Liebert PowerSure PS250-50S - Manual (Page 9)

9
250 VA LED & ALARM INDICATIONS
Condition Green AC
Light (4)
Audible Alarm Status
NORMAL/START UP On after Beep Single Beep, then Off Operate
Start-Up Test Fail On after Beep Fast Beep for 15 Sec and then Off Operate
Input Frequency Mismatch with
Option Switch Setting
Input Voltage Below Threshold
Off Continuous Will Not Start
Overload/Short Circuit Off Continuous for 15 Sec and then Off Will Not Start
NORMAL MODE On Off Operate
Battery Test Fail On Fast Beep for 15 Sec and then Off Operate
Overload/Short Circuit Off Continuous for 15 Sec and then Off Shutdown
BACKUP MODE Off Slow Beep Operate
Low Battery Alarm Off Fast Beep Warn of Shutdown
Low Battery Shutdown Off Continuous for 15 Sec and then Off Shutdown
Main Overvoltage
(transfer enabled) Off Slow Beep Operate
The UPS starts and repeats the battery test sequence every hour until the test is passed.
400/600 VA LED & ALARM INDICATIONS
Condition
Green AC
Light (4)
Amber
Battery
Light (2)
Red Warning
Light (3) Audible Alarm Status
NORMAL/START UP On Flash Once &
then Off
Off Single Beep and then
Off
Operate
Start-Up Test Fail Off Off On Continuous for 15 Sec
and then Off
Will Not Start
Input Frequency Mismatch
with Option Switch Setting
Overload/Short Circuit
Off
On for 15 Sec
and then Off
Flash
Continuous for 15 Sec
and then Off
Will Not Start
Input Voltage Below
Threshold Off Off Flash Continuous for 15 Sec
and then Off
Will Not Start
NORMAL MODE On Off Off Off Operate
Battery Test Fail On Off On N/A Operate
Overpower On Off Flash Fast Beep Alarm Only
Overload/Short Circuit Off On for 15 Sec
& then Off
Flash for 15
Sec & then Off
Continuous for 15 Sec
& then Off
Shutdown
Charger Fail On Off On Slow Beep Alarm Only
BACKUP MODE Off On Off Slow Beep Operate
Low Battery Alarm Off On On Fast Beep Operate
Low Battery Shutdown Off On* On* Continuous for 15 Sec
& then Off
Shutdown
Mains Undervoltage Off On Off Slow Beep Operate
Mains Overvoltage Off On Flash Slow Beep Operate
Overload/Short Circuit
SiteNet 1 Shutdown Off On* Flash* Continuous for 15 Sec
& then Off
Shutdown
*If there is insufficient utility voltage, this indicator illuminates for 15 seconds then turns off to preserve the battery.