The output
frequency does
not increase to
the frequency
reference.
The frequency reference is within the
jump frequency range.
Set the frequency reference higher
than the jump frequency range.
The frequency reference is exceeding
the upper limit of the frequency
command.
Set the upper limit of the frequency
command higher than the frequency
reference.
Because the load is too heavy, the stall
prevention function is working.
Replace the inverter with a model
with increased capacity.
The cooling fan
does not rotate.
The control parameter for the cooling
fan is set incorrectly.
Check the control parameter setting
for the cooling fan.