SDU AC B-Series
A272-353 Rev. 1 2/2021
5 |
P a g e
3.0
General
Description
Figure 2: Front Panel
1.
POWER ON/OFF/TEST:
NOTE: The factory ships unit with Power Lock Feature enabled. This is to avoid accidental startup of
the UPS during shipping via the push button.
•
To DISABLE
–
end user needs to apply desired AC input on the UPS Input AC connector then
press the On/OFF Power button for >3 secs and release to turn on the unit.
•
To ENABLE - apply AC input then press the On/OFF Power button for >10secs and release.
ON - To turn the UPS ON, press and release the button for more than 3 seconds, UPS turns on and
the LEDs light.
OFF - Press button until the audible alarm silences, UPS turns off.
SELF-TEST - Press the button for less than one second to activate the self-testing. After self-test 24
hours is needed before another self-test can be performed to avoid battery degradation. Monthly
automated self-test programed by default.
2.
Battery Warning/Overload Indicator (Red LED):
The LED
fl
ashes when the battery needs to be recharged and tested.
The LED will illuminate when the unit is subjected to an overload condition.
If the unit shuts down due to overload, the LED and alarm will continue for two minutes.
3.
ON Battery Indicator (Yellow LED):
The LED illuminates when the UPS is supplying battery power to the
loads.
4.
AC Input Normal Indicator (Green LED):
The LED illuminates when the line input voltage is normal.
5.
Input:
IP20-rated Input Screw Terminals.
6.
Output:
IP20-rated Output Screw Terminals.
7.
USB Port:
High speed 2.0 Standard USB Type B Peripheral Communication Port used to establish control
and monitoring with UPSwatch software.
