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îš‹ If the Motor Does Not Operate Properly
The following causes are possible:
îš„Ensure the Digital Operator is securely connected to the Inverter.
îš„The motor does not operate when the RUN key on the Digital Operator is pressed.
The following causes are possible:
The LOCAL/REMOTE mode is not selected properly.
The status of the SEQ and the REF LEDs have to be OFF for LOCAL mode. Press the LOCAL/REMOTE key
to switch between the two modes or check if there is a multi-function digital input programmed to LOCAL/
REMOTE selection (H1- = 1).
The Inverter is not in drive mode
If the Inverter is not in Drive mode, it will not start. Press the MENU key once and then press the DATA/
ENTER key. The Inverter is now in drive mode.
The Frequency Reference is too low
If the frequency reference is set below the frequency set in E1-09 (Minimum Output Frequency), the Inverter
will not operate. Raise the frequency reference to at least the minimum output frequency.
There is a multi-function analog input setting fault.
If multi-function analog input H3-09 is set to 1 (frequency gain), and if no voltage (current) is input, then the
frequency reference will be zero. Check to be sure that the set value and analog input value are correct.
îš„The motor does not operate when an external operation signal is input.
The following causes are possible:
The Inverter is not in drive mode.
If the Inverter is not in Drive mode, it will not start. Press the MENU key once and then press the DATA/
ENTER key. The Inverter is now in drive mode.
The LOCAL/REMOTE mode is not selected properly.
The status of the SEQ and the REF LEDs have to be ON for REMOTE mode. Press the LOCAL/REMOTE
key to switch between the two modes or check if there is a multi-function digital input programmed to
LOCAL/REMOTE selection (H1- = 1).
The Frequency Reference is too low
If the frequency reference is set below the frequency set in E1-09 (Minimum Output Frequency), the Inverter
will not operate. Raise the frequency reference to at least the minimum output frequency.
îš„The motor stops during acceleration or when a load is connected.
The load may be too large. The motor’s responsiveness limit may be exceeded if it is accelerated too rapidly
by the Inverter’s stall prevention function or automatic torque boost function. Increase the acceleration time
(C1-01) or reduce the motor load. Also, consider increasing the motor size.
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