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Failure
Failure
No.
code
description
24
E.EEP
EEPROM failure
Relay contact
25
E.dL3
Temperature
26
E.dL2
sensor taking
sample anomaly
27
E.dL1
Reserved
+10V power
28
E.P10
output abnormal
Analog input
29
E.AIF
abnormal
Motor over
30
E.Ptc
temperature(PTC)
Communication
abnormal 1
31
E.SE1
(Operation panel
33
E.VEr
compatibility
abnormal
34
E.CPy
Copy failure
36
E.dl4
Reserved
Terminal mutual
37
E.IoF
exclusion check
110
E5−H High Performance Universal Inverter
Failure
EEPROM reading and writing failure
Loose connection of connectors inside the
inverter
failure
The soft-start circuit is faulty
Ambient under temperature
The temperature sampling circuit inside the
inverter is faulty
Reserved
+10V power overload
+10V power supply and GND is short circuited
+10V power terminal circuit failure
Too high analog input voltage
Analog input circuit failure
Analog input circuit signal interfered
The motor temperature signal reaches the
alarm setting value
Thermistor resistance failure
The sensor protection threshold of the motor is
set improperly
The communication of operation panel RS485
is disconnected
Communication failure of operation panel
RS485
485)
The inverter is set to master mode
Version
Incompatible software version of the operation
panel
The data error occurs when copying the inverter
parameters to the operation panel
The data error occurs when copying the
parameters from the operation panel to the
inverter
The parameters are directly downloaded
without undergoing copy and upload
operations.
Control board software version incompatible
Reserved
The functions of X1 to X4, AI1, AI2 terminals are
set in a repeated manner
failed
Potential causes
Chapter 7 Fault Diagnosis
User Manual
Solutions
Seek for technical support
Ask professional technicians to
maintain
Seek for technical support
Check whether the ambient
temperature complies with the
requirements
Seek for technical support
Reserved
Increase +10V power load
impedance
Utilize externally independent
power supply
Eliminate the short circuit failure
Seek for technical support
Check whether the analog input
voltage complies with the
requirements
Seek for technical support
Increase the P6.22 and P6.24 AI
filtering time
Strengthen ventilation and heat
dissipation
Check the thermistor
Adjust the sensor protection
threshold of the motor
Check the connection of the
equipment communications
Check whether the data
receiving and transmission
complies with the protocol,
whether the check sum is correct
and whether the receiving and
transmission interval complies
with the requirements
Set the inverter to slave mode
Seek for technical support
Check the connections of the
operation panel
Check the connections of the
operation panel
Perform download before
uploading the parameters
Check if d1.09 is consistent
Reserved
Modify the settings of X1 to X4,
AI1, AI2 terminals and ensure
the setting functions are not
repeated (excluding null
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