Fuji Electric ALPHA7, User Manual

Page: 345 / 662

CHAPTER 5 SERVO ADJUSTMENT
5-28
Special Adjustment (Vibration Suppression)
5
5.9.2 Automatic Vibration Suppression
Automatic vibration suppression is a function for automatically adjusting the vibration suppressing anti
resonance frequency to the optimum value.
Follow the procedure below.
 Automatic vibration suppression setting procedure
[1] Set PA1_77 (automatic vibration suppression selection) at 1 (enable).
[2] Perform profile operation or issue position commands from the host unit to start and stop the
servomotor nine times.
[3] Set the dwell at 1.5 [s] or longer.
[4] After operation is normally finished, the optimum value is automatically stored in PA1_78 (vibration
suppressing anti resonance frequency 0).
[5] Upon a fault (if no effect is verified), PA1_78 (vibration suppressing anti resonance frequency 0)
remains the default value.
[6] After normal or faulty completion, PA1_77 (automatic vibration suppression selection)
automatically changes to 0 (disable).
* The applicable frequency is 1 [Hz] to 100 [Hz].
If the procedure is interrupted at eight or fewer cycles and the main power is turned off, the cycle count
begins from 1 again.
 Learning state of automatic vibration suppression
Use the monitor of the PC Loader to monitor the learning state of the automatic vibration
suppression.
If no expected effect is obtained under automatic vibration suppression, refer to the following "5.9.3
Manual Adjustment of Vibration Suppression."