If The Motor Does Not Operate - YASKAWA Varispeed G7 Series Instruction Manual

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If the Motor Does Not Operate

Use the following information if the motor does not operate.
The motor does not operate when the RUN Key on the Digital Operator is pressed.
The following causes are possible.
If the Inverter is not in drive mode and the DRIVE indicator on the Digital Operator (JVOP-161) does not light
up, the Inverter will remain in ready status and will not start. Press the Menu Key to display the drive mode,
and enter the drive mode by pressing the DATA/ENTER Key. "-Rdy-" will be displayed when drive mode is
entered.
IMPORTANT
The operation method setting is wrong.
If constant b1-02 (Operation Method Selection) is set to 1 (control circuit terminal), the motor will not operate
when the Run Key is pressed. Either press the LOCAL/REMOTE Key to switch to Digital Operator operation
or set b1-02 to 0 (Digital Operator).
The LOCAL/REMOTE Key is enabled by setting o2-01 to 1 and disabled by setting o2-01 to 0. It is enabled
when the drive mode is entered.
The Run Command selection result can be checked with U1-86.
INFO
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 error.
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.
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 and the DRIVE indicator on the Digital Operator (JVOP-161) does not
light up, the Inverter will remain in ready status and will not start. Press the MENU Key to make the DRIVE
indicator flash, and enter the drive mode by pressing the DATA/ENTER Key. "-Rdy-" will be displayed when
drive mode is entered.
Troubleshooting
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