YASKAWA SVC - Page 349

5.1 Motion Parameters
5.1.4 Position References
5-8
 Setting Method 2
 Using the Incremental Value Addition Method (When Bit 5 in OW09 Is Set to 0)
Incremental value = Target position (a value between 0 and POSMAX) - Previous target position
(a value between 0 and POSMAX) + POSMAX × n
OL
 1C = OL  1C + Incremental value
Previous target position: The directly specified value or the value that was stored in a location
such as an M register.
n is the number of POSMAX turns needed to move from the current position (CPOS) to the tar-
get position. When the distance between the target position and the current position is within
the first turn, n is 0.

Using the Absolute Value Specification Method (When Bit 5 in OW09 Is Set to
1)
Incremental value = Target position (a value between 0 and POSMAX) - Previous target position
(a value between 0 and POSMAX) + POSMAX × n
OL
 1C = IL  14 (DPOS) + Incremental value
Previous target position: The directly specified value or the value that was stored in a location
such as an M register.
n is the number of POSMAX turns needed to move from the current position (CPOS) to the tar-
get position. When the distance between the target position and the current position is within
the first turn, n is 0.
Make sure that the absolute value specification method setting is retained after the target posi-
tion is changed.
When n = -2
Important
Example
POSMAX
0
2
31
-1
0
-2
31
IL10 (CPOS)
IL
12 (MPOS)
IL
16 (APOS)
IL
18 (LPOS)
IL
0E (TPOS)
IL
14 (DPOS)
Target Position before
Change (0 to POSMAX)
Target position
(0 to POSMAX)