Chapter 7 Checking and Troubleshooting
G
7-7
Type Cause of Trouble Solution
amount.
Over Heat
There is a problem with the
cooling system.
The inverter has been used
longer than the replacement
cycle of the cooling fan.
The surrounding temperature is
too high.
Check whether there is any
foreign substance in the vent, air
duct or outlet.
ත Replace the inverter cooling fan.
ත Keep the temperature around the
inverter below 50qC.
Over
Current2
Earth of the output cord of the
inverter
There is a problem with the
inverter power switch (IGBT).
Check the output terminal
distribution of the inverter.
ත Inverter operation is impossible.
Contact a near service provider.
NTC Open
The surrounding temperature is
out of the prescribed range.
There is a problem with the
internal temperature sensor of the
inverter.
Keep the temperature around
the inverter below the prescribed
degree.
ත Contact a near service provider.
FAN Trip
There is foreign substance in the
inverter vent where the fan is.
The cooling fan of the inverter
needs replacing.
Check the vent or air outlet.
ත Replace the cooling fan of the
inverter.
IP54 FAN
Trip
Internal fan connector is not
connected.
Internal fan PCB board’s power
connector is not connected.
Inverter cooling fan become to
change period time.
Connect internal Fan connector.
තInternal fan PCB board’s power
connector is connected.
තInverter cooling fan have to
changed.
No Motor
Trip
The motor is disconnected to the
output of inverter.
The current level of detection of
Trip is incorrect.
Check the connection of wiring.
Check the value of parameter
both BAS-13 (Rated current) and
PRT-32 (No Motor Level).
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