NXRT
‐
1000,
NXRT
‐
1500,
NXRT
‐
2000,
NXRT
‐
3000
USER’S
MANUALUNINTERRUPTIBLE
POWER
SUPPLY
(UPS)
TROUBLESHOOTING
Issue
Audible
Alarm
Alarm
Description
What
You
Should
Do
The
“Input”
letters
in
the
second
row
of
the
LCD
are
flashing
Two
Beeps
per
second
at
startup
for
8
total
seconds
The
Input
Voltage
or
frequency
may
be
beyond
the
normal
acceptable
range.
Verify
that
utility
voltage
and
frequency
is
within
acceptable
range.
If
so,
contact
support.
The
“Input”
letters
in
the
second
row
of
the
LCD
are
flashing
One
beep
per
2
minutes
Possible
mis
‐
wiring
AC
line
and
neutral
line
Check
wiring
of
input
to
UPS
(reversed
wiring,
etc)
Rewire,
if
necessary
Battery
Indicator
Flashing
One
beep
per
second
Batteries
are
undercharged,
disconnected
or
need
to
be
replaced.
Check
UPS
batteries.
If
necessary
reconnect
batteries,
wait
12
hours
to
charge
or
replace
defective
batteries
Utility
Normal
‐
UPS
has
no
AC
input
N/A
Possibility
that
circuit
breaker
on
UPS
has
tripped
Reset
circuit
breaker
Insufficient
battery
run
‐
time
Once
every
4
seconds
in
DC
mode
“On
batt”
displayed
on
LCD
1.
If
batteries
are
undercharged
let
UPS
charge
batteries
at
least
12
hours
2.
After
charging,
if
runtime
is
still
insufficient,
replace
with
new
batteries
3.
Reduce
output
load
to
lengthen
runtime
UPS
will
not
start
after
pressing
the
“On/Off”
button
N/A
1.
Insufficient
time
for
button
depression
2.
UPS
has
no
battery
connected
3.
Battery
voltage
is
too
low
to
power
the
load
4.
Fault
has
occurred
inside
the
UPS
1.
Depress
the
“On/Off”
button
for
at
least
three
seconds
2.
Make
sure
the
batteries
are
connected
and
the
connector
on
the
battery
cartridge
is
“mated”
correctly
3.
Plug
the
UPS
in,
remove
all
loads,
and
allow
to
charge
for
12
hours
4.
Contact
dealer
for
service
details
Major
fault
detection
by
the
UPS
Constant
beep
Type
of
fault
and
fault
code
displayed
on
LCD.
Review
abnormal
process
information
table
listed
below
in
this
manual
and
take
appropriate
action,
If
problem
does
not
resolve
contact
supplier
for
service
and
provide
error
code(s)
[29]
Summary of Contents for NXRT?1000
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Page 40: ...NXRT 1000 NXRT 1500 NXRT 2000 NXRT 3000 USER S MANUALUNINTERRUPTIBLE POWER SUPPLY UPS 40 ...
