User Manual Of EL7-EC** AC Servo
10
Chapter 1 Introduction
1.1 Product Introduction
EL7-EC Series AC servo products are high performance AC digital servo which is
designed for position/velocity/torque high accurate control with power rating ranging up
to 2kW which provides a perfect solution for different applications with easy tuning
process. Based on the ETG COE + CANopen DSP402 protocol, it can be seamlessly
connected to controllers/drives that support this standard protocol.
EL7-EC series AC servo drives are using the latest Digital Signal Processing (DSP) chip
and Intelligent Power Module (IPM) with compact components integration and great
reliability. Using the best PID calculation for Pulse Width Modulation (PWM) control, our
EL7-EC series products are the one to beat in this product category.
In comparison to conventional pulse controlled servo drives, our EL7-EC provides
advantages as listed below.
Lengthen communication range and lower electromagnetic interference
Due to the reliance of pulse command, pulse controlled servo drives could be easily
disrupted by electromagnetic interferences. EtherCAT communication protocol
provides fault detections limitations and error handling that makes communication
more reliable over long distances.
Greater motion control
Trajectory generation can be done within the driver under non-cyclic synchronous
mode. Controller only needs to deliver target position, velocity and acceleration
commands to the driver. Drivers can then achieve greater control by applying
feedforward to the commands.
Simplify complex wiring work
Using EtherCAT communication protocols, the connections between master device
and slave stations can be realized using only LAN cables.
Reduce cost by lowering the requirement for more ports
Multiple axes control can be realized without requirement for more ports or pulse
module on the master device/controller. Only a network port is needed to chain the
axis controller (drivers) together in series.
