39
Chapter 5 Fault Protection and Disply and Trobleshotting
a: Description:
The drive has well protection functions to protect drive and motor when faults
occur. When the fault occurs, the drive trips by the protection functions and
display fault message on keypad. After the fault is troubleshooted, reset the
drive by pressing
OFF
RESET
of keypad or command the drive to reset through
multi-function input terminals by an external reset signal
b: Protection and Troubleshooting List:
Error Trip Messages of Drive
Display
Description
Cause
Troubleshooting
(EEr)
RUN
CRG
MAIN
SV
PV
EEPROM error
●EEPROM data
write fault.
●EEPROM
component
defected.
●Please reset all
parameters to
default value and
restart the drive.
●Return the drive to
repair,when the fault
can’t be eliminated.
(Fot)
RUN
CRG
MAIN
SV
PV
IGBT module
error
●Error on the drive
power system.
●Drive outputs fault
current.
●High temperature
on IGBT module.
Return the drive to
repair when reset
command from
multi-function input
terminal or “
STOP
RESET
” are
useless.
(AdEr)
RUN
CRG
MAIN
SV
PV
A/D converter
error
●A/D converter
defected.
Please call customer
service for drive
repair.
(LE1)
RUN
CRG
MAIN
SV
PV
Under voltage
during operation
The internal DC
bus voltage level is
below 70%.
●Phase failure of
input power.
●Instantaneous
power off.
●Voltage variation
of power source is
too high.
●Motor with instant
overload causing
the high voltage
drop.
Increase the power
capacity
