AC70 VC CONTROL FREQUENCY INVERTER MANUAL
FAULT DIAGNOSES AND PROCESSING
52
earth, shield and deal as
required.
E.oH
Inverter
over-heat
●
Temperature is too high.
●
Air channel is blocked.
●
Fan connection parts is
loose.
●
Fan is damaged.
●
Temperature detection
circuit fault
●
Make the environment
meeting the requirement.
●
Clear the air channel.
●
Check and re-connect the
wire
●
Change the same new fan.
●
Seek support from factory.
E.TE1
Motor static
detection fault
●
Detection overtime
●
Perform static detection
while motor is running.
●
Capacitance difference is
too big between motor and
inverter.
●
Motor parameter setting
mistake.
●
Check motor connection
wire.
●
Detect after motor stop
totally.
●
Change inverter model.
●
Reset parameter according
to nameplate.
E.TE2
Motor rotation
detection fault
●
Detect while motor is
running.
●
Detect with load.
●
Detection overtime
●
Capacitance difference is
too big between motor and
inverter.
●
Motor parameter setting
mistake.
●
Detect after motor stop
totally.
●
Re-detect without load.
●
Check motor connection
wire.
●
Change inverter model.
●
Reset parameter according
to nameplate.
93SE
Memory fault
●
Electromagnetic disturb in
memory period.
●
EEPROM damage.
●
re-input and save.
●
Seek support from factory.
LIFE
Reserved
●
Seek support from factory.
ERR1
Input phase
missing
●
3 input phase missing
●
Check 3phase input power
and phase.
●
Check 3phase input power
wiring.
ERR2
Output phase
missing
●
3 phase output of inverter
missing connection with motor
●
Check wire between
inverter and motor, earth and
motor insulation.
ERR3
Current
detection fault
●
Detect circuit fault.
●
Phase imbalance
●
Seek for technique support.
●
Check motor and wiring.
ERR4
Inverter
external fault
●
Peripheral equipment fault
protection.
●
Check peripheral equipment.
ERR5
Swing
frequency
fault
●
User not set right swing
frequency running parameter.
●
Set parameter again.
