Unity I UT3K Manuel D'utilisation page 13

Table 2: Alarms (continued)
Alarm Alarm
Code
A-08 Low Battery
(Advisory Condition)
A-09
Check Fan
A-10 Reserved
Batteries Disconnected
A-11
A-12
Tap Regulator Alarm
A-13 Low AC Out
Shutdown
A-14
High AC Out
Warning/Shutdown
Check MOVs
A-15
A-16 Auto Bypass
(Advisory Condition)
A-17
Check Fuse Board
A-18 Reserved
A-19 Check Power Supply
What It Means
Battery voltage is too low for
the UPS to operate on battery
power.
The fan inside the UPS is not
functioning properly.
—
The batteries are not properly
connected.
There is a problem inside the
unit.
The UPS AC output voltage is
low.
The UPS AC output voltage is
high.
The UPS has detected a problem
with a MOV (Metal Oxide
Varistor) inside the unit.
The UPS is in internal bypass
mode. If AC line is present, the
UPS continues to provide power
to the connected equipment, but
it does not regulate the power
going to the connected
equipment, and it will not
provide battery backup power.
The UPS has detected a possible
problem with the fuse board.
—
The unit has detected a possible
problem with the internal power
supply.
11
What to Do
Before this code is displayed, you should have
received a "00" (Low Runtime) alarm to warn
you to shut down your equipment. When
acceptable AC input power returns, the UPS will
automatically restart (unless you have set
parameter 03 to disable the auto restart feature).
When the UPS restarts, it will temporarily run in
a bypass (nonregulating) mode (see A-16).
Codes A-08 and A-16 will display until the
battery voltage returns to above 48VDC for 2
minutes. Runtimes will remain low until the unit
fully recharges the batteries.
Phone Best Power's Worldwide Service or the
nearest Best Power office.
—
Phone Best Power's Worldwide Service or the
nearest Best Power office.
Phone Best Power's Worldwide Service or the
nearest Best Power office. Note: If the UPS
begins running on battery power, monitor the
runtime so that you may do an orderly shutdown
of your equipment if runtime gets low.
Phone Best Power's Worldwide Service or the
nearest Best Power office.
The UPS will shut down. Phone Best Power's
Worldwide Service or the nearest Best Power
office.
Phone Best Power's Worldwide Service or the
nearest Best Power office.
If the UPS also has an A-08 alarm, see A-08,
Low Runtime, in this table.
If the UPS is in internal bypass (battery
maintenance) mode because parameter 63 has
been enabled, the UPS will display A-16 until
you reset parameter 63 to "0."
Phone Best Power's Worldwide Service or the
nearest Best Power office.
—
Phone Best Power's Worldwide Service or the
nearest Best Power office.
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