Mitsubishi Electric FR-A720-0.4K Instruction Manual page 204

(3) Execution of tuning
CAUTION
· Before performing tuning, check the monitor display of the operation panel (FR-DU07) or parameter unit (FR-PU04/FR-
PU07) if the inverter is in the state ready for tuning. (Refer to 2) below) When the start command is turned ON under V/F
control, the motor starts.
1)When performing PU operation, press
For External operation, turn ON the start command (STF signal or STR signal). Tuning starts.
REMARKS
· Satisfy the required inverter start conditions to start offline auto tuning. For example, stop the input of MRS signal.
· To force tuning to end, use the MRS or RES signal or press
(Turning the start signal (STF signal or STR signal) OFF also ends tuning.)
· During offline auto tuning, only the following I/O signals are valid: (initial value)
· Input signals <valid signal> STOP, OH, MRS, RT, CS, RES, STF, STR
· Output terminal RUN, OL, IPF, FM, AM, A1B1C1
Note that the progress status of offline auto tuning is output in fifteen steps from AM and FM when speed and output
frequency are selected.
· Do not perform ON/OFF switching of the second function selection signal (RT) during execution of offline auto tuning. Auto
tuning is not executed properly.
· Setting offline auto tuning (Pr. 96 Auto tuning setting/status = "1 or 101") will make pre-excitation invalid.
CAUTION
· When selecting offline auto tuning performed with motor running (Pr. 96 Auto tuning setting/status = "101"), caution must be
taken since the motor runs.
· Since the RUN signal turns ON when tuning is started, caution is required especially when a sequence which releases a
mechanical brake by the RUN signal has been designed.
· 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.
· While Pr. 79 = "7," turn the X12 signal ON to tune in the PU operation mode.
2)Monitor is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU07/FR-PU04) during tuning as below.
Pr. 96 setting
(1) Setting
(2) Tuning in
progress
(3) Normal end
(4) Error end (when
the inverter
protective function
is activated)
· Reference: Offline auto tuning time (when the initial setting is set)
Offline Auto Tuning Setting
Non-rotation mode (Pr. 96 = "1")
Rotation mode (Pr. 96 = "101")
/
Parameter Unit
(FR-PU07/FR-PU04) Display
1 101
101
1
STOP
STOP PU
TUNE TUNE 102
2
STF FWD PU STF FWD
103
TUNE TUNE
3
COMPLETION COMPLETION
STF STOP PU STF STOP
TUNE
9
ERROR
STF STOP PU
Approximately 25 to 120s
(Tuning time differs according to the inverter capacity and motor type.)
Approximately 40s
(Offline auto tuning time varies with the acceleration and deceleration time
settings as indicated below. Offline auto tuning time = acceleration time +
deceleration time + approx. 30s)
Selection and protection of a motor
of the operation panel.
of the operation panel.
Operation Panel (FR-DU07) Display
1
PU
PU
PU
Flickering
Time
101
4
Flickering
193