Chapter 1 Summary
1
Chapter 1 Summary
1.1 Product Overview
The AC servo technology has been proved since the early 1990s. With ever-improving
performance, it is widely applied to NC machine tools, printing and packaging machines, textile
machines, automated production lines and other areas of automation.
DA98E series AC servo Drive Unit (also known as bus-oriented AC servo Drive Unit) is a
new generation of products with an up-to-date industrial Ethernet bus communication
interface developed by us.
The external control device for the series of Unit can communicate with several GSK-LINK
bus-oriented AC servo Drive Unit through only one network cable. They feature simple interfaces,
easy installation and high compatibility. Through a high-speed and reliable GSK-LINK field bus and
protocol, a NC system may receive/send diversified data including position, speed command, motor
encoder data, controlling parameters for current loop, speed loop and position loop, state parameters
of drive unit and other messages from/to a servo Drive Unit. By supporting diversified data, the
system may exert control over the operation of a motor and better realize the real-time monitoring of
the control and drive Unit through configuration of position, speed command and adaptive
parameters of the system, thereby further improving the processing efficiency and accuracy of the NC
system. With a built-in advanced and dedicated chip for control over the motor, a FPGA
(Field-Programmable Gate Array) and a new IPM intelligent power module, the servo drive unit is
characterized by high integrity, compactness, complete protection and high reliability.
DA98E AC servo unit has the following advantages over step drive Unit:
z
No out-of-step
The servomotor is provided with an encoder that
feeds back position signal to the servo drive unit
and exerts semi-closed loop control with an
open-loop control device.
z
Wide speed ratio and constant torque
Speed regulation ratio of 1: 5000 and constant
torque characteristics at low to high speed;
z
Incremental encoders or Tamagawa 17-bit
absolute encoders are available upon customer’s request.
z
High speed and accuracy
Maximum rotating speed of servomotor: 3,000 rpm; rotary positioning accuracy: 1/10,000r
Note: The maximum rotating speed of servomotor varies with its model.
Open-loop control
Stepper motor
Controller
Summary of Contents for DA98E Series
Page 1: ......
Page 20: ...Chapter 1 Summary 11 2 Appearance of Servomotor ...
