Fault code
Fault content
Solutions
Check if there is internal short circuit for the
X19 X1AX1B
loads connected to each phase; check if
X1C X1D X1E
there is short circuit for the output part of
Output short circuit
each inverter power board. After ensuring
that the connections are correct and the fault
icon is removed, restart the UPS.
X25
Physical address
Check the physical addresses of each UPS
conflict
and ensure that they are different.
X26
Model is
Check if the models of each UPS is
incompatible
consistent.
Over temperature
Check if the ambient temperature is too
X27
high; check if the fan is abnormal; check if
inside the UPS
there are objects blocking air-cooling duct.
X28
Check if there is equipment operating in
Overload
overload status.
Check if the bypass phase sequences of
X2D
Bypass wiring error
each UPS in parallel system are completely
consistent; if not, it needs to adjust to be
consistent.
The number of
X2F
battery is
Check if the set battery number is consistent
configured
with the actual number.
incorrectly
Under the situation of non-artificial EPO, it
X38
EPO
needs to check if there is open circuit for the
EPO circuit.
Note:
Contact the supplier if display screen shows other fault information. After
troubleshooting, power-up need to enter menu setting interface to configure CHK OFF,
refer to 4.2.9 for operation details.
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