Toshiba Single-phase 100V class 0.1 to 0.75kW Marine Battery User Manual


 
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.
The power supply has a
capacity of 200kVA or more.
A power factor improvement
capacitor is opened or closed.
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.
The power supply has a
capacity of 200kVA or more.
A power factor improvement
capacitor is opened or closed.
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)