Mitsubishi Electric MELSERVO-J4 series, Инструкция по эксплуатации

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17 APPLICATION OF FUNCTIONS
17.5 Machine diagnosis function
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17
Vibration estimation function/vibration failure prediction function
Use the vibration estimation function or the vibration failure prediction function with the following procedure. In the vibration
failure prediction function, a threshold that outputs a warning can be automatically calculated in the servo amplifier with
"Automatic threshold setting", or set by using parameters with "Manual threshold setting". With the manual threshold setting,
you can set any threshold that outputs a warning.
*1 If the equipment is operated continuously for less than 3 hours, and operated in the position mode or velocity mode for a cumulative time
of less than 90 hours, a threshold is not calculated automatically.
*2 You can save the data of the estimated static friction and dynamic friction on the machine diagnosis screen of MR Configurator2.
Start
Start the system. (Refer to chapter 4.)
Which function do you use?
Has the threshold been created?
How do you set the threshold?
Manual threshold setting Automatic threshold setting
NO
YES
Vibration estimation function
Drive the servo motor.
The vibration level and vibration frequency are estimated.
Save the estimated vibration level and vibration frequency.
Vibration failure prediction function
Set "Vibration failure prediction warning selection (_ _ x _)" in
[Pr. PF34] to "_ _ 2 _ (manual threshold setting)". Set "Vibration failure prediction warning selection (_ _ x _)" in
[Pr. PF34] to "_ _ 1 _ (automatic threshold setting)".
Save the estimated vibration level and vibration frequency.
*2
Save the estimated vibration level and vibration frequency.
*2
[Pr. PF45 Vibration failure prediction - Average characteristic] and
[Pr. PF46 Vibration failure prediction - Standard deviation] are
changed based on the estimated vibration level.
Drive the servo motor. Drive the servo motor.
The vibration level and vibration frequency are estimated.
The threshold is automatically calculated.
*1
[Pr. PF34 (_ _ x _)] is set to "_ _ 2 _".
The vibration level and vibration frequency are estimated.
Use the following parameters to set the threshold.
[Pr. PF45 Vibration failure prediction - Average characteristic]
[Pr. PF46 Vibration failure prediction - Standard deviation]
"Vibration failure prediction - Threshold multiplication
(_ _ x _)" in [Pr. PF40 Machine failure prediction parameter]
End
Vibration failure prediction is performed.
When the vibration level at servo motor operation exceeds the
threshold, [AL. F7.1 Vibration failure prediction warning] will occur.