Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 431 / 727

(C) Motor constant parameters
430
PARAMETERS
 Performing tuning
POINT POINT
• Before performing tuning, check the monitor display of the operation panel or the parameter unit if the inverter is in the state
ready for tuning. (Refer to 2) below.) Turning ON the start command while tuning is unavailable starts the motor.
• In the PU operation mode, press / on the operation panel.
For External operation, turn ON the start command (STF signal or STR signal). Tuning will start.
NOTE
• 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 on 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 terminals <effective signals>: STP (STOP), OH, MRS, RT, RES, STF, and STR
Output terminals: RUN, OL, IPF, FM, AM, and A1B1C1
• When the rotation speed and the output frequency are selected for terminals FM and AM, the progress status of offline auto
tuning is output in fifteen steps from FM 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.
• Setting offline auto tuning ( Pr.96 Auto tuning setting/status = "1 or 101") will make pre-excitation invalid.
• When the offline auto tuning is selected ( Pr.96 Auto tuning setting/status = "101"), the motor rotates. Take caution and
ensure the safety.
• 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 run 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 the PU operation external interlock (X12) signal ON to tune in the PU
operation mode.
• Monitor is displayed on the operation panel and parameter unit during tuning as below.
• Note: Offline auto tuning time (with the initial setting)
• When offline auto tuning ends, press on 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.)
Pr.96 setting value 1 101 1 101
(1) Setting
Parameter unit display Operation panel display
(2) During tuning
(3) Normal completion
Offline auto tuning setting Time
No motor rotation ( Pr.96 = "1")
Approx. 25 to 120 s
(The time depends on the inverter capacity and motor type.)
With motor rotation ( Pr.96 = "101)
Approx. 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 + approx. 30 s)
STOP PU
1
READ:List
TUNE
STOP PU
101
READ:List
TUNE
AutoTune 12:34
TUNE
1
--- STOP PU
PREV NEXT
AutoTune 12:34
TUNE
101
--- STOP PU
PREV NEXT
FWD PU
2
STF
TUNE
FWD PU
102
STF
TUNE
AutoTune 12:34
TUNE
2
STF FWD PU
PREV NEXT
AutoTune 12:34
TUNE
102
STF FWD PU
PREV NEXT
STOP PU
3
STF
TUNE
COMPLETION
STOP PU
103
STF
TUNE
COMPLETION
AutoTune 12:34
TUNE
Completed
3
STF STOP PU
PREV NEXT
AutoTune 12:34
TUNE
Completed
103
STF STOP PU
PREV NEXT