure that the utility voltage matches the input voltage window of the UPS.
3. Connect the UPS main power cord into the utility AC power source
receptacle.
4. Switch on the AC power source. All of the LEDs on the front panel display
will flash once after five seconds. At the same time, the fan at the front of
the UPS will start operating.
5. Press and hold the ON button ‘
’ for approximately one second to start
the UPS. The buzzer will beep and the LED indicators "
" ,"
","
"and "
" will shine after 1-5 seconds. The start-up
procedure is now completed, and the UPS outlets are ready to supply
power to the load.
6. It is advisable to perform a battery mode test before connecting the loads to
the UPS to ensure that the batteries are working properly. To do this,
switch off the AC power source when the UPS is on. The
LED on the
front panel display will turn off, the
LED will shine, and the buzzer will
pulsate, indicating that the UPS is in Battery Mode. Connect a non-critical
load to the UPS outlets to confirm that the batteries are supplying power.
Repeat the test by switching on and off the AC power source to ensure that
the UPS is functioning properly.
4.3.1.2 Start-up in Battery Mode (Cold Start)
This UPS can be switched on without the presence of an AC power source.
Press and hold the ON button ‘
’ until the buzzer beeps. Release and
then within the next 10 seconds press and hold the same button a second time.
The UPS will perform its start-up procedure. The LEDs "
" ,"
","
"and
"
" will shine after 1-5 seconds, and the buzzer will pulsate to indicate
successful power-on.
Note: Ensure that the UPS batteries are pre-charged for at least four hours
by simply connecting the AC power cord to the utility receptacle.
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4.3.1.3 Shutdown
1. Shutdown in AC Mode
Press and hold the OFF button ‘
’ for five seconds until the buzzer beeps.
The UPS will cut the power supply to the outlets. The ventilating fans will continue
to operate. Switch off the AC power source. The ventilating fans will stop. The
UPS is now completely shut down.
2. Shutdown in DC Mode
Press and hold the OFF button ‘
’ for five seconds until the buzzer beeps.
The UPS will cut the power supply to the outlets. The LEDs will turn off, and the
ventilating fans will stop after ten seconds and the ±BUS discharge is below 42 V.
The UPS is now completely shut down.
4.3.1.4 Self Testing in AC Mode
After the UPS has been successfully started in AC mode, press and hold the
Self-Test button ‘
’ for five seconds until the buzzer beeps. The
LED will
shine to indicate that the self-test is in progress. When the self-test is completed
the UPS will return to AC mode. If there were no faults or abnormal conditions
then the
and
LEDs will turn off.
Note: The main function of self testing is to run a discharge test on the
batteries.
4.3.2. Beep Codes
The following table contains common UPS statuses with their beep codes.
UPS Status
Beep Code
UPS faulty, Inverter shut down.
All functions inhibited.
Long Continuous Beep
Control keypad error
Long Continuous Beep
UPS faulty, loads continue to
be supplied via Inverter or
Bypass.
Single beep every two seconds
In battery mode
Single beep once per second
Battery low
Quick and short successive beeps
Confirm RS-232 port receiving
two quick and short beeps
Service mode okay
one quick and short beep
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