Teze TW-EOR48 - Protection Features and Maintenance; PV Input Protection Features; AC Input and Battery Protection; Output and Heat Sink Protection

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43
set in the parameter
[12].
that the battery voltage is higher than the
value set in the parameter item [35].
06
Battery over-voltage
when charging
Battery is in over-
voltage condition.
Manually power off and restart.
Check to see if the battery voltage exceeds
the limit. If it exceeds, the battery needs
to be discharged until the voltage is below
the battery's over-voltage recovery point.
13
Bypass over-load
(software detection)
Bypass output power
or output current
overload for a certain
period of time.
Reduce the load power and restart the
device. Please refer to item 11 of the
protection features for more details.
14
Inverter over- load
(software detection)
Inverter output
power or output
current overload for a
certain period of
time.
19
Heat sink of PV input
over-temperature
(software detection)
Heat sink of PV input
temperature exceeds
90
℃
for 3s.
Resume normal charge and discharge
when the temperature of the heat sink
has cooled to below the over-temperature
recovery temperature.
20
Heat sink of inversion
over-temperature
(software detection)
Heat sink of inversion
temperature exceeds
90
℃
for 3s.
21
Fan failure
Fan failure detects by
hardware for 3s.
Manually toggle the fan after switching off
to check for blockage by foreign objects.
26
AC Input relay short-
circuit
Relay for AC input
sticking
Manually power off and restart; if the
fault reappears after restarting, You need
to contact the after-sales service to repair
the machine.
28
Utility input phase
fault
AC input phase does
not coincide with AC
output phase
Ensure that the phase of the AC input is
the same as the phase of the AC output,
e.g. if the output is in split-phase mode,
the input must also be in split-phase.
If you encounter a fault with the product that cannot be solved by the methods in the table above,
please contact our after-sales service for technical support and do not disassemble the equipment
yourself.
9. Protection and Maintenance
9.1 Protection features
No
Protection Feature
Instruction
1
PV input current/power
limiting protection
When the charging current or power of the PV array configured
exceeds the PV input rated value, the inverter will limit the input
power and charge at the rated.
2
PV input over-voltage
If the PV voltage exceeds the maximum value allowed by the
hardware, the machine will report a fault and stop the PV boost
to output a sinusoidal AC wave.
3
PV night reverse current
protection
At night, the battery is prevented from discharging through the
PV module because the battery voltage is greater than the