Rhymebus RM6F5 series, Operation Manual

Page: 144 / 195

Chapter 8 Communication Description
144
8
8-2 Fault Protection Display and Troubleshooting
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)
SV
KEYPAD
PV
Running
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 cannot be
eliminated.
(AdEr)
SV
KEYPAD
PV
Running
A/D converter
error
－－－
Please call customer
service for drive
repair.
(SC)
SV
KEYPAD
PV
Running
Fuse open
●Drive internal fuse
open.
●IGBT power
module damage.
Please call customer
service for drive
repair.
(SC1)
SV
KEYPAD
PV
Running
Short circuit
protection
The output
terminals of drive
are short.
Check wires of
U/T1,V/T2,W/T3
terminals to verify if
there is short
between terminals.
(LE1)
SV
KEYPAD
PV
Running
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 by selecting
higher capacity drive
to avoid the voltage
drop of the power
cord.