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CV3100 series and MINI series high performance general purpose inverter instruction manual
7-3
Fault
code
Fault name
Possible cause
Solution
Er09
Module fault
①
Inverter outputs short circuit or
earthing.
②
Instant over current of inverter
③
Too high environment temperature
④
Air flue is blocked or fan is
damaged
⑤
DC auxiliary power supply occurs
fault
⑥
Abnormal controlpanel
①
Examine the connecting
wire;
②
Refer to solution against over
current
③
Clean the air flue or change
the fan
;
④
Ask for service from
manufacturer or agency.
Er10
(Er19)
Over heat
radiator
①
Too high environment temperature
②
Fan is damaged
③
Flue is blocked
①
Lower environment
temperature
②
Change the fan
③
Clean the flue and change
the ventilation condition;
Er11
Overload of
inverter
①
Too high torque boost or unsuitable
V/F curve
②
Too short accelerating time
③
Too large load
①
Reduce the torque boost and
adjust the V/F curve.
②
Extend accelerating time
③
Reduce load or choose the
inverter of large power
Er12
Overload of
motor
①
Too high torque boost or unsuitable
V/F curve
②
Too low main voltage
③
Locked rotor of motor or too large
abrupt change of load
④
Incorrect setting of motor overload
protection factor
①
Reduce the torque boost
value or adjust the V/F curve.
②
Examine main voltage
③
Examine load
④
Set the motor overload
protection factor correctly
Er13
Fault of
peripheral
equipment
①
Fault input terminal of peripheral
equipment is close
①
Disconnect the terminal input
and remove the fault.
Er14
Fault of serial
port
communication
①
Improper setting of baud rate
②
False of serial port communication
③
Without upper machine
communication signal
①
Set baud rate correctly
②
Examine communication
cable and ask for service
③
Check whether PC works and
the connection is correct.
Er15
Reserved
Er16
Incorrect
current
detection
①
The current detecting device is
damaged or the circuit occurs fault
②
DC auxiliary power is damaged
①
Ask for service from
manufacturer or agency.
②
Ask for service from
manufacturer or agency.
Er17
Fault of
communication
between
keyboard and
control panel
①
The circuit connecting keyboard
and control panel occurs fault
②
The terminal is poor in connecting
①
Ask for service
②
Examine and reconnect
Er18
CPU fault
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