YASKAWA SGMJV User Manual page 301

Display after
Step
Operation
4
5
Run ready status
6
Display blinks
7
Servomotor
small movement
8
Detection result
example
9
Keys
Press the UP or DOWN Key to set a reference amplitude.
Reference amplitude setting: 1 to 800
Notes:
• At the initial execution of Fn206, do not change the refer-
ence amplitude setting, but starts from the initial value
15. Though increasing reference amplitude increases the
detection accuracy, the vibration and noise occurring on
MODE/SET DATA/
the machine will increase momentarily. Increase the
amplitude value little by little, observing the result.
• The set value of reference amplitude is stored in Pn456.
Press the DATA/SHIFT Key for approximately one second
to enter the run ready status.
MODE/SET DATA/
Press the MODE/SET Key to enter Servo ON status (the
servomotor power ON)
Note: Press the MODE/SET Key to turn the servomotor
power OFF. "F" is displayed to indicate the run ready
MODE/SET DATA/
status.
In the Servo ON status (the servomotor power ON), press
the UP Key (forward) or the DOWN Key (reverse). The
servomotor performs a few to-and-from movements within
1/4 rotation in automatic operation. The motor performs
such movements for approximately 2 seconds. During this
operation, the display shown on the left blinks.
Notes:
MODE/SET DATA/ • Press the MODE/SET Key to stop the servomotor. No
detection is executed. "F." is displayed to indicate the run
ready status (step 5).
• Do not enter the machine's working area, because the ser-
vomotor rotates. Some noise may result.
At normal completion of the detection, "E_FFt" stops blink-
ing and the detected resonant frequency is displayed. When
failing to detect, "F----" is displayed.
To monitor the resonance frequency without setting the
detection result, press the DATA/SHIFT Key. To set the
detection result, proceed to step 9.
<IMPORTANT>
If the operation ended normally but it took two second or
more, the detection accuracy may not be good. Set the
reference amplitude little higher than 15 in step 4 and re-
execute the operation. A higher detection accuracy be
obtained.
Though increasing reference amplitude increases the detec-
tion accuracy, the vibration and noise occurring in the
machine will increase momentarily. Increase the amplitude
value little by little, observing the result.
Press the DATA/SHIFT Key for approximately one second.
The servomotor turns OFF and the utility function mode
display appears.
MODE/SET DATA/
7.21 EasyFFT (Fn206)
Operation
7
7-33