E6581090
M-2
13
(Continued)
Error
code
Alarm
code
Problem
Possible causes
Remedies
QR
000B
Overvoltage during
deceleration
•
The deceleration time
FGE
is
too short. (Regenerative
energy is too large.)
•
H
(overvoltage limit
operation) is off.
•
The input voltage fluctuates
abnormally.
①
The power supply has a
capacity of 200kVA or more.
②
A power factor improvement
capacitor is opened or closed.
③
A system using a thyristor is
connected to the same power
distribution line.
•
Increase the deceleration time
FGE
.
•
Enable
H
(overvoltage
limit operation).
•
Insert a suitable input reactor.
QR
000C
Overvoltage during
constant-speed
operation
•
The input voltage fluctuates
abnormally.
①
The power supply has a
capacity of 200kVA or more.
②
A power factor improvement
capacitor is opened or closed.
③
A system using a thyristor 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.
•
Insert a suitable input reactor.
QN
000D
Inverter overload
•
The acceleration time ACC is
too short.
•
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.
•
Increase the acceleration time
CEE
.
•
Reduce the DC braking amount
H
and the DC braking
time
H
.
•
Check the V/F parameter
setting.
•
Use
H
(auto-restart) and
H
(ride-through control).
•
Use an inverter with a larger
rating.
QN
000E
Motor overload
•
The V/F setting is improper.
•
The motor is locked up.
•
Low-speed operation is
performed continuously.
•
An excessive load is applied to
the motor during operation.
•
Check the V/F parameter
setting.
•
Check the load (operated
machine).
•
Adjust
QNO
to the overload
that the motor can withstand
during operation in a low speed
range.
*
GRJ
0009
Output phase failure
•
A phase failure occurred in the
output line of the main circuit.
•
Check the main circuit output
line, motor, etc., for phase
failure.
•
Enable
H
(Output phase
failure detection).
(Continued overleaf)