V&T E5 Series User Manual page 136

E5 Series High Performance Universal Inverter
Fault
Fault
display Fault description
No.
on panel
Abnormal
8 E.rEF
comparison level
Motor data
9 E.AUt identification
T0 E.FAL Module protection
Heat-sink T over
TT E.oHT temperature
protection
Heat-sink T over
TT E.oHT temperature
protection
Loose connection of connectors
inside the inverter
Abnormal switching power supply
Abnormal signal sampling and
comparison circuit
Enabled motor data identification
function during motor spinning
Motor data identification overtime
failure
Incorrect setting of motor
parameters in group P9
Output over current
DC BUS over-voltage
Output terminal short circuited to
ground
Loose connection of connectors
inside the inverter
Ambient over−temperature
Blockage of air duct
Fan failure
Inverter module failure
Temperature detection circuit
failure
Ambient over−temperature
Blockage of air duct
Fan failure
Rectifier module failure
Temperature detection circuit
failure
Chapter 7 Troubleshooting
Possible causes
User's Manual
Corrective actions
Ask professional technicians to
maintain
Seek for technical support
Seek for technical support
Perform motor data identification
after the motor at standstill
Check whether motor wiring are
well connected
Length of motor wiring within T00m
Set motor parameters according to
the nameplate on the motor
Check whether the motor the
output connection are short
circuited
Check whether ground is short
circuited and whether the load is
too heavy
Check the mains power supply
Check whether the large inertia
load and quickly stop
Check the braking unit and braking
resistor is property selected
Check the motor wiring
Ask professional technicians to
maintain
Lower the ambient temperature
and strengthen ventilation and heat
dissipation.
Clean the dusts, wool and other
foreign matters in the air duct.
Check whether fan wiring are well
connected
Replace a new fan
Seek for technical support
Seek for technical support
Lower the ambient temperature
and strengthen ventilation and heat
dissipation.
Clean the dusts, wool and other
foreign objects in the air duct
Check whether fan wiring is well
connected.
Replace a new fan of the same
model
Seek for technical support
Seek for technical support
123