48
Para Cable Female
Loss
The parallel cable is
disconnected
Check the parallel cable.
Para Bat Differ
The battery packs of
some UPSs are
disconnected
Check if all the battery pack is
connected.
Para Byp Differ
The M2 bypass input
of some UPSs is
disconnected
Check the building wiring and
input cable.
Check if the M2 breaker is
closed.
Ensure the UPSs are
connected to same input
source.
Para Line Differ
The M1 line input of
some UPSs is
disconnected
Check the building wiring and
input cable.
Check if the M1 breaker is
closed.
Ensure the UPSs are
connected to same input
source.
Para Work Mode Differ There are different
power strategy setting
in parallel system
The UPSs with different power
strategy setting (Ex. one Line
mode and one Converter mode)
are forbidden to parallel.
Para Rate Power Differ There are different
UPSs in parallel
system
The UPSs with different
capacity (Ex. one 10KVA and
one 20KVA) are forbidden to
parallel.
ECO In Para
HE function is enabled
in parallel system
HE function is forbidden in
parallel system.
7.2 Trouble Shooting According To Fault Indication
Problem
Displayed
Possible cause
Remedy
Inv Overload Fault
Overload
Check the loads and remove some
non-critical loads.
Check if some loads are failed.
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