Hitachi LH1 Series

5-1
Chapter 5
Troubleshooting
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 distributor or service station .
■Trip event screen
■Error events
Code
Details
Corrective actions
Related parameter
E001
・By the load and the operating
conditions, overcurrent has
occurred
・ If the acceleration is fast, increase the acceleration time
[AC120]
・Use the overcurrent suppression function
[bA120]
・Use the overload restriction function
[bA122]
・Use the overcurrent retry function
[bb-22]
・In order to stabilize the control, adjust the constant
[HA-01]
E005
E039
・By the load and the operating
conditions, current has
increased.
・ If the acceleration is fast, increase the acceleration time
[AC120]
・Use the overload restriction function
[bA122]
・If the motor sound is abnormal, in order to stabilize the
control, adjust the constant
[HA-01]
E006
・Braking resistor use is limited.
・If the deceleration is fast, increase the deceleration time
[AC122]
・Reselection of the braking resistor is necessary
[bA-60]
E007
・Internal voltage has increased
・Insufficient capacity of the
inverter
・If the deceleration is fast, increase the deceleration time
[AC122]
・Use the overvoltage suppression functions
[bA140][bA146]
・Use the overvoltage retry function
[bb-23]
・Use a braking option
-
E008
E011
・Main CPU abnormality
・Carry out counter measures for the inverter noise
-
・Consecutive errors may cause a failure
-
E009
・Main circuit supply has drop
・To disable the undervoltage error, change setting
[bb-27]
・Use the undervoltage retry function
[bb-21]
E010
・Current detector abnormality
・Carry out counter measures for the inverter noise
-
・Consecutive errors may cause a failure, replacement of
the components is necessary
-
E012
・[EXT] input terminal is ON
・Check the signal status of the input terminal
[dA-51]
・Check if there are no operations by communication or
programme
-
E013
・[USP] input terminal is ON if at
the start-up, the RUN command
was issued right at the start up
・Make sure that an operation command is not introduced
at the time of turning ON the inverter
[dA-51]

Alarm lamp
is blinking