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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 setting 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.
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 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, 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.
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
g
Flickering
STOP PU
9
STF
TUNE
ERROR