OPTI-UPS DS160KD33 - Manual (Page 24)

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The front panel is located at the front of the PCB holder. It gathers the real time
information of the UPS and shows them clearly to the user. It also provides switches
for controlling and setting the UPS. So, through this panel, the UPS can be not only a
stand alone machine supplying the load but closely related to the user. Each part of
the panel is explained below.
A: LCD display: Real time status, data or historical events is displayed on the LCD.
The UPS parameters, real time clock, inverter, buzzer also can be set through this
LCD. The LCD is back lighted by LEDs for purpose of a sharp display, but in
order to lengthen the LED’s life time, the LED will be automatically shut off 3
minute after no key is activated, will light up again when one of the
up/down/enter key is pushed.
B: Status LEDs: 24 LEDs representing all the important information of the UPS
provide most update information to the user. Therefore these LEDs are especially
important when abnormal conditions happen. The 24 information are as below:
INVERTER ON – inverter is running.
INVERTER SS – inverter static switch conducts while the reserve static
switch is opened.
SHORT CIRCUIT – UPS output is in short circuit state.
FUSE/OVER TEMP SD – inverter shutdown due to either fuse broken or
temperature too high.
INVERTER FAIL SHUTDOWN – inverter shutdown due to inverter output
voltage too low.
BYPASS ON SHUTDOWN – inverter shutdown due bypass breaker is closed
when the inverter is running.
HIGH DC SHUTDOWN – inverter shutdown due to DC bus too high when
the inverter is running.
OVERLOAD SHUTDOWN – inverter shutdown due overload the inverter
for a period over the inverter can endue, will restart after 7 seconds.
70% LOAD – load connected to the output is over 70% of the UPS rating.
110% LOAD – load connected to the output is over 110% of the UPS rating.
125% LOAD – load connected to the output is over 125% of the UPS rating.
150% LOAD – load connected to the output is over 150% of the UPS rating.