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PARAMETERS
5
Operation selection at power failure and instantaneous power failure
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 on 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 "21" 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 (23). 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.
The set frequency monitor displayed during the offline auto tuning is 0Hz.
Automatic restart operation will also be performed after a reset or when a retry is made by the retry function.
CAUTION
When automatic restart after instantaneous power failure has been selected, the motor and machine will start
suddenly (after the reset time has elapsed) after occurrence of an instantaneous power failure.
Stay away from the motor and machine.
When you have selected automatic restart after instantaneous power failure function, apply in easily visible
places the CAUTION stickers supplied to the Instruction Manual (Basic).
When the start signal is turned OFF or is pressed during the restart cushion time after instantaneous
power failure, deceleration starts after Pr. 58 Restart cushion time has elapsed.
Parameters referred to
Pr. 7 Acceleration time, Pr. 21 Acceleration/deceleration time increments Refer to page 116
Pr. 13 Starting frequency
Refer to page 119
Pr. 65, Pr. 67 to Pr. 69 Retry function
Refer to page 158
Pr. 71 Applied motor
Refer to page 125
Pr. 78 Reverse rotation prevention selection
Refer to page 167