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FOR REFERENCES ONLY
(Continued)
Error code
Failure code
000B
000C
000D
000E
003E
0010
13
0011
(Continued overleaf)
VFNC3C ENGLISH MANUAL
Problem
Possible causes
The deceleration time is too short.
Overvoltage during
deceleration
(Regenerative energy is too large.)
Overvoltage limit operation is set
to , , .
is set to . (Disabled).
The input voltage fluctuates abnormally.
(1) The power supply has a capacity of
200kVA or more.
(2) A power factor improvement capacitor is
opened and closed.
(3) A system using a thyrister is connected
to the same power distribution line.
The input voltage fluctuates abnormally.
Overvoltage during
constant-speed
(1) The power supply has a capacity of
operation
200kVA or more.
(2) A power factor improvement capacitor is
opened or closed.
(3) A system using a thyrister is connected
to the same power distribution line.
The motor is in a regenerative state
because the load causes the motor to run
at a frequency higher than the inverter
output frequency.
The acceleration time ACC is too short.
Inverter overload
The DC braking amount is too large.
The V/F setting is improper.
A restart signal is input to the rotating
motor after a momentary stop, etc.
The load is too large.
The V/F setting is improper.
Motor overload
The motor is locked up.
Low-speed operation is performed
continuously.
An excessive load is applied to the motor
during operation.
The carrier frequency is high and load
Main module
overload
current has increased at low speeds
(mainly at 15Hz or less).
The cooling fan does not rotate.
Overheat
The ambient temperature is too high.
The vent is blocked up.
A heat generating device is installed close
to the inverter.
During automatic operation or remote
Emergency stop
operation, a stop command is entered
from the operation panel or a remote
input device.
M-2
NOT SUBJECTED FOR RESALE
Remedies
Increase the deceleration time .
Decrease the overvoltage stall protection
level .
Set to , , .
Insert a suitable input reactor.
Insert a suitable input reactor.
Install an optional brake resister.
(4004P and 4007P models cannot be used
brake resister.)
Increase the acceleration time .
Reduce the DC braking amount
and the DC braking time .
Check the V/F parameter setting.
Use (auto-restart) and
(ride-through control).
Use an inverter with a larger rating.
Check the V/F parameter setting.
Check the load (operated machine).
Adjust to the overload that the
motor can withstand during operation in a
low speed range.
Raise the operation frequency.
Reduce the load.
Reduce the carrier frequency.
When an operating motor is started up at
0Hz, use the auto-restart function.
Set carrier frequency control mode
selection f316 to 1. (carrier frequency
with automatic reduction).
The fan requires replacement if it does
not rotate during operation.
Restart the operation by resetting the
inverter after it has cooled down enough.
Restart the operation by resetting the
inverter after it has cooled down enough.
Secure sufficient space around the
inverter.
Do not place any heat generating device
near the inverter.
Reset the inverter.
If the emergency stop signal is input,
reset after releasing this signal.
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