User Manual of TI10 Series Variable Frequency Drive
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Fault
code
Failure
Display
Fault name
Cause
Countermeasure
during running
exception
P40.24 unreasonable
parameter setting
Correct setting
27
Er.FbL
PID feedback
loss during
running
PID feedback channel
exception
Check feedback channel
P40.26 unreasonable
parameter setting
Correct setting
28
Er.oEP
Excessive
speed bias
Small bias setting between
the motor speed and the
setting speed
Correctly set the speed
bias point
Large load fluctuation
Stable load
29
Er.oSP
Motor
over-speed
Small setting value of
over-speed value
Correctly set the speed
bias point
Large load fluctuation
Stable load
37
Er.SEF
Speed
estimation fault
The motor is not recognized
or the parameters are
incorrect.
Re-identification of motor
parameters
39
Er.Cpy
Parameter
copy fault
Parameter upload or
download exception
Seek technical support
Download directly without
parameter on operation
keyboard
Seek technical support
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