ADLINK PCI-8134A - Manual (Page 59)

Operations
• 49
•
Home point is at the first edge of ORG signal when home move executing.
At left or right side of edge depends on home move direction.
•
If axis is not at ORG, the axis will search the edge of ORG as home point.
•
In Case 1, the axis will slow down and reverse to search the ORG edge
again and then stop at the edge of ORG signal precisely.
•
The feedback counter of PCI-8134A will be reset to zero while the motion
is hitting the edge of ORG signal.
•
In Case 2, the axis will be standstill and reset counter to 0 but won’t issue
home interrupt.
•
After normal home finished like case 1, users have to copy to position
value to command counter and target position counter at the same time.
While the motion hits the edge of ORG or EL
Set_cnt_src()=0 (internal) set_cnt_src ()=1 (external)
Get_command(
) get_position() get_command() get_position()
Case 1 Doesn’t change Reset to 0 Doesn’t change Reset to 0
Case 2 Doesn’t change Stand Still Doesn’t change Stand Still
Case 3 Doesn’t change Stop at a EL position Doesn’t change Stop at a EL position
Counter status after Home Move Completed (Motion Done)
set_cnt_src()=0 (internal) set_cnt_src ()=1 (external) Interrupt?
get_command() get_position() get_command() get_position
()
Case
1 Doesn’t change Remain 0 Doesn’t change Remain 0 Home Int
Case
2 Doesn’t change Reset to 0 Doesn’t change Reset to 0 No Int
Case
3 Doesn’t change Stop at a EL
position Doesn’t change Stop at a EL
position EL Int