Hypontech HPT Series, Руководство пользователя

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HPT USER MANUAL 28
8
Inverter
temperature too
high
Heat sink and internal
environment temperature
higher than 85 degree
Please confirm:
⒈Whether the airflow to the heat sink is obstructed.
⒉ Whether the installation site is in direct sunlight and ambient
temperature around the inverter is too high.
If all above is normal, contact the service.
9
Utility grid
disconnected
inverter detected grid voltage
failed
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting that the power grid is normal, and there
is no need to deal with it.
⒉If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal or fuse is in good contact
③whether the power supply line is normal
If this fault is still being shown, contact the service.
10
Grid voltage
exceeds the
permissible range
grid voltage exceeds the
Safety regulations
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting the normal power grid, and there is no
need to deal with it.
2. In case of frequent occurrence but automatic recovery, please
confirm if the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the monitored
operational limits after informing the electric utility company first.
⒊If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal is in good connection
③whether the power supply line is normal
④whether the AC cable wiring (such as wire length and wire
diameter) complies with the user manual guidance
⑤whether the safety regulation settings are normal