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1. Too high ambient
temperature；
Frequency
2. Damaged fan；
inverter
o.H.
inner
3. Blocked air duct；
overheat
4.Carry
frequency is too big；
1.Supply power is too
Over
voltage
low；
LU1
of supply
2.Voltage
power
at
stop
circuit abnormal；
1.Supply power is too
low；
2.Capacity of power
network is too small，
Over
or
voltage
LU2
of supply
surge current inside
power
at
power network is too
running
big；
3.DC main contactor
inside the frequency
inverter not close；
In PID running mode,
when the analog
Feedback
feedback channel is
SEn
sensor
selected, the
fault
feedback
signal is lower than
1.
environment；
2.Replace fan；
3. Clear air duct，improve the
frequency inverter periphery
wave
ventilation and dissipation
environment；
4.Check ［ E-20］ and ［ E-21］ setting；
1.check the supply voltage and
troubleshooting；
detection
2. Ask for technical support；
1. Check the supply voltage and
instantaneous
troubleshooting；
2.Improve power supply system；
3. Ask for technical support；
1. Check wiring and re-wire
again；
2. Adjust the feedback signal
input type；
155
Ameliorate
periphery
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