Mitsubishi Electric FR-F820-00046 Instruction Manual page 371

Fr-f800 series
Hide thumbs Also See for FR-F820-00046:
Table of Contents

Advertisement

NOTE
• Satisfy the required inverter start conditions to start offline auto tuning. For example, stop the input of the MRS signal.
• To force tuning to end, use the MRS or RES signal or
(Turning OFF the start signal (STF signal or STR signal) also ends tuning.)
• During offline auto tuning, only the following I/O signals are valid (initial value).
Input terminals <valid signals>: STP (STOP), OH, MRS, RT, RES, STF, STR, S1, and S2
Output terminals: RUN, OL, IPF, FM/CA, AM, A1B1C1, and So (SO)
• When the rotation speed and the output frequency are selected for terminals FM/CA and AM, the progress status of offline
auto tuning is output in 15 steps from FM/CA and AM.
• Do not perform ON/OFF switching of the Second function selection (RT) signal during offline auto tuning. Auto tuning will not
be performed properly.
• When the offline auto tuning with motor rotation is selected (Pr.96 Auto tuning setting/status = "101"), take caution and
ensure safety against the rotation of the motor.
• Since the Inverter running (RUN) signal turns ON when tuning is started, pay close attention especially when a sequence which
releases a mechanical brake by the RUN signal has been designed.
• When executing offline auto tuning, input the operation command after switching ON the main circuit power (R/L1, S/L2, T/L3)
of the inverter.
• While Pr.79 Operation mode selection = "7", turn ON the PU operation external interlock (X12) signal for tuning in the PU
operation mode.
• During tuning, the monitor is displayed on the operation panel as follows.
Tuning status
(2) During tuning
(3) Normal
completion
• Note: Offline auto tuning time (with the initial setting)
Offline auto tuning setting
No motor rotation (Pr.96 = "1")
With motor rotation (Pr.96 = "101")
• When offline auto tuning ends, press
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.)
NOTE
• The motor constants measured once during offline auto tuning are stored as parameters and their data are held until offline
auto tuning is performed again. However, the tuning data is cleared when performing All parameter clear.
• Changing Pr.71 (Pr.450) after tuning completion will change the motor constant. For example, if "3" is set in Pr.71 after tuning
is performed with Pr.71 = "0", the tuning data becomes invalid. To use the tuned data, set "0" again in Pr.71.
370
5. PARAMETERS
5.10 (C) Motor constant parameters
Operation panel (FR-DU08) display
Pr.96 = 1
Pr.96 = 101
Blinking
About 25 to 120 s (The time depends on the inverter capacity and motor type.)
About 40 s (The following offline auto tuning time is set according to the acceleration/deceleration time
setting. Offline auto tuning time = acceleration time + deceleration time + about 30 s)
on the operation panel during PU operation. For External operation, turn OFF
on the operation panel.
LCD operation panel (FR-LU08) display
Pr.96 = 1
AutoTune
12:34
TUNE
1
--- STOP
PU
PREV
NEXT
AutoTune
12:34
TUNE
2
STF
FWD
PU
PREV
NEXT
AutoTune
12:34
TUNE
3
Completed
STF STOP
PU
Blinking
PREV
NEXT
Time
Pr.96 = 101
AutoTune
12:34
TUNE
101
--- STOP
PU
PREV
NEXT
AutoTune
12:34
TUNE
102
STF
FWD
PU
PREV
NEXT
AutoTune
12:34
TUNE
103
Completed
STF STOP
PU
PREV
NEXT

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents