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SD710 Series Servo Drive User's Manual Chapter 7 Auxiliary Functions
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7.28 On-line vibration monitoring (Fn402)
When vibration occurs during operation of the equipment, if this function is executed in the servo ON state, the notch filter
or torque command filter is set according to that vibration frequency, and sometimes the vibration is eliminated.
When online, the vibration frequency of the noise generated by mechanical resonance, etc. is detected, and for that
frequency, the effective torque command filter or notch filter frequency is automatically selected, and the relevant
parameters are automatically set.
(1) Pre-implementation recognition matters
When performing online vibration monitoring, the following checks are performed.
● The parameter
prohibit function (Fn010) is not set to "Prohibit writing".
● Servo is ON
● No over
-travel occurred
● The
correct inertia ratio is set
(2) Operation steps
The procedure is shown below.
Steps
Panel display
Keys used
Operations
1
Press the "MODE/SET" key to select the auxiliary
function. Adjust by pressing the "UP" and "DOWN" keys
until Fn000 is displayed.
2
Adjust by pressing the "UP" or "DOWN" key until Fn207 is
displayed.
3
Press the "DATA/SHIFT" key for about 1 second and "F" is
displayed.
4
(blinking)
Press the "MODE/SET" key, "F" will start flashing and the
frequency detection will start automatically.
5
"F" stops flashing and the frequency checkout ends. If the
detection is normal, the result of the detection is
displayed. The vibration frequency displayed is the
frequency at the maximum peak. To use this detection
frequency, you must go to step 6.
If the value confirms the vibration frequency without
setting the detection result, press the DATA/SHIFT key for
about 1 second to return to step 2.
If the frequency detection fails (more than 8 seconds), "F--
--" is displayed.
When the checkout processing bit ends normally, "no_op"
is displayed.
6
(blinking)
By pressing the "MODE/SET" key, the optimal notch filter
frequency or torque command filter time constant for the
frequency is set automatically. When set normally, the
flashing display shows "donE".
7
Press the "DATA/SHIFT" key for about 1 second to return
to the "Fn402" display.
MODE/SET
Data/
MODE/SET
Data/
MODE/SET
Data/
MODE/SET
Data/
MODE/SET
Data/
MODE/SET
Data/