7-9
Fault
display
Probable cause and remedyFault name and Meaning
(flashing)
Emergency stop (STP)
The Digital Operator stops
operating.
The STOP/RESET Key on the
Digital Operator is pressed
while the Inverter is operating
according to the forward or
reverse command through the
control circuit terminals.
Note The Inverter stops ac-
cording to the method set
in n04.
•The parameter setting was incorrect.
→ Turn off the forward or reverse
command once, check that the n06
parameter setting for STOP/RESET
Key function selection, and restart the
Inverter.
The emergency stop alarm
signal is input as multi-function
input.
A multi-function input 1, 2, 3, or
4 set to 20 or 22 has been
used.
Note The Inverter stops ac-
cording to the method set
in n04.
•An emergency stop alarm is input to a
multi-function input.
→ Remove the cause of the fault.
•The sequence is incorrect.
→ Check and change the external fault
input sequence including the input
timing and NO or NC contact.
fRn
(flashing)
Cooling fan fault (FAN)
The cooling fan has been
locked.
•The cooling fan wiring has a fault.
→ Turn off the Inverter, dismount the fan,
and check and repair the wiring.
•The cooling fan in not in good condition.
→ Check and remove the foreign
material or dust on the fan.
•The cooling fan is beyond repair.
→ Replace the fan.
Maintenance Operations Chapter
7
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