Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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4-16
Ch
ap. 4
RUNNING TH
E
MOT
O
R
If any of these errors occurs, remove the error cause and perform tuning again, or consult your Fuji Electric representative.
Do not execute motor tuning with output filter unless the filter is a reactor type only. A tuning error may result if any other
type filter is in use.
Vibration that may occur when the motor's coupling is elastic can be regarded as normal vibration due to the output voltage
pattern applied in tuning. The tuning does not always result in an error; however, run the motor and check its running state.
4.1.11 Running the inverter for motor operation check
If the user configures the function codes wrongly without completely understanding this Instruction Manual and the
FRENIC-MEGA User's Manual, the motor may rotate with a torque or at a speed not permitted for the machine.
Accident or injury may result.
After completion of preparations for a test run as described above, start running the inverter for motor operation check using the
following procedure.
If any abnormality is found in the inverter or motor, immediately stop operation and investigate the cause referring to Chapter 6,
"TROUBLESHOOTING."
------------------------------------------------------------------ Test Run Procedure ------------------------------------------------------------------
(1) Turn the power ON and check that the reference frequency
*000
Hz is blinking on the LED monitor.
(2) Set a low reference frequency such as 5 Hz, using / keys. (Check that the frequency is blinking on the LED monitor.)
(3) Press the key to start running the motor in the forward direction. (Check that the reference frequency is displayed on the LED
monitor.)
(4) To stop the motor, press the key.
< Check points during a test run >
• Check that the motor is running in the forward direction.
• Check for smooth rotation without motor humming or excessive vibration.
• Check for smooth acceleration and deceleration.
When no abnormality is found, press the
key again to start driving the motor, then increase the reference frequency using /
keys. Check the above points again.
If any problem is found, modify the function code data again as described below.
Depending on the settings of function codes, the motor speed may rise to an unexpectedly high and dangerous level,
particularly, under vector control with/without speed sensor. To avoid such an event, the speed limiting function is
provided.
If the user is unfamiliar with the function code settings (e.g., when the user starts up the inverter for the first time), it is
recommended that the frequency limiter (high) (F15) and the torque control (speed limit 1/2) (d32/d33) be used. At the
startup of the inverter, to ensure safer operation, specify small values to those function codes at first and gradually increase
them while checking the actual operation.
The speed limiting function serves as an overspeed level barrier, or as a speed limiter under torque control. For details of
the speed limiting function, refer to the FRENIC-MEGA User's Manual.
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