V5 series inverter
86
5
Fault Diagnosis and solution
5-1. Fault diagnosis and solution
When fault occurs, the error code will show in LED display, the inverter stops outputting and the fault relay contactor is acti-
vated. If the motor is running when the fault occurs, motor will free stop. Table 5-1 is the fault inverter may happen. Please
check the fault according to the table or contact us for service.
Table 5-1 Fault and solution
Fault Code
Fault Type
Possible reason
Solution
E-01
Over-current
when
accelerating
Too heavy the load and too short the Acc time
Increase the accerlation time
V/F curve is not suitable
Adjust V/F curve setting
Restart the motor when it is running
Set to restart after speed detection
torque boost value is too large
Adjust the value of manual torque boost or change to auto
torque boost
Inverter power is too low
Select higher power inverter
E-02
Over-current
when
decelerating
Too short Dec time
Increase the Dec time
Potential or big inertia load
Increase the brake power of external brake unit
Inverter power is too low
Select higher power inverter
E-03
Over-current
when
constant speed run-
ning
Sudden change of load
Check and reduce the change of load
Too short Acc/Dec time
Increase the Acc/Dec time
Abnormal load
Check the load
AC supply voltage is low
Check AC supply voltage
Inverter power is too low
Select higher power inverter
E-04
Over-voltage
when
accelerating
Abnormal input voltage
Check input power supply
Too short Acc time
Increase the Acc time
The rotating motor restarts after stop
Set to restart after speed detection
E-05
Over-voltage
when
decelerating
Too short Dec time
Prolong Dec time
Potential or big inertia load
Increase the brake power of external brake unit
E-06
Over-voltage
when constant speed
running
Abnormal input voltage
Check input power supply
Too short Acc/Dec time
Increase the Acc/Dec time
Abnormal change of input voltage
Install input reactor
Too big the load inertia
Connect suitable braking unit
E-07
Inverter power supply
over-voltage
Abnormal input voltage
Check input power or ask for service
E-08
Inverter overheat
Duct blockage
Clean the duct and improve ventilation condition
Ambient temperature too high
Improve ventilation condition and decrease carrier fre-
quency
Fan is broken
Change the fan
IGBT module is abnormal
Ask for help
E-09
Inverter overload
Too short Acc time
Increase the Acc time
DC braking current is too big
Reduce DC braking current and increase braking time
V/F curve is not suitable
Adjust V/F curve and torque boost value
Содержание V5
Страница 1: ...Xinje Electronic Co Ltd VB3 VB5 V5 frequency inverter User manual No INV C 01 20081130 204 ...
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Страница 42: ...V5 series inverter 34 Fig 3 12 Procedures of starting the inverter for the first time ...