
4.SERVO FUNCTION DETAILS B-65270EN/05
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- Adjustment procedure for damping compensation
1 Enable the velocity feedback average function.
[No. 1952#2 (Series 15i), No. 2008#2 (Series 30i, 16i, and so on)
= 1]
2 Set an adequate preload value.
[No. 1980 (Series 15i), No. 2087 (Series 30i, 16i, and so on)]
Set a value slightly larger than the load applied during
movement.
3 If dual-position feedback function is used, set a time constant of
200 [No. 1973 (Series 15i), No. 2080 (Series 30i, 16i, and so
on)].
Adjust the setting of the parameter to ensure stable axis
movement.
4 Set 0 or 512 as phase coefficient α.
[Sub-axis No.1721 (Series 15i), No. 2036 (Series 30i, 16i, and so
on)]
If 512 is set, the value may have to be reduced when the
vibration phase difference between the motors is other than 180°.
(See Fig. 4.18.2 (b).)
5 Set a damping gain of 3277.
[Main axis No. 1721 (Series 15i), No. 2036 (Series 30i, 16i, and
so on)]
To reduce the vibration, this value must be increased or
decreased.
Be careful not to increase this value excessively. Otherwise,
high-frequency vibration will occur.
When adjusting this parameter, apply the maximum axis load.
6 Repeat steps 2 through 5 until smooth movement is achieved.