A-TS
80
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Table 8-2 Operation Related Faults and Solutions
Phenomena
Conditions
Possible reasons
of fault
Actions
No response
of keys
Part of the keys or
all the keys are
disabled
Keypad locked
In stop or operating
state, keep pressing
FUNC/DATA key, when
pressing
▼ key three
times.
Power off the inverter
and then power on again
Panel cables are not
well connected
Check the wiring
Panel keys are
damaged
Replay operation panel
or seek service
LED no
display
No LED
segmentilluminates
Not power on.
Power on
Keypad cable
reverse connected
Immediately remove the
keypad and connect it
again correctly. If the
problem persists, please
connect our technical
support person.
Parameter
setting
cannot be
changed
Cannot be
changed during
operating
Parameter
modification
property is ×”
Settings of parameters
can be changed in stop
status
Settings of part of
parameters cannot
be changed.
Set PP.01 to 1 or 2
Set PP.01 to 0
Parameter
modification
property is *
The parameters cannot
be changed by user
No parameter
but“0.0.0.0.” is
displayed when
pressing PRG
User password is
required
Input correct user
password
Seek service
Unexpected
stops during
running
The inverter stops
automatically
without STOP
command. The
RUN indicator
goes out.
Alarm occurs
Find out the reason and
reset.
Single cycle of PLC
finishes
Check PLC configuration
Interruption of the
communication
between the inverter
and host or flush
mount faceplate
Check communication
cables and PB.02, PB.03
settings
Power failure
Check the power supply