
4. SERVO FUNCTION DETAILS B-65150E/04
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(2) Series and editions of applicable servo software
Series 9041/A(01) and subsequent editions (Series 0-C, 15-A)
Series 9046/A(01) and subsequent editions (Series 0-C, 15-A)
Series 9060/C(03) and subsequent editions (Series 15-B, 16-A, 18-A,
20, 21, Power Mate)
Series 9066/A(01) and subsequent editions (Series 20, 21, Power Mate)
Series 9064/B(02) and subsequent editions (Power Mate-E)
Series 9065/A(01) and subsequent editions (Power Mate-E)
Series 9070/A(01) and subsequent editions (Series 15-B, 16-B, 18-B)
Series 9080/A(01) and subsequent editions (Series 15-B, 16-C, 18-C)
Series 9081/C(03) and subsequent editions (Series 15-B, 16-C, 18-C)
Series 9090/C(03) and subsequent editions (Series 16i, 18i, 21i, Power
Mate i)
Series 90A0/A(01) and subsequent editions (Series 15i, 16i, 18i, 21i,
Power Mate i)
(3) Setting parameters
Specifying the following parameters as a negative value enables the
250 µs acceleration feedback function.
1894 8X66 250 µsec acceleration feedback gain
2066 1066
Setting value = −10 to −20
(4) Caution and note
4.4.2 Velocity Loop High Cycle Management Function
(1) Overview
This function improves the velocity loop gain oscillation threshold.
This is done by performing velocity loop proportional calculation at
high speed, which determines the velocity loop oscillation threshold.
The use of this function enables the following:
• Improvement of the command follow-up characteristic of a
velocity loop
• Improvement of the servo rigidity
CAUTION
If the acceleration feedback gain is too large,
abnormal sound or vibration can occur during
acceleration/deceleration.
To solve this problem, reduce the gain.
NOTE
This function is disabled when the velocity loop high
cycle management function (see Subsec. 4.4.2) is
used.