11
Troubleshooting
There is no AC power
There is no AC power and the UPS is
off
Use the cold start feature to supply power to the connected equipment from
the UPS battery(s).
Press and hold the Test button. The unit will emit two beeps, one short beep
and one long beep. Release the button during the second beep.
UPS operates on battery although line voltage exists
The UPS input circuit breaker trips. Unplug all nonessential equipment from the UPS.
Reset the circuit breaker.
Your system is experiencing very high,
low or distorted line voltage.
Move the UPS to a different outlet on a different circuit: Inexpensive fuel
powered generators may distort the voltage. Test the input voltage with the
AC voltage display, (see Operation). If acceptable to the connected
equipment, reduce the UPS sensitivity.
Battery Charge and Load LEDs flash simultaneously
The UPS has shut down
The internal temperature of the UPS has
exceeded the allowable threshold for
safe operation.
Check that the room temperature is within the specified limits for operation.
Check that the UPS is properly installed, allowing for adequate ventilation.
Allow the UPS to cool down. Restart the UPS.
Diagnostic AC voltage
All five LEDs are illuminated. The line voltage is extremely high and should be checked by an electrician.
There is no LED illumination. If the UPS is plugged into a properly functioning AC power outlet, the line
voltage is extremely low and should be checked by an electrician.
On-Line LED
There is no LED illumination. The UPS is running on battery, or it must be turned on.
The LED is blinking. The UPS is running an internal self-test.
Software/Network integration problems
Network Management Card difficulties. Refer to the Network Management Card user guide on the CD shipped with
the Network Management Card.
Communication problems between the
UPS and PowerChute
™
software.
Ensure the correct communication cable (940-1524D) is being used.
Refer to the PowerChute
™
user manual on the CD shipped with the software.
Problem and/or Possible Cause Solution
(6 pages)
(15 pages)
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