Toshiba VF-FS1 - Manual (Page 240)

E6581381
M-6
13
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? Check the power supply and the MCCB.
Is power being supplied normally? Supply the power
normally.
Make a service call.
Is QHH displayed? • 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.
• Check the setting of H (always active function selection). ⇒ See section 6.3.1.
Is any failure message
displayed?
⇒ See section 1.3.1. Track down and eliminate the cause of the failure and then reset the inverter.
⇒ See section 13.2.
Are TVT[ and a failure
message displayed alternately?
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.
Q displayed?
Is the RUN key lamp lighted?
Is the RUN key lamp off?
• Check to see that the frequency setting signal is not set at zero.
• Check the settings of the frequency setting signal parameters HOQF, H, H.
⇒ See section 6.5.
• Check the frequency setting signal points 1 and 2 settings. ⇒ See section 6.5.
• Check that the start-up frequency is not higher than the operation frequency.
⇒ See section 6.6.
• 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.
Determine the cause, using the parameter display function and the status monitoring function.
⇒ See section 11 for the parameter display function or section 8 for the status motoring function.
• 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 section 3.1.2
• When another control mode is selected ... Change the setting of the operation control
mode selection EOQF. ⇒ See section 5.3.
• When operation panel operation is selected ... Change the setting of the operation
control mode selection parameter EOQF to 1. ⇒ See section 5.3.
• You can check the setting of each input terminal on the monitor. ⇒ See section 8.1.
• When another control mode is selected ... Check whether the external
operation
command is entered.
YES:
NO :