Best Power UNITY/I UT310 Manual Del Usuario página 19

Alarm Message
Mains freq. is out of
tolerance
Mains is moment. out
of tolerance
(This alarm is normal
during a power
outage.)
Mains is out of
tolerance
(This alarm is normal
during a power outage.
OFF Button Pushed
(If the alarm was
caused by the Off
button, it will only
appear in the events
log.)
Output freq. is out of
tolerance
Output is moment. out
of tolerance
What It Means
The mains (AC input) frequency is out of
tolerance (see the Glossary). The unit
transfers to battery operation. If mains
frequency comes back within tolerance, the
unit transfers back to normal operation. If
not, the unit continues to run on battery until
"Low DC shutdown." Then, if bypass is
within tolerance, the unit transfers to bypass.
If not, the unit transfers to standby and does
not supply output voltage.
The mains (AC line voltage) was
momentarily too high or too low. The unit
transfers to battery; if mains returns within
tolerance, the unit transfers back to normal
operation.
The mains (AC input) voltage is too high or
too low, so the unit transfers to battery
operation. If AC input returns to normal, the
unit transfers back to normal operation. If
not, the unit continues to run on battery until
the "Low DC shutdown" alarm. Then, if
bypass voltage is within the range
programmed into the UPS, the unit transfers
to bypass. If not, the unit transfers to standby
and does not supply output voltage.
A user pushed the red "Off" button or
activated an emergency power off shutdown.
The unit switches to standby mode and does
not supply output voltage.
The output frequency is too high, low, or
unstable (out of tolerance). The unit transfers
to battery operation and runs on battery until
the "Low DC shutdown" alarm. Then, the
unit transfers to bypass if bypass is within
tolerance. If not, the unit transfers to standby
and does not supply output voltage.
The output voltage was momentarily too high
or too low (out of tolerance). If bypass is
within tolerance, the unit transfers to static
bypass operation. If not, the unit transfers to
standby and does not supply output voltage.
Ask an electrician to make sure that the
correct input frequency is available to the
UPS. The electrician must correct any
problems in input frequency. If input
frequency is correct, phone BEST's
Worldwide Service.
If possible, restore AC input power to the
UPS. If AC input is available to the UPS,
ask an electrician to make sure that 1) the
correct input voltage is available to the
UPS, and 2) this voltage is within a range
the UPS will accept.
If possible, restore AC input power to the
UPS. If AC input is available to the UPS,
ask an electrician to make sure that 1) the
correct input voltage is available to the
UPS, and 2) this voltage is within a range
the UPS will accept.
Restart the unit by pressing the green
button inside the door. If the unit will not
restart, the alarm was caused by an
emergency power off (EPO) shutdown.
Find out why this shutdown was
activated and make sure the
emergency no longer exists; then, you
can restart the unit by deactivating the
emergency power off shutdown.
Ask an electrician to make sure that the
correct input frequency is being supplied
to the UPS. Then, phone BEST's
Worldwide Service.
If other alarms are also active,
troubleshoot these alarms first. If this is
the only alarm, phone BEST's
Worldwide Service.
17
What to Do