Senlan Hope800 Series Manual page 144

7 Troubleshooting
Fault code Fault type
Er.oLL(15) Motor overload
External fault
Er.EEF(16)
Motor load
overweight
Er.oLP(17)
Er.ULd(18)
Comparator 1
Er.Co1(19)
Comparator 2
Er.Co2(20)
Parameter saving
Er.EEP(21)
Communication
Er.CFE(22)
Current test
Er.ccF(23)
auto-tuning
Er.ArF(24)
140
Running motor restarted
Input voltage too low
V/F curve improper
The common motor runs with heavy
load at low speed for a long time
Improper setting of nameplate
parameters or overload protection
Motor stalls or load changes suddenly
and greatly
External fault terminal closed
Motor current exceeds the load
overweight detection level, and the
detection time is exceeded
Inverter output current is less than the
Inverter
underload protection level, and the
underload
detection time is exceeded
Generated by comparator 1
output
protection
signal
Generated by comparator 2
output
protection
signal
Failure in writing parameters
failed
Improper setting of communication
parameters
error
Serious communication interference
PC does not work
Loose wiring or components inside
the inverter
error
failed current sensor or circuit error
Incorrect setting of motor nameplate
Poor
parameters
Motor not connected or motor phase
lost
Motor not in no-load state during
rotary auto-tuning
Oscillation of auto-tuning
Possible causes Remedies
Set the restart mode as "smooth
restart" or "restart after motor
stops"
Check the input voltage
Correctly set the V/F curve and
torque boost level
Install a separate cooling fan or
select a motor designed for
inverter
Set FA-03, Fb-00 and Fb-01
correctly
Check the load
Deal with the external fault
Check the load
Check the setting of load
overweight protection
Check the load
Check the setting of underload
protection
Check the definition of
comparator 1 output
Check the definition of
comparator 2 output
Retry after reset. Call us if
problem still exists.
Check the settings of FF menu
Check the wiring and grounding
of the communication circuit
Check PC and wiring
Check and rewire
Call us
Set the parameters according to
the motor nameplate
Check the motor wiring
Disconnect the motor from the
mechanical load
Adjust F2-09