
14
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
(d) Feedrate
Because the amount of movement of the master axis is added to that of the slave axis,
the resulting speed of the slave axis may become much more larger than a normal speed
(such as rapid traverse speed specified in a parameter). To solve this problem, it is
necessary to set feedrates that are used only during superimposed control. The feedrates
and time constants that are used only during superimposed control include:
Rapid traverse rate: Parameter No.8190
Rapid traverse override F0 rate: Parameter No.8191
Rapid traverse linear acceleration/deceleration time constant: Parameter
No.8192
Maximum cutting feedrate: Parameter No.8193
Manual rapid traverse rate: Parameter No.8190 or 1424 whichever is smaller
These special parameter are used for both master and slave axes during superimposed
control. Appropriate values should be specified with the resulting federate taken into
account. When superimposed control begins or ends during automatic operation, it is
impossible to switch the maximum cutting feedrate in the current block and the next
block. If an M code that does not involve buffering is used to direct superimposed control
to begin or end, the maximum cutting feedrate is switched in a block next to the current
block. The rates other than the maximum cutting feedrate are switched immediately
when superimposed control begins or ends.