Inovance H0U-88B1G - Page 52

Phenomenon Possible Cause Checking Item Handling Method
has been
pressed, the
fault is normal.
The inverter
reports Err16 fault
The
communication
between the
inverter and the
controller is
abnormal.
The controller is
powered down.
The controller is
abnormal.
Check the
function codes.
Check the
connection of
RS485
communication
cable.
The fault is
normal if it is in
the power-line
drive mode and
there is no
need to run the
inverter.
Over current fault
is reported in
running process.
Acceleration time
of inverter is not
set properly. Too
large Kp or too
small Ti in PID
parameters
results in rapid
speed regulation
by the motor,
finally leading to
over current.
Increase the “Acceleration time”. The
bigger the power is, the longer the
acceleration time is.
Properly decrease Kp (less than 2.0).
Properly increase Ti (1.0-2.0
seconds).
Motor parameters
are not matched.
Check whether
the power level
of motor is
suitable.
Check the
parameters of same
power level and
make
corresponding
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