115
6.1.3.
How to Handle Protection Messages
When the converter starts a protection operation due to an abnormality while it operates, you should follow
instructions in the seven-segment display to take actions listed below.
■
Common to all models
Display
Cause
Where to check and how to take
actions
Reference
The output electrical wire was
grounded or short circuited.
Check the wiring of the output
electrical wire.
3.3 How to Connect
Converter
Load capacity is abnormally
large.
・
Reduce load.
・
Check and review the converter
model.
Operation level setting is
inappropriate.
Review the operation level setting
value.
Combination between the
converter and inverter on the
motor control side is
inappropriate.
Use a correct combination between
the converter and inverter on the
motor control side.
Display
Cause
Where to check and how to take
actions
Reference
Ambient temperature becomes
high.
・
Check the installation
environment.
・
Check whether temperature
inside the control panel rises or
not.
3.1.2 How to
Install Converter
Cooling space of the converter
is not enough.
Keep enough cooling space.
3.1.2 How to
Install Converter
The installation direction of
the converter is not correct.
Install it in the correct
direction.
3.1.2 How to
Install Converter
The output electrical wire was
grounded or short circuited.
Check the wiring of the output
electrical wire.
3.3 How to Connect
Converter
IGBT is damaged.
Check whether IGBT works properly
or not (continuity check).
The cooling fan fails.
Replace the cooling fan.
7.3 How to Replace
Cooling Fan
The wind of the cooling fan blows
in the reverse direction.
Install it so that the wind blows
in the correct direction.
7.3 How to Replace
Cooling Fan
The gate board <GAC66>
malfunctions.
Replace the gate board <GAC66>.
Display
Cause
Where to check and how to take
actions
Reference
(This is not a display for
protection.)
The multifunction terminal
specified for the emergency stop
(normally open) has been turned
ON.
(This is not a display for
protection.)
The multifunction terminal
specified for the emergency stop
(Normally closed) has been turned
OFF.