LSIS XDL-L7SA002X

1. Product Components and Signals
2-8
1.2 System Configuration
1.2.1 Overview
The XDL-L7 servo system can be configured in various ways depending on its interface with
the upper level controller.
(1) Position Operation System
The servo is run by pulse commands. You can change the location of the servo motor by
changing command pulses based on a certain transfer unit.
 Advantage: The structure of the upper level controller is simple because pulse input is linked to
transfer units.
 Disadvantages:
 Fast rotation is compromised when a precise transfer unit is used.
 Response is low because multiple levels of controllers are used.
(2) Speed Operation System
The servo is run by speed commands. There are two types of speed commands: analog
voltage command and digital speed command.
 Advantages:
 The servo responds quickly.
 Precision control is easy.
 Disadvantage: The upper level controller is complex.