4-111
4-2 Function Mode
4
Functions
Operating Procedure
(1) Set auto-tuning selection H001 to "01" or "02".
(2) Turn on the RUN command.
Turning on the RUN command starts automatic operation in the following sequence.
Note 1: When "auto-tuning without motor rotation" is selected (H001 = 01), steps (4) and (5) are not
performed.
Note 2: The rotation frequency in step (5) is defined as follows ("T" is whichever larger value of
acceleration time or deceleration time in step (4)):
When T 0 50 s, x = 40%
When 50 s T 100 s, x = 20%
When 100 s T, x = 10%
Note 3: The auto-tuning result is displayed as follows:
If auto-tuning abnormally ends, perform it again.
(Press the STOP/RESET key to clear the display.)
Note 4: If a trip occurs during auto-tuning, the auto-tuning processing is forced to stop.
(No error message appears. Trip display is given higher priority.)
After removing the cause of a trip, perform the auto-tuning again.
Note 5: If the auto-tuning is interrupted by STOP command input (by pressing the STOP key or by
turning off the RUN command), the parameters for auto-tuning may remain in the Inverter.
To perform the auto-tuning again, initialize the parameters, and then set each parameter
again. (This also applies when you restart ordinary operation.)
Note 6: If the offline auto-tuning is performed with "free V/f setting" selected as the control method,
the Inverter displays an error message and stops processing.
Note 7: Even if auto-tuning is completed normally, the Inverter cannot be operated with the tuning
data. To do so, be sure to set motor parameter selection H002 to "01".
Online Auto-Tuning Function
•Online auto-tuning compensates for changes in motor parameters resulting from a motor
temperature rise or other factor, thus ensuring stable operation.
•This function is applicable to 1st/2nd control, not to 3rd control.
Note the following before use:
•Be sure to perform the offline auto-tuning before the online auto-tuning.
(1) 1st AC excitation (Motor does not run.)
(2) 2nd AC excitation (Motor does not run.)
(3) 1st DC excitation (Motor does not run.)
(4) V/f operation (Motor accelerates up to 80% of the base frequency.)
(5) SLV operation (Motor accelerates up to x% of the base frequency.)
(6) 2nd DC excitation (Motor does not run.)
(7) The auto-tuning result is displayed.
_k_k_ko
Normal end
_k_k_kz
Abnormal end
Parameter No. Function name Data Default setting Unit
H002/H202 Motor parameter selection
00: Standard motor parameter
01: Auto-tuning parameter
02: Auto-tuning parameter
(Online auto-tuning data enabled.)
00
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