Mitsubishi Electric 800 Series Instruction Manual page 441

(C) Motor constant 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. Turning ON the start command while tuning is unavailable starts the motor.
• In the PU operation mode, press
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
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.
• A motor with 14 or more poles cannot be tuned.
• 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.
Pr.96 (Pr.463) Setting
(1) Setting
(2) During tuning
(3) Normal completion
440
PARAMETERS
/ on the operation panel.
1
Parameter unit display
READ:List
TUNE
1
STOP PU
TUNE
2
STF FWD PU
TUNE
3
COMPLETION
STF STOP PU
on the operation panel. (Turning the start signal (STF
1
Operation panel display
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
PREV NEXT