Troubleshooting; Guide To Status Indicators - Liebert 350-500 VA User Manual

T
ROUBLESHOOTING
The information below indicates various symptoms a user may
encounter in the event the PowerSure PST experiences a problem. Use
this information to determine whether external factors caused the
problem. See Troubleshooting Chart for suggested remedy.
Fault Utility/Battery
Indicator Indicator
Site Wiring
Fault Indicator

Guide to Status Indicators

Fault
(Red)
!
Normal Mode
—
—
—
Flashing
ON
Flashing
ON
Battery Mode
—
—
Flashing
ON
1. The Fault Indicator illuminates, indicating
the UPS detected a problem.
2. An alarm sounds, alerting that the UPS
requires attention. The alarm can be
silenced except for low battery and overload
warning conditions.
3. Utility/Battery Indicator may be illumi-
nated as a diagnostic aid to the operator, as
shown below:
Site Wiring Utility/Battery
Fault (Amber)
—
—
Flashing
—
—
—
—
—
—
—
—
(Green)
-
+
UPS is operating in Normal
ON
Mode; no beep.
Battery Test has been initiated;
Flashing
no beep.
ON Site Wiring Fault; no beep.
The unit is overloaded; beep
ON
every half-second
The UPS has failed;
ON
continuous beep
Unit has shut down due to
—
overload; continuous beep
The UPS shut down due to
—
failure; continuous beep
The UPS is operating in
Flashing Battery mode; beep every 5
seconds.
Flashing UPS battery is low; beep every
half-second
Flashing The unit is overloaded; beep
every half-second
The UPS has failed;
Flashing
continuous beep
15
Diagnosis/
Audible Alarm