V5 series inverter
90
5
5
5
5 Fault
Fault
Fault
Fault Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Countermeasures
Countermeasures
Countermeasures
Countermeasures
5-1.
5-1.
5-1.
5-1. Fault
Fault
Fault
Fault diagnosis
diagnosis
diagnosis
diagnosis and
and
and
and countermeasurs
countermeasurs
countermeasurs
countermeasurs
When fault occurs, the function code and its contents will be shown in LED display, the protection function starts, the inverter
stops outputting and the fault relay contact point is activated.Before seeking services, the subscriber may conduct the self-
check according to the prompt given in this section, analyze the fault causes, and find out the solutions.If the fault belongs to
the causes described in the broken line box, please seek the service by contacting the inverter agent or directly contacting our
corporationl.
Table
Table
Table
Table 5-1
5-1
5-1
5-1 Fault
Fault
Fault
Fault content
content
content
content and
and
and
and countermeasures
countermeasures
countermeasures
countermeasures
Fault
Fault
Fault
Fault Code
Code
Code
Code
Fault
Fault
Fault
Fault Type
Type
Type
Type
Possible
Possible
Possible
Possible rrrreason
eason
eason
eason of
of
of
of fault
fault
fault
fault
countermeasure
countermeasure
countermeasure
countermeasure
E-01
Over-current
during
acceleration
Too heavy the load and too short the Acc time
Prolong the Acc time
V/F curve is not suitable
Adjust V/F curve
The rotating motor restarts after stop
Set as “start on fly” function
Too large the value of torque boost
Adjust the value of manual torque boost or change it as
auto torque
据矩提升
Inverter power is too low
Select a high power inverter
E-02
Over-current
during
deceleration
Too short Dec time
Prolong the Dec time
The load generates energy or the load inertial is
too big
Connect suitable braking kit
Inverter power is too low
Select a high power inverter
E-03
Over-current
during
constant speed
Sudden change of load
Check and reduce the change of load
Too short Acc/Dec time
Prolong Acc/Dec time
Abnormal load
Check the load
AC supply voltage is low
Check AC supply voltage
Inverter power is too low
Select a high power inverter
E-04
Over-voltage durning
acceleration
Abnormal input voltage
Check input voltage
Too short Acc time
Prolong Acc time
The rotating motor restarts after stop
Set as “start on fly” function
E-05
Over-voltage durning
deceleration
Too short Dec time
Prolong Dec time
The load generates energy or the load inertial is
too big
Connect suitable braking kit
E-06
Over-voltage
Durning
constant
speed operation
Abnormal input voltage
Check input voltage
Too short Acc/Dec time
Prolong Acc/Dec time
Abnormal change of input voltage
Install input reactor
Too big the load inertial
Connect suitable braking kit
E-07
Inverter’s
control
power
supply
over
voltage
Abnormal input voltage
Check input power or ask for service
E-08
Inverter overheat
Vent obstructed
Clean the vent
Over temperature
Improve condition and decrease carrier frequency
Fan does not work
Change the fan
IGBT module is abnormal
Ask for help
E-09
Inverter overload
Too short Acc time
Prolong Acc time