Powervar ACE Series, User Manual

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ACE Series Rack-Mount • 05145651A 21
S E C T I O N 5
T
ROUBLESHOOTING
This section explains:
œ
How to recognize the symptoms of UPS problems
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The possible causes of UPS problems
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How to correct UPS problems.
Table 3. Troubleshooting Guide
Symptom Possible Cause What To Do
LED 16 is not on; the UPS will
not start. A circuit breaker or an input fuse on the rear
panel is open. Push the circuit breaker button or replace the fuse (see Appendix
C, UPS Rear Panels).
The line cord is not connected. Connect the line cord.
The wall outlet is dead. Have a qualified electrician test and repair the outlet.
The UPS may be unable to recognize a
100 V, 50 Hz wall outlet. See Appendix B, Specifications, to verify that your UPS accepts
100 V nominal input.
Unplug the UPS. Start the UPS on battery and reconfigure the
nominal input voltage for 100 V (see Section 3, Configuration).
Turn the UPS off for 3 seconds. Plug the UPS into an outlet.
A battery fuse or circuit breaker is open. Contact your service representative.
The UPS switches frequently
between battery and AC input. Input voltage in your area differs from the
UPS nominal. Change the UPS nominal input to match your local nominal; see
Section 3, Configuration.
The Low Battery Alarm does not
give enough warning. The batteries need charging or service. Plug the UPS into a wall outlet for 24 hours, to charge the battery;
press the Test/Alarm Reset button for three seconds; then check
LED 10 (Battery Service).
The Low Battery Alarm is not set
appropriately. Change the alarm setting. See Section 3, Configuration.
LED 1 (AC Input, High) or
LED 4 (AC Input, Low) are on. The line voltage is too high or too low; the
UPS is running on battery power. Correct the input voltage, if possible, or be prepared for a power
failure less than 5 minutes after LED 9 turns on (depending on
configuration, with normal load and ample charge).
If LED 1 or LED 4 are on continuously, the input voltage in your
area may differ from the UPS nominal. Change your UPS to match
your local conditions. See Section 3, Configuration, for more
information.
continued