
13
50
FANUC Series 16i-TB
2 CPU 3-path control function
Specifications
-78884E
ED. DATE DESIG. DESCRIPTION
TITLE
DRAW.NO.
01 Aug.01.’02 Newly registered
SHEET
(4) Superimposed Control
The superimposed control function adds the amount of movement of an axis (superimposed
control master axis) to an axis (superimposed control slave axis) for which ordinary move
commands are being executed. This function is similar to synchronous control but differs
from it in that move commands can be issued not only for the master axis but also for the
slave axis. The slave axis moves by the sum of the amount of movement specified by move
commands and the amount of movement commands for the master axis. Appropriate setting
of parameter OMRx (bit3 of parameter No.8162) can reverse the direction in which the
master and slave axes move. The superimposed control for 3-path control can only add the
amount of movement of an axis in path 1 to that of an axis in path 2 and add that to the
amount of movement of an axis in path 3. It is impossible to superimpose except this pattern
in the superimposed control for 3-path control.
(a) Setting
Parameter No.8186 specifies between which axes move commands are to be
superimposed.
(Example)
To superimposed the amount of movement of the Z1-axis to that of the Z2-axis:
Parameter No.8186z of path 2 = 12
To superimposed the amount of movement of the Z2-axis to that of the Z3-axis:
Parameter No.8186z of path 3 = 22
(b) Programming
Use M codes for wait, beginning, and terminating superimposed control in a machining
program in the stated order. It is also possible to begin and terminate composite control
without using M codes.
(c) Signal operation
When superimposed control begins or ends (when an M code is issued),the superimposed
control axis selection signals OVLS1 to OVLS8 for the target slave axis (from the PMC to
the CNC) are changed from "0" to "1" (to begin superimposed control) or from "1" to "0"
( to terminate superimposed control).