Troubleshooting; Table 9 Troubleshooting-Problems, Causes And Solutions - Emerson 3000 User Manual

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9.0
T
ROUBLESHOOTING
The information below indicates various symptoms a user may encounter if the Liebert PSI XR expe-
riences a problem. See Table 9 for suggested solutions.
1. An alarm sounds, alerting that the UPS requires attention. The alarm can be silenced except for
low battery, overload warning and fault.
2. One or more additional indicators will be illuminated to provide a diagnostic aid to the operator,
as described below:
If the UPS fails to operate properly, turn Off the unit and repeat the steps in 3.0 - Installation. If the
problem persists, refer to Table 9.
Table 9
Troubleshooting—problems, causes and solutions
Problem
UPS will not start
UPS starts on battery, but will not
switch to AC (dark start)
UPS shuts down
Site Wiring Fault LED (LED 4) flashing
Battery weak LED (LED 3) flashing
NOTE
The PS2200RT3-120XR UPS will sound an Overload alarm under certain Low Line
conditions when it is fully loaded and it exceeds the input current rating. Unless the load is
reduced, the condition will trip the branch circuit breaker.
Cause
Short circuit
Battery is disconnected or
completely discharged
UPS not plugged in
Circuit breaker tripped
AC overvoltage
Short circuit or UPS output is
abnormal; LED 10 and LED 11
illuminate and sound audible
alarm
Overload; LED 5 and LED 11
illuminate and sound audible
alarm
LED 3 and LED 11 illuminate and
sound audible alarm
Liebert MultiLink software
Site Wiring Fault, UPS detected a
line-to-neutral reversal or a loss of
proper grounding.
Batteries weak
Batteries need to be replaced
26

Troubleshooting

Solution
Check the circuit breaker on the
rear of the UPS.
If it is tripped, reset it and restart the
UPS. For help, contact your local
dealer, local Emerson
representative or Channel Support
Applications.
Check for proper connection of
battery or batteries.
Plug in the power cord securely.
Reset the circuit breaker and restart
the UPS.
Wait until voltage drops to an
appropriate level or have the utility
power checked by a properly
trained and qualified electrician.
Remove the load and turn on the
UPS again. For help, contact your
local dealer, local Emerson
representative or Channel Support
Applications.
Check load level display and
remove nonessential loads.
Recalculate the load and reduce
equipment connected to UPS - the
total wattage must not exceed the
capacity of the UPS.
Recharge the battery for 8 hours,
then turn ON the UPS.
Consult the Liebert MultiLink user
manual or contact your LAN
administrator.
Have the utility checked by a
properly trained and qualified
electrician.
Recharge batteries.
Replace batteries.

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