User manual

Chapter 6 Control Modes of Operation ASDA-A User Manual
4th Edition 2005/11/30, HE03 © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
6-6
6-2-3 Structure of Position Control Mode
Basic Structure:
Position Command
Position Command
Processing
Position Control
Block Diagram
Speed
Loop
Current
Loop
Output Position
In order to pursue the goal of perfection in position control, the pulse signal should be modified through
position command processing and the structure is shown as the figure below:
P1-00
P1-44, 1-45P
P1-08
P1-15
|
P1-30
P1-44, P1-45
P1-33
P1-01
P1-34,
P1-35,
P1-36
CN1
POS2~ 0
CTRG
POS
Position Command Processing
Electronic gear
ratio
1. Absolute position
control
2. Incremental position
control
S-curve
Filter
Command
selection
Low-pass
Filter
Pulse Signal
Pulse type selection
Counter
Electronic gear ratio
(Pr Mode)
(Pt Mode)
Using parameter can select Pr mode and Pt mode. Electronic gear ratio can be set in both two modes to set
proper position revolution. ASDA-A series servo drive also provides P-curve and low-pass filter, which are
used whenever the motor and load need to be operated more smoothly. As for the information of electronic
gear ratio, P-curve and low-pass filter, please refer to the following sections.