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3. Tuning procedure
(1) Apply the brakes and fix the rotor. It is acceptable without the brake in the case of the tuning at the motor unit.
(2) Confirm the motor is connected with the inverter.
(3) If you use Multi Function Key Pad (MFKP), we recommend local mode. Keep pushing the "REM/LOC" key of
MFKP until the indicator “REM” change into “LOC”.
(4) Execute the tuning with the function code L03=2 (
Note 1
). This work is used to detect the wrong wiring.
However, in the case of Surface Permanent Magnet motor (SPM motor), this work cannot detect the wrong
wiring. In this case, skip to procedure 3-(5).
In the case of finishing tuning normally, Skip to procedure 3-(5).
If tuning error (Er7) occurs, it might be wrong wiring. Reset the error display and execute the procedure as
follows.
After turning off the power supply, replace V and W of the wiring for inverter drive, and execute the tuning again
afterwards.
(In the case of the rotor free, if tuning error (Er7) occurs similarly even if V and W are replaced, it might be
disconnection or wrong wiring of the encoder. Try to wire correctly, and execute again from the beginning.)
(5) Execute the tuning with the function code L03=3. (
Note 1
)
The tuning procedure is completed.
(
Note 1
) Tuning procedure after reactivates
- In the case of local mode
Select "1 DATA SET" in the program mode of MFKP, change the function code L03, and set with the
“FUNC/DATA” key. Pressing the “FWD” key starts tuning. The "EXECUTING" is displayed on the monitor of the
MFKP during the tuning.
The "EXECUTING" disappears, indicating that it is the end of tuning. The L03 data automatically returns to "0".
The tuning result is stored in the function code L04. Check the result and make the note of the value.
- In the case of remote mode
Set the function code L03. When the drive instruction is set, the tuning is begun.
In the tuning mode (L03=1 or 3), tuning takes 4 seconds. In the tuning mode (L03=2), tuning takes 24 seconds.
Release the drive instruction after the regulated time has elapsed. The L03 data returns to "0." The tuning result is
stored in the function code L04. Check the result and make the note of the value.
4. Checking that tuning is completed normally
In the normal mode, run the motor.
The recommended checking procedure is given below.
Make the motor rotate more than one rotation at the low frequency about 1 Hz.
In the MFKP local mode, do the following:
1) Push the "FWD" key and set the reference speed at about 1 Hz.
2) Make the motor rotate more than one rotation.
3) Push the "STOP" key. When the motor stops, the reference speed returns to 0.
If the motor does not rotate normally, do the following:
1) Check that the function codes are properly configured.
2) Check the wiring between the encoder and option card.
3) Match the rotational direction of the motor with that of the encoder.
If any problem is found in steps 1) to 3) above, correct it (them) and perform tuning again.
If no problem is found, change the motor-inverter wiring between V and W and then perform tuning again.
