185
Selection and protection of a motor
4
PARAMETERS
(3) Execution of tuning
1)When performing PU operation, press / of the operation panel.
For external operation, turn on the start command (STF signal or STR signal). Tuning starts.
2)Monitor is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU07/FR-PU04) during tuning as
below.
· Reference: Offline auto tuning time (when the initial value is set)
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.
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.
· To force tuning to end, use the MRS or RES signal or press of the operation panel.
(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, CA, AM, A1B1C1
Note that the progress status of offline auto tuning is output from AM and CA when speed and output frequency are selected.
· Since the RUN signal turns on when tuning is started, caution is required especially when a sequerence 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.
· Do not perform ON/OFF switching of the second function selection signal (RT) during execution of offline auto tuning. Auto
tuning is not excecuted properly.
· Setting offline auto tuning (Pr. 96 Auto tuning setting/status = "1 or 101") will make pre-excitation invalid.
Parameter Unit
(FR-PU07/FR-PU04) Display
Operation Panel (FR-DU07) Display
Pr. 96 setting 1 101 1 101
(1) Setting
(2) Tuning in
progress
(3) Normal end
(4) Error end (when
the inverter
protective function
is activated)
Offline Auto Tuning Setting Time
Non-rotation mode (Pr. 96 = "1")
Approximately 25 to 120s
(Tuning time differs according to the inverter capacity and motor type.)
Rotation mode (Pr. 96 = "101")
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)
1
STOP PU
101
STOP PU
FWD PU
2
STF
TUNE
FWD PU
102
STF
TUNE
STOP PU
3
STF
TUNE
COMPLETION
STOP PU
103
STF
TUNE
COMPLETION
Flickerin
Flickering
STOP PU
9
STF
TUNE
ERROR
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