21
L I N E
O R D E R
E R R
3phase A,B,C(R,S,T) not in
right order
Check the lines
P N
B U S
F A U T
Positive and negative of Bus
fault
Check the bus
6.2
6.2
6.2
6.2
Simple
Simple
Simple
Simple problem
problem
problem
problem phenomena
phenomena
phenomena
phenomena and
and
and
and solutions
solutions
solutions
solutions
Abnormal
Abnormal
Abnormal
Abnormal
phenomenon
phenomenon
phenomenon
phenomenon
Fault
Fault
Fault
Fault diagnosis
diagnosis
diagnosis
diagnosis
Solutions
Solutions
Solutions
Solutions
Alarming
when
connect the battery
Battery
anode
and
cathode
connection
in
reverse
Checking
and
reconnect
Fans stop running
Fans failed or board of fan
damaged
Contact
with
technician
for
repair
UPS not start when
turn on UPS
Switch failed
Check switch
Power supply board failed
Contact
with
technician
for
repair
UPS no output when
there is no mains
Battery switch didn’t turn
on or failed
Check switch
Battery
capacity is
not
enough to support power
Contact
with
technician
for
repair
UPS
can
not
get
normal
communication
Communication
software
was
set wrong or the
communication
cable
is
fault
Reset or replace
the cable.
UPS don’t start up in
mains
and
UPS
works
normally
in
battery
Charging board has fault
Checking if input
fuse of charging
board are failed
