YASKAWA JUSP-MD D01A Series User Manual page 275

7 Utility Functions (Fn)
(2) Operating Procedure
Use the following procedure.
Step
1
2
3
4
5
6
7
8
7-28
Display after
Operation
MODE/SET
MODE/SET
Setting reference
MODE/SET
amplitude
MODE/SET
MODE/SET
Run ready status
MODE/SET
Display flashes.
MODE/SET
Servomotor
slight movement
Detection result
example
Keys
Press the MODE/SET Key to select the utility function.
DATA/
Press the UP or DOWN Key to select Fn206.
DATA/
Press the DATA/SHIFT Key for approximately one second.
The display shown on the left appears. The panel operator is
in the reference amplitude setting mode.
DATA/
Press the UP or DOWN Key to set a reference amplitude.
Reference amplitude setting range: 1 to 800
Notes:
• At the initial execution of Fn206, do not change the refer-
ence amplitude setting, but start from the initial value 15.
Though increasing reference amplitude increases the
detection accuracy, the vibration and noise occurring on
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.
DATA/
Press the MODE/SET Key to enter Servo ON status (the
servomotor power ON).
Note: Press the MODE/SET Key again to turn the servomo-
tor power OFF. "F" is displayed to indicate the run
DATA/
ready status (step 5).
In the Servo ON status (the servomotor power ON), press
the UP Key (forward) or the DOWN Key (reverse). The ser-
vomotor oscillates (within 1/4 rotation) in automatic opera-
tion. The servomotor performs such movements for
approximately 2 seconds. During this operation, the display
shown on the left flashes.
Notes:
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 flash-
ing and the detected resonance frequency is displayed.
When failing to detect, "F----" is displayed.
To set the detection result, proceed to step 9. To monitor the
resonance frequency without setting the detection result,
press the DATA/SHIFT Key for approximately one second
to return to step 2.
<IMPORTANT>
–
If the operation ended normally but it took two seconds 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 may be
obtained.
Though increasing reference amplitude increases the detec-
tion accuracy, the vibration and noise occurring on the
machine will increase momentarily. Increase the amplitude
value little by little, observing the result.
Operation