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Operation selection at power failure and instantaneous power failure
Setting
1) Set "21" in Pr. 96 Auto tuning setting/status.
Tuning is performed without motor running.
It takes approximately 9s ∗ until tuning is completed.
(Excitation noise is produced during tuning.)
∗Tuning time differs according to the inverter capacity and motor type.
2) Set the rated motor current (initial value is rated inverter current) in Pr. 9 Electronic thermal O/L relay. (Refer to page 123)
3) Set Pr. 71 Applied motor according to the motor used.
∗1 Refer to page 125 for other settings of Pr. 71.
Execution of tuning
1) Set "1" in the X12 signal (Bit11), which gives a control input command through FL remote communication. Then,
change the operation mode to the PU operation mode using on the operation panel.
2) Press on the operation panel. Tuning starts.
(When the Network operation mode is selected and "1" is set in the X12 signal (Bit 11), which gives a control input
command through FL remote communication, the inverter output is shutoff. Therefore, inputting a start signal through
FL remote communication does not start tuning in this condition.)
3) Monitor is displayed on the operation panel during tuning as below.
Reference: Offline auto tuning time (when the initial value is set)
Motor Pr. 71 Setting ∗1
Mitsubishi standard motor
Mitsubishi high efficiency motor
SF-JR 3
SF-JR 4P 1.5kW or less 23
SF-HR 43
Others 3
Mitsubishi constant-torque motor
SF-JRCA 4P 13
SF-HRCA 53
Others (SF-JRC, etc.) 13
Other manufacturer's standard motor — 3
Other manufacturer's constant torque motor — 13
POINT
Before performing tuning, check the monitor display of the operation panel if the inverter is in the status for tuning.
(Refer to 3) below)
NOTE
To force tuning to end, press of the operation panel.
X12 signal is the only valid input/output signal during the offline auto tuning.
Setting "0" in the X12 signal while tuning is being set or performed changes the operation mode to the Network
operation mode forcibly.
Use the X12 signal after setting "0" (stop command) in the forward/reverse rotation command (STF/STR signal) to set
and perform tuning.
When executing offline auto tuning, input the run command after switching ON the main circuit power (R/L1, S/L2, T/
L3) of the inverter.
Operation Panel Indication
Pr. 96 setting 21
(1) Setting
(2) Tuning in progress
(3) Normal end
(4) Error end
(when inverter protective function
operation is activated)
Offline Auto Tuning Setting Time
Tune motor constants (R1) only
(Pr. 96 = "21")
Approx. 9s (Tuning time differs according to the inverter capacity
and motor type.)
Flickering