5-10
•The reference frequency is too low.
When the reference frequency is lower than the minimum output frequency deter-
mined with the constant set in n29, the Inverter cannot operate, in which case change
the reference frequency so that the reference frequency will be equivalent to or higher
than the minimum output frequency.
•The sequence input method is wrong.
If the 3-wire sequence input mode is selected as an external terminal function instead
of the actual 2-wire sequence input mode, the motor will not run, in which case change
the constant or change to the sequence input that matches the constant setting.
H The Motor Does Not Operate when an External Run Signal is
Input.
•Operation mode is selected incorrectly.
If “0,” “2,” or “4” is set in n02, the motor does not operate when a run signal is input.
Always set “1,” “3,” or “5” in n02.
•The reference frequency is too low.
When the reference frequency is lower than the minimum output frequency deter-
mined with the constant set in n29, the Inverter cannot operate, in which case change
the reference frequency so that the reference frequency will be equivalent to or higher
than the minimum output frequency.
H The Motor Stops during Acceleration or when a Load is
Connected.
•Load is too high.
The 3G3EV has a stall prevention function and full automatic torque boost function.
However, if the acceleration or load is too large, the motor response limit will be ex-
ceeded.
To prevent this, increase acceleration time or reduce load. Motor capacity should be
also increased.
Operation Chapter 5
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