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(3) Execution of tuning
POINT
Before performing tuning, check the monitor display of the operation panel or parameter unit (FR-PU04/FR-PU07)
if the inverter is in the status for tuning. (Refer to 2) below) When the start command is turned ON under V/F
control, the motor starts.
1) When performing tuning or PU operation, press
(FR-PU04/FR-PU07).
For external operation, turn ON the run command (STF signal or STR signal). Tuning starts.
NOTE
To force tuning to end, use the MRS or RES signal or press
signal or STR signal) OFF also ends tuning.)
During offline auto tuning, only the following I/O signals are valid: (initial value)
Input terminal <valid signal>
Output terminal
Note that the progress status of offline auto tuning is output in eight steps from FM when speed and output frequency
are selected.
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.
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.
2) Monitor is displayed on the operation panel and parameter unit (FR-PU04/FR-PU07) during tuning as below.
Pr. 96 setting
(1) Setting
(2)Tuning in progress
(3)Normal end
(4)Error end
(when inverter protective
function operation is
activated)
REMARKS
Reference: Offline auto tuning time (when the initial value is set)
Offline Auto Tuning Setting
Tune all motor constants (Pr. 96 = "1")
Tune motor constants (R1) only (Pr. 96 = "11") Approximately 9s
The set frequency monitor displayed during the offline auto tuning is 0Hz.
MRS, RES, STF, STR
RUN, FM, A, B, C
Parameter Unit
(FR-PU04/FR-PU07) Display
1
11
READ:List
READ:List
1
11
STOP
PU
STOP
TUNE
TUNE
2
12
STF
FWD
PU
STF
FWD PU
TUNE
TUNE
3
13
COMPLETION
COMPETION
STF
STOP PU
STF
STOP PU
TUNE
9
ERROR
STOP PU
STF
Approximately 25 to 75s
(Tuning time differs according to the inverter capacity and motor type.)
of the operation panel or
of the operation panel. (Turning the start signal (STF
Operation Panel Indication
1
PU
Flickering
Time
Before operation
or
of the parameter unit
11
Flickering
53
3

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