If The Motor Does Not Run While No Trip Message Is Displayed - Toshiba VFNC3-2001P Instruction Manual

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13.3 If the motor does not run while no trip message is
displayed ...
If the motor does not run while no trip message is displayed, follow these steps to track down the cause.
The motor does not run.
Is the 7-segment LED
extinguished?
Is  displayed?
Is any failure message
displayed?
(See 1.3.1)
Are  and a failure
message displayed alternately?
Is the LED of the RUN/STOP
key lighted?
Is the LED of the RUN/STOP
key off?
 displayed?
13
Determine the cause, using the parameter display function and the status monitoring function.
Refer to Section 11 for the parameter display function or Section 8 for the status motoring function.
YES:
NO :
Check the power supply and the MCCB.
Is power being supplied normally?
• The ST-CC circuit is opened. Close the circuit between CC and the terminal to which
the ST (standby) function on the control circuit terminal is assigned.
• The FRR and CC circuit is closed. Open across CC and the terminal that is assigned
the FRR (coast) on the control terminal block.
• Check the always active functions selection parameter () setting. (See 6.3.2
in E6581595.)
Track down and eliminate the cause of the failure and then reset the inverter.
See 13.2.
The inverter is in the process of retrying. The retry function can be disabled by normal
or emergency stop operation, or by turning off the inverter.
• When operation panel operation is selected ... Press the RUN key to start the operation.
• Check whether the operation panel operation frequency is set properly. (See 3.2.2.)
• When another control mode is selected ... Change the setting of the operation control
mode selection . (See 3.2.1)
• When operation panel is selected: Change the run operation selection parameter
 setting to 1 or 2. (See 3.2.)
• You can check the setting of each input terminal on the monitor. (See 8.2.)
• When another control mode is selected ... Check whether the external operation
command is entered.
• Check to see that the frequency setting signal is not set at zero.
• Check the settings of the frequency setting signal parameters . (See 3.2)
• Check the settings of frequency setting signal points 1 and 2. (See 6.5.2 in E6581594.)
• Check the operation start frequency setting to see if it is larger than the operation
frequency. (See 6.6 in E6581594.)
• Check that the frequency setting (preset-speed operation frequency, etc.) is not set at
zero.
• Check that the motor is not under a too large load or not locked up.
→ Reduce the load if necessary.
M-6
Supply the power
normally.
Make a service call.
E6581595