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E6581160
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9
9. Before making a service call
- Trip information and remedies
9.1 Trip causes/warnings and remedies
When a problem arises, diagnose it in accordance with the following table.
If it is found that replacement of parts is required or the problem cannot be solved by any remedy described in the
table, contact your Toshiba dealer.
[Trip information]
Error code Failure code Problem Possible causes Remedies
QE
QER
0001
0025
Overcurrent during
acceleration
Overcurrent flowing
in element during
acceleration
• The acceleration time CEE is too short.
• The V/F setting is improper.
• A restart signal is imput to the rotating
motor after a momentary stop, etc.
• A special motor (e.g. motor with a small
impedance) is used.
• Increase the acceleration time CEE.
• Check the V/F parameter.
• Use H (auto-restart) and H
(ride-through control).
• Adjust the carrier frequency H.
• Set the carrier frequency control mode
selection parameter f316 to 1 or 3
(carrier frequency decreased
automatically).
QE
QER
0002
0026
Overcurrent during
deceleration
Overcurrent flowing
in element during
decelearion
• The deceleration time FGE is too short. • Increase the deceleration time FGE.
• Set the carrier frequency control mode
selection parameter f316 to 1 or 3
(carrier frequency decreased
automatically).
QE
QER
0003
0027
Overcurrent during
constant speed
operation
Overcurrent flowing
in element during
operation
• The load fluctuates abruptly.
• The load is in an abnormal condition.
• Reduce the load fluctuation.
• Check the load (operated machine).
• Set the carrier frequency control mode
selection parameter f316 to 1 or 3
(carrier frequency decreased
automatically).
ER
ER
ER
0025
0026
0027
Ground fault trip
Arm overcurrent at
start-up
(for 11 and 15 kW
models only)
• A current leaked from an output cable or
the motor to ground.
• A main circuit elements is defective.
• Check cables, connectors, and so on for
ground faults.
• Make a service call.
QEN
0004 Overcurrent (An
overcurrent on the
load side at start-up)
• The insulation of the output main circuit or
motor is defective.
• The motor has too small impedance.
• A 11 or 15 kW model was started,
although a current is leaked from an
output cable or the motor to ground.
• Check the cables and wires for defective
insulation.
• When using a 11 or 15 kW model, check
cables, connectors, and so on for ground
faults.
QEC
0005 Arm overcurrent at
start-up
• A main circuit elements is defective. • Make a service call.
*
GRJ
0008 Input phase failure
• A phase failure occured in the input line of
the main circuit.
• The capacitor in the main circuit lacks
capacitance.
• Check the main circuit input line for phase
failure.
• Enable H (input phase failure
detection).
• Check the capacitor in the main circuit for
exhaustion.
*
GRJQ
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).
* You can select a trip ON/OFF by parameters.
(Continued overleaf)