
PROGRAMMING20. AXIS CONTROL FUNCTIONS
B–63534EN/02
570
G81 T_ L_ R2; Synchronization start
G80 R2; Synchronization end
T : Number of teeth (range of valid settings: 1–1000)
L : Number of hob threads (range of valid settings: –21 to +21,
excluding 0)
When L is positive, the direction of rotation about the workpiece
axis is positive (+ direction).
When L is negative, the direction of rotation about the workpiece
axis is negative (– direction).
Synchronization
cancellation command
Synchronization start command
Workpiece–
axis speed
Synchronization
state
Acceleration
Deceleration
Spindle
speed
G81R1 command
execution
Acceleration
Synchronization mode
SYNMOD
Deceleration
G80R1 command execution
1. Specify G81R1 to start synchronization.
When G81R1 is specified, acceleration according to the acceleration
rate set in the parameter (No.2135,2136 or No.4384,4385) is performed
on the workpiece axis (slave axis). Once the synchronization feedrate is
reached, synchronization mode signal SYNMOD <F065#6> is set to 1,
and the G81R1 block is terminated.
2. For cancellation, specify G80R1 while the tool is moved away from
the workpiece.
D Acceleration/deceleration
plus automatic phase
synchronization type
Explanations
D Acceleration/deceleration
type