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10/24 BCN-C22005-634
2)Monitor is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU07/FR-PU04) during
tuning as below.
3)When offline auto tuning ends, press of the operation panel during PU operation. For External
operation, turn OFF the start signal (STF signal or STR signal).
This operation resets the offline auto tuning and the PU's monitor display returns to the normal indication.
(Without this operation, next operation cannot be started.)
4)If offline auto tuning ended in error (see the table below), motor constants are not set.
Perform an inverter reset and restart tuning.
5)When tuning is ended forcibly by pressing or turning OFF the start signal (STF or STR) during
tuning, offline auto tuning does not end properly. (The motor constants have not been set.)
Perform an inverter reset and restart tuning.
Parameter Unit
(FR-PU07/FR-PU04) Display
Operation Panel (FR-DU07) Display
Pr. 96 setting
111 1 11
(1) Setting
(2) Tuning in progress
(3) Normal end
(4) Error end
(when the inverter
protective function
is activated)
REMARKS
· The motor constants measured once in the offline auto tuning are stored as parameters and their data are held
until the offline auto tuning is performed again.
· Changing Pr. 96 setting from "3 or 13" after tuning completion will invalidate the tuning data. In this case, tune
again.
Error Display Error Cause Remedy
8 Forced end Set "1" or "11" in Pr. 96 and perform tuning again.
9 Inverter protective function operation Make setting again.
92
Converter output voltage has reached 75%
of rated value.
Check for fluctuation of power supply voltage.
93
Calculation error
A motor is not connected.
Check the motor wiring and make setting again.
CAUTION
· An instantaneous power failure occurring during tuning will result in a tuning error.
After power is restored, the inverter goes into the normal operation mode. Therefore, when STF (STR) signal is
ON, the motor runs in the forward (reverse) rotation.
· Any alarm occurring during tuning is handled as in the ordinary mode. Note that even if a retry operation has been
set, retry is not performed.
· The set frequency monitor displayed during the offline auto tuning is 0Hz.
CAUTION
Note that the motor may start running suddenly.
STOP PU
1
READ:List
STOP PU
11
READ:List
FWD PU
2
STF
TUNE
FWD PU
12
STF
TUNE
STOP PU
3
STF
TUNE
COMPLETION
STOP
PU
13
STF
TUNE
COMPETION
Flickering
Flickering
STOP PU
9
STF
TUNE
ERROR
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