10-10
LED display
Description
Cause
Possible solutions
OL1
Motor
overload
Internal motor overload protection
tripped, active when protection curve
08-05 = xxx1.
Voltage setting V/F mode too
high, resulting in
over-excitation of the motor.
Motor rated current (02-01)
set incorrectly.
Load too heavy.
Check V/f curve.
Check motor rated current
Check and reduce motor load,
check application duty cycle.
OL2
Inverter
overload
Inverter thermal overload protection
tripped. If an inverter overload
occurs 4 times in five minutes, it is
required to wait 4 minutes before
resetting the fault.
Voltage setting V/F mode too
high, resulting in
over-excitation of the motor.
Motor rated current (02-01)
set incorrectly.
Load too heavy.
Check V/f curve.
Check motor rated current
Check and reduce motor load,
check application duty cycle
CE (flash)
communication
error
No Modbus communication received
for 2 sec. Active when 09-07=3.
Connection lost or wire
break.
Host stopped
communicating.
Check connection
Check host computer / software.
Over current
protection
level B
Inverter current reaches the current
protection level B.
Inverter current too high.
Load too heavy.
Check load and application duty
cycle.
Retry (flash)
retry
Automatic reset activated, warning is
displayed until restart delay time set
(07-01) expires.
Parameter 07-01 set to a
value greater than 0.
Parameter 07-02 set to a
value greater than 0.
Warning disappears after
automatic reset.
