27
EN
Symptom
Possible cause
Remedy
The icon
and warning code
flash on LCD display and alarm beeps
every second.
Loose parallel communication
cable
or
incorrect
parallel
operation.
For parallel system, make sure
parallel communication cable is
connected tightly and also check
if the PRA ID number is right after
turning on input breakers one by
one. If all the number displays
are correct, it’s ok to turn on
UPSs after disabling the warning
message by pressing ‘UP’ and
‘DOWN’
button
together.
Otherwise, please do NOT turn
on UPSs and contact your dealer
for help.
For single UPS, since there is no
communication cable and parallel
output cable connection, simply
ignore this warning message by
pressing ‘UP’ and ‘DOWN’ button
to disable and turning on UPS for
continuous operation.
