Specifications

VFD‐G7 Series Frequency Inverter Operation ManualChapter 8 Troubleshooting

169
Fault
code
Fault
categories
Possible reasons of fault Actions
E016
IGBT
module’s
heatsink
overheat
Vent is obstructed or fan
does not work
Clean the vent or replace the fan
Over-temperature Lower the ambient temperature
Wires or connectors of
control board are loose
Check and rewiring
Auxiliary power supply is
damaged or IGBT driving
voltage is too low
Seek service
Short-circuit of IGBT
bridge
Seek service
Control board is abnormal Seek service
E017
External
equipment fails
Terminal SI used for
inputting external faults
acts
Check the input of the external
device
E018
RS485
communication
failure
Wrong baud rate setting Set the baud rate correctly
Serial port communication
error
Press STOP/RST to reset, Seek
service
Communication break for
long time
Check the wiring of serial port
E019
Current
detection
circuit has fault
Wires or connectors of
control board are loose
Check and re-wire
Auxiliary power supply is
damaged
Seek service
Hall sensor is damaged Seek service
Amplifying circuit is
abnormal
Seek service
E020
Auto-learning
fails
Motor's and drive's
capacity doesn't match
each other.
Replace the drive with another
model
Improper settings of
parameters on the
nameplate
Set the parameters correctly
according to the nameplate