Yaskawa MP940 Reference Manual - Manual (Page 437)

Position Control MotionSuite™ MP940 Machine Controller Reference Manual
11-40
1. Method for Use as a Position Reference
1. Set the RUN command setting (bit 12 of OWC001) to ON.
2. In the position reference setting (OLC012), set a position buffer number
between 1 ~ 256 instead of the position reference.
By doing so, the data of the position buffer number designated in OLC012
will function as a position reference.
Position Monitor
The following parameters exist for position monitoring.
Motion Monitoring
Parameter Number
(register number)
Name Content
ILC002
Machine Coordinate a Calculation
Position (CPOS).
Messages the calculated machine coordi-
nate position managed by the SVA mod-
ule.The position data messaged to this
parameter is the target position at each
scan. *1
ILC008 Machine Coordinate Feedback
Position (APOS) Messages the machine ccordinate feedback
position.*2
ILC018 Machine Coordinate Command
Position (MPOS) Messages the position output by the SVA
module to the outside and the machine
coordinate reference position.
This position data cannot be updated in the
machine lock state (no output to peripherals
in the machine lock state).
This is the same as ILC002 when the
machine lock function is not used.
ILC02E Command Coordinate
Calculation Position (POS) Significant when the axis selection is “infi-
nite length axis”.
In an infinite length axis, the target position
for each scan is messaged to the position
reference in this parameter.*3
Position Buffer
OLC012 Position Buffer Number
12345
1
OBC001C
OWC001
This value
becomes the
position reference