Large-Amplitude Frequency Characteristics - YASKAWA SGDB-15VN User Manual

Servodrive Characteristics

3.4 Large-amplitude Frequency Characteristics

When looking at frequency characteristics with a SERVOPACK and Motor combination, the motor
speed amplitude is limited by the peak current through the SERVOPACK. The relationship between
motor speed (N) and frequency (f) is expressed using the equation given below.
a • T R D /. [r I min]
=
N 1 . 5 2 x Gim J
Figure 3.6 M o t o r Current — Motor Speed Timing Chart
3 -6
Motor current
Motor speed