Fagor BCSD-08AMA-01, User Manual

Page: 71 / 118

Digital Brushless AC S ervo D rive system - Ref. 1809 BCSD-71/116
4.6. Online Autotuning
4.6.1. Online Autotuning
Online autotuning calculates the load moment of inertia during operation of the servo drive and sets
parameters so that the servo gains consistent with the machine rigidity are achieved.
Online autotuning may not be effective in the following cases.
• The motor high speed is lower than 100 rpm.
• The motor acceleration or deceleration is lower than 5000 rpm/s.
• Load rigidity is low and mechanical vibration occurs easily or friction is high.
• The speed load moment is changed greatly.
• Mechanical gas is very large.
If the condition meets one of the above cases or the desired operation cannot be achieved by the online
autotuning, set the value in Pn106 (Load inertia percentage) and perform the adjustment manually.