MOTION CONTROL
ADVANCED MICRO CONTROLS INC.
2
14
Defining Home Position (continued)
Find Home CW & Find Home CCW Commands (continued)
All of following diagrams show the results of Find Home CW Commands. Profiles for Find
Home CCW commands would be identical if a CCW Limit switch was used instead of a CW
Limit switch.
Simple Homing Profile
Figure 2.4 Simple Homing Profile
1) Begin move at the Starting Speed and accelerate to Programmed Speed.
2) Run at the Programmed Speed until Home Input activates.
3) Decelerate to the Starting Speed and stop. Wait 2 seconds before continuing.
4) Accelerate to the Programmed Speed in the direction opposite of the commanded direction.
5) Run in the direction opposite of the requested direction until the Home Input transitions from Active to
Inactive.
6) Decelerate to a stop and wait 2 seconds.
7) Return to the Home Input at the programmed Starting Speed. Stop when the Home Input transitions
from Inactive to Active.
Overtravel Limit Activates During Homing Profile
Figure 2.5 Overtravel Limit Activates During Homing Profile
1) Begin move at the Starting Speed and accelerate to Programmed Speed.
2) Run at the Programmed Speed until Home Input activates.
3) Unit hits end of travel limit and immediately stops. The SD17060E waits 2 seconds before
continuing.
4) Accelerate to the Programmed Speed in the direction opposite of the commanded direction.
5) Run in the direction opposite of the requested direction until the Home Input transitions from Active to
Inactive.
6) Decelerate to a stop and wait 2 seconds.
7) Return to the Home Input at the programmed Starting Speed. Stop when the Home Input transitions
from Inactive to Active.
(CW)
(CCW)
SP
EE
D
POSITION
Starting Speed
Starting Speed
Home Limit
Switch
➀
➀
➀
➀
➁
➁
➁
➁
➂
➂
➂
➂
➃
➃
➃
➃
➅
➅
➅
➅
➄
➄
➄
➄
➆
➆
➆
➆
(CW)
(CCW)
SP
EE
D
POSITION
Starting Speed
Starting Speed
Home
Limit
Switch
➀
➀
➀
➀
➁
➁
➁
➁
➂
➂
➂
➂
➃
➃
➃
➃
➅
➅
➅
➅
➄
➄
➄
➄
➆
➆
➆
➆
CW
Overtravel
Limit