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PARAMETERS
5
Selection and protection of a motor
4) When offline auto tuning ends, press on the operation panel. This operation resets the offline auto tuning, and
the monitor display of the operation panel returns to normal.
5) Set "0" in the X12 signal (Bit11), which gives a control input command through FL remote communication. Then,
change the operation mode to Network operation mode.
6) If offline auto tuning ended in error (see the table below), motor constants are not set.
Perform an inverter reset and restart tuning.
7) When tuning is ended forcibly by pressing during tuning, offline auto tuning does not end properly. (The motor
constants have not been set.)
Perform an inverter reset and restart tuning.
8) When the rated power specification of the motor is 200/220V(400/440V) 60Hz, set 1.1 times the rated motor current
value in Pr.9 Electronic thermal O/L relay after tuning is completed.
Error
Display
Error Cause Remedy
8 Forced end Set "1" or "11" in Pr. 96 and perform tuning again.
9 Inverter protective function operation Make setting again.
91 Current limit (stall prevention) function was activated. Set "1" in Pr. 156.
92 Converter output voltage reached 75% of rated value. Check for fluctuation of power supply voltage.
93
Calculation error
A motor is not connected.
Check the motor wiring and make setting again.
Set the rated current of the motor in Pr. 9.
NOTE
Do not change the Pr. 96 setting after completion of tuning (3 or 13). If the Pr. 96 setting is changed, tuning data is
invalid. If the Pr. 96 setting is changed, tuning must be performed again.
The motor constants measured once in the offline auto tuning are stored as parameters and their data are held until
the offline auto tuning is performed again.
An instantaneous power failure occurring during tuning will result in a tuning error. After power is restored, the
inverter goes into the normal operation mode.
Any alarm occurring during tuning is handled as in the ordinary mode. Note that if a fault retry has been set, retry is
ignored.
CAUTION
As the motor may run slightly during offline auto tuning, fix the motor securely with a mechanical brake or
make sure that there will be no problem in safety if the motor runs. Note that if the motor runs slightly, tuning
performance is unaffected.