*1) As a major failure error, the output terminal function [MJA] turns
ON. And these errors could not be canceled with input terminal
028[RS]. However the E020 error can be reset after the inverter
temperature drops down.
*2) For SH1 series, function safety is invalid.
※For others errors not shown above, contact your supplier
or local Hitachi inverter sales office.
■Warning events
※Regarding the warnings, please refer to Page4-8. Fixing the parameter
details shown in the keypad screen may end the warning.
Abnormality in temperature detector
circuit.
・Carry out counter measures for the inverter noise.
・If it occurs consecutively, there is a possibility of inverter failure.
The internal temperature of the
inverter is rising because the rotational
speed of the cooling fan is reduced and
the cooling is insufficient.
・If there is any foreign matter, it may be recovered by removing it.
・The cooling fan is reached its lifetime, and it is needed
replacement.
・Lower the carrier frequency.
Internal temperature has increased.
・Requires a review of the installation circumstances.
・Due to clogging or life of the cooling fan, The cooling fan may
not be operating normally.
・Lower the carrier frequency.
Disconnection of the wiring of the main
power supply side has occurred.
・Check the fastening of the input wiring with screws.
・Check that the 3 phases are correctly inserted.
Sudden increase of current.
・Verify if a ground fault or a cable disconnection/rupture has
occurred at the output wiring.(possible short circuit)
・Check that the motor is not locked.
Disconnection of the wiring in the
motor side has occurred.
・Check the output wiring disconnection, motor insulation failure,
…etc.
・Check that the 3 phases are correctly connected.
Abnormal motor temperature.
・Improve the motor cooling circumstances.
・Use the overload restriction function.
・Check if the thermistor is damaged.
・Check the thermistor settings.
・Check if the brake is damaged and if the wiring for the [BOK]
signal is disconnected.
・Check the brake waiting time.
Increase of current during slow speed
operation.
・If torque is needed during slow speed, a review of the inverter
capacity is necessary.
Keypad disconnection error
・Check for the disconnection of the keypad VOP from the inverter.
・Noise counter-measures are necessary.
RS485 communication error
・Noise counter-measures are necessary.
・Check the communication setting.
・Battery replacement for the keypad VOP is necessary
E043 to E045
E050 to E059
There is an error in the EzSQ program.
・For more information, contact your supplier or local Hitachi
inverter sales office.
There is an error in the option.
1:E090 to E093
2:E094 to E097
1:There is an error in the STO path *2)
2:There is an error in the P1-FS. *2)
A disconnection error of the signal line
occurred at P1-FB
・This error related to the feedback option.
For details, contact your supplier or local Hitachi inverter sales
office.
The current position has exceeded the
setting range of [AE-52] and [AE-54] in
position control.
・These are errors related to feedback control.
Review the operating conditions, check the wiring, encoder
settings and other related parameter settings again.
For details, contact your supplier or local Hitachi inverter sales
office.
The speed deviation exceeded "[bb-83]
Speed deviation error detection level".
Position deviation exceeded "[bb-86]
Position deviation error detection
level".
The speed has exceeded "[bb-80]
Over-speed detection level".
A contactor error has occurred
・Re-check [AF120] to [AF123] and wiring etc. of external
contactor.
This error related to the feedback
option
・For details, contact your supplier or local Hitachi inverter sales
office.
This is an error when starting up PID
function.
・Check the wiring and check the parameter settings related to PID
soft start such as [AH-76].
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