Diagnostics & Troubleshooting 6 - 21
If the Motor Does Not Operate Properly
The following causes are possible:
Ensure the Digital Operator is securely connected to the Drive.
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 REF REMOTE LEDs should be OFF for Local mode. Press the LOCAL/REMOTE key to switch.
The Drive is not in Drive mode.
If the Drive is not in Drive mode, it will remain in ready status and will not start. Press the MENU key once and then press the
DATA/ENTER key. The Drive is now in Drive mode.
The Speed Command is too low.
If the Speed Command is set below the frequency set in E1-09 (Minimum Output Frequency), the Drive will not operate.
Raise the Speed Command to at least the minimum output frequency.
The motor does not operate when an external run command is input.
The following causes are possible:
The Drive is not in Drive mode.
If the Drive is not in Drive mode, it will remain in ready status and will not start. Press the MENU key once and then press the
DATA/ENTER key. The Drive is now in Drive mode.
The Local/Remote mode is not selected properly.
The status of the SEQ and REF REMOTE LEDs should be ON for Local mode. Press the LOCAL/REMOTE key to switch.
The Speed Command is too low.
If the Speed Command is set below the frequency set in E1-09 (Minimum Output Frequency), the Drive will not operate. Raise
the Speed Command to at least the minimum output frequency.
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 Drive’s
stall prevention function or automatic torque boost function. Increase the acceleration time (CI-01) or reduce the motor load.
Also, consider increasing the motor size.
The motor only rotates in one direction.
"Reverse run prohibited" may be selected. If b1-04 (Prohibition of Reverse Operation) is set to 1 (reverse run prohibited), the
Drive will not accept any reverse run commands.
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