DA98A AC Servo Drive Unit
User Manual
CHAPTER 1 OVERVIEW
1.1 Introduction
AC servo technology has been advanced and improved since the early of 90
th
last century
and it has been widely applied to the fields such as CNC machine, printing packaging
machinery, textile machinery, automatic production line.
DA98A AC servo drive unit (also called full digital AC servo drive unit) is a new generation of
full digital AC servo drive unit provided by GSK CNC equipment co,. Ltd. The product has
been employed with Digital Signal processor (DSP), Complex Programmable Logic Device
（ CPLD ） and MITSUBISHI Intelligent Power modular(IPM), which has the good
characteristics of high integration, lower volume, complete protection and liability. And it has
applied optimum PID operation for PMW control. So this drive unit has ranked the advanced
level among the same type products in the world.
DA98A AC servo drive unit has following advantages compared to stepping system:
z No out-of-step
Servomotor is employed with an encoder, with position signal feedbacking to AC servo
drive unit, which comprise a semi-closed loop control system as it is combined with an open
loop position controller.
z Wide speed ratio, constant torque
The timing ratio is 1：5000，with stable torque
from low speed to high speed.
z High speed, high precision
The max. speed of servo motor can be 3000rpm,
and position precision of rotating is 1/10000r.
〖Note〗 There are different max. speeds for different servo motor models.
z Simple and flexible control
1
A proper setting for operating
mode, running performance of the
servo system by modifying
parameters is suitable for different
working requirements.
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