In the process of the inverter deceleration, when the DC bus voltage exceeds the
overvoltage stall protection voltage/the energy consumption brake voltage, the inverter
stops deceleration and maintains at the current operating frequency(if F3.12 is not set to 0,
the braking signal is outputted the energy consumption brake can be implemented by an
external braking resistor.) and then continues to decelerate upon decline of the bus voltage
Overvoltage stall gain is used for adjusting inhibition overvoltage capability during
deceleration. The greater this value, the stronger inhibition overvoltage capability under
the premise that the overvoltage does not occur, the best is the smaller gain setting.
For the small inertia load, the overvoltage stall gain should be small, otherwise which
cause the slower system dynamic response. For the big inertia load, the overvoltage stall
gain should be large, otherwise the poor inhibitory effect may cause overvoltage fault.
When the overvoltage stall gain is set to 0, the overvoltage stall function will be
canceled.
The input phase loss protection function is only for PI9000 G type inverter with
18.5kW or above, not for the F type inverter with 18.5kW or below and however F8.07 is
set to 0 or 1.
You can detect whether the motor is shorted to ground when the inverter is powered
on.
If this function is active, the inverter's UVW terminal will output voltage after power-
on for a while.
When the inverter selects automatic fault reset, it is used to set the number of times
of automatic fault reset. If the set number of times is exceeded, the inverter remains a
failed state.
When set F8.10 (number of automatic fault reset) ≥ 1, inverter will run
automatically when repower after instantaneous power-off.
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