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Chapter 7 Checking and Troubleshooting
7-7
Type
Cause of Trouble
Solution
too low.
The inverter has operated for a
long time at a low speed.
properly.
☞
Replace the motor for one that
can separately supply power to
the cooling fan.
Out Phase
Open
Contact trouble of the electronic
contactor of the output side.
Bad distribution of output
☞
Check the electronic contactor of
the output side of the inverter.
☞
Check the output distribution.
In Phase
Open
Contact trouble of the electronic
contactor of the input side
Bad distribution of input
The DC condenser of the inverter
needs replacing.
☞
Check the electronic contactor of
the input side of the inverter.
☞
Check the input distribution.
☞
You should replace the DC
condenser of the inverter. Get
customer service from an
agency.
Inverter OLT
The load of the inverter is bigger
than it’s the inverter rating.
Torque boost is too high.
☞
Raise the capacity of the inverter
and motor.
☞
Reduce the torque boost
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.
☞
Replace the inverter cooling fan.
☞
Keep the temperature around the
inverter below 50
C.
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.
☞
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.
☞
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.
☞
Replace the cooling fan of the
inverter.
IP54 FAN
Trip
Internal fan connector is not
connected.
☞
Connect internal Fan connector.
Содержание SV0008iS7-2
Страница 20: ...Chapter 1 Basics 1 5 ...
Страница 54: ...Chapter 3 Installation 3 28 ...
Страница 181: ...Chapter 8 Table of Functions 8 46 ...
Страница 195: ...Chapter 9 Peripheral Devices 9 14 TYPE 2 Maximum 600 Watt TYPE 3 4 5 A ...