
B–63523EN–1/03
1. AXIS CONTROL
267
D Method by which the delay before change is recorded
G82.4/G82 : Cancels C–axis servo delay compensation.
G83.4/G83 : Applies compensation for the difference between the
C–axis servo delay, observed when G83.4/G83 is
specified, and the delay recorded by G84.4/G84.
G84.4/G84 : Records the C–axis servo delay observed when
G84.4/G84 is specified. (The recorded value remains
as is until G81.4/G81 is specified or another G84 is
specified.)
(Example)
G81(G81.4) T___ L___ ; Starts synchronization.. .
M03 S100 ; Rotates the hob axis.. .
G04 P2000 ; Causes the tool to dwell to assure. .
constant hob axis rotation.
G84(84.4) ; Records the C–axis servo delay at. .
the current speed.
G01 X___ F___ ;
.
.
.
S200 ; Changes the speed.. .
G04 P2000 ; Records the C–axis servo delay at. .
the current speed.
G01 G83 F___ ; Applies C–axis delay. .
compensation.
NOTE
1 Specify the G83.4/G83 block in G01 mode. Also, specify a
feedrate using the F code.
2 Once G83.4/G83 has been specified, another G83.4/G83
command cannot be specified until compensation is
canceled by specifying G82.4/G82, or until C–axis
synchronization is canceled.
3 Specify G83.4/G83 once a constant hob axis rotation speed
has been achieved.
4 In C–axis servo delay compensation (G83.4/G83),
compensation is not applied to the integer part of the gear
pitch. The compensation direction is opposite to that of the
C–axis rotation.
5 During helical gear compensation, G00, G28, or G30
cannot be specified for the Z–axis or C–axis. If the
prohibited specification is attempted, alarm 184 will be
raised.
6 During helical gear compensation, travel on the Z–axis or
C–axis cannot be made by manual rapid traverse. Travel
by jog feed is performed.