Mitsubishi Electric FR-A701 Instrucion Manual page 81

Before operation
(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.
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
(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.
· 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.
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 value is set)
Offline Auto Tuning Setting
Non-rotation mode (Pr. 96 = "1")
Rotation mode (Pr. 96 = "101")
74
/
Parameter Unit
(FR-PU07/FR-PU04) Display
1 101
101
1
STOP
STOP PU
TUNE TUNE
2 102
STF FWD
STF FWD PU
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)
of the operation panel.
of the operation panel.
Operation Panel (FR-DU07) Display
1
PU
PU
103
PU
101
Flickering
Time
Flickering