User manual

Chapter 6 Control Modes of Operation ASDA-A User Manual
4th Edition 2005/11/30, HE03 © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
6-38
6-6 Others
6-6-1 Speed Limit
The max. servo motor speed can be limited by using parameter P1-55 no matter in position, speed or torque
control mode.
The command source of speed limit command is the same as speed command. It can be the external analog
voltage but also can be internal parameters (P1-09 to P1-11). For more information of speed command
source, please refer to chapter 6-3-1.
The speed limit only can be used in torque mode (T mode) to limit the servo motor speed. When the torque
command is the external analog voltage, there should be surplus DI signal that can be treated as SPD0~1
used to select speed limit command (internal parameter). If there is not enough DI signal, the external
voltage input can be used as speed limit command. When the setting value of X in P1-02 is equal to 1, the
speed limit function is activated.
The timing chart of speed limit is shown as the figure below:
X=1 in P1-0
2
SPD0~1 INVALID
SPD0~1 VALID
X=0 in P1-02
Figure 4. : Command Source Selection of Speed Limit