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Chapter 5
Chapter 5 Troubleshooting
5.1 Error events
Next are the descriptions of the basic errors that may
occur. For more information, contact to your supplier or
local Hitachi inverter sales office.
■Trip event screen
Alarm lamp
is blinking
■Action when an error occurs
Code
Details
By the load or the operating
E001
conditions, overcurrent has
occurred.
By the load and the operating
E005
conditions, current has
E039
increased.
Braking resistor use is
E006
limited.
The inverter's P-N voltage has
increased due to the
E007
regenerative voltage during
sudden deceleration and
lowering of the motor.
E008
Main CPU abnormality.
E011 *1)
E009
Main circuit supply has drop.
E010
Current detector
*1)
abnormality.
E012
Input terminal 033[EXT] is ON.
While
the
input
034[USP] was ON and the RUN
E013
command is input state, the
main power supply was turned
ON.
E014
Ground fault is detected at
main power supply turned ON.
*1)
The main power supply
E015
voltage has been continuously
above the limit.
The control circuit power
supply was off due to
E016
instantaneous power supply
failure.
*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].
・If the acceleration is fast, increase the acceleration time.
・Use the overcurrent suppression function.
・Use the overload restriction function.
・Use the overcurrent retry function.
・In order to stabilize the control, Try auto-tuning for motor constants.
・ If the acceleration is fast, increase the acceleration time.
・Use the overload restriction function.
・If the motor sound is abnormal, in order to stabilize the control, adjust the
motor constant by trying auto-tuning.
・If the deceleration is fast, increase the deceleration time.
・Reselection of the braking resistor is necessary.
・If the deceleration is fast, increase the deceleration time.
・Use the overvoltage suppression functions.
・Use the overvoltage retry function.
・Use the regenerative braking option.
・Carry out counter measures for the inverter noise.
・If it occurs consecutively, there is a possibility of inverter failure.
・To disable the under-voltage error, change setting.
・Use the under-voltage retry function.
・Carry out counter measures for the inverter noise.
・ If it occurs consecutively, there is a possibility of inverter failure, and parts
replacement might be required.
・Check the signal status of the input terminal.
・Check if there are no operations by communication or EzSQ program.
terminal
・Make sure that an RUN command is not introduced at the time of turning
ON the inverter.
・Check insulation deterioration and ground fault of the motor, the
wiring and etc..
・Review the power circumstances, such as the power supply
capacity.
・If avoiding this trip is required, use the power loss retry function.
Corrective actions
5-1
Troubleshooting
Related
parameter
[AC120]
[bA120]
[bA122]
[bb-22]
[HA-01]
[AC120]
[bA122]
[HA-01]
[AC122]
[bA-60]
[AC122]
[bA140][bA146]
[bb-23]
-
-
-
[bb-27]
[bb-21]
-
-
[dA-51]
-
[dA-51]
-
[dA-40]
[bb-20]
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