
B–63523EN–1/03
1. AXIS CONTROL
277
D Always set a rotation axis as the workpiece axis (C–axis).
(Set RoTx (bit 0 of parameter No.1006) to 1.)
Set the parameter No. 7705#5 to 0, and set installation ratio with the
spindle (hobbing axis) and position coder in parameter No. 7711.
D When using a spindle other than the first spindle as the hob axis, set
bit 6 of parameter No.3704 to 1. This parameter is valid only when
the multi–spindle control function is added.
D During hobbing synchronization, feed per revolution is performed not
on the spindle but on the workpiece axis (C–axis).
D During helical gear compensation, a rapid traverse command such as
G00, G27, G28, or G30 cannot be specified for the Z–axis. If the
prohibited specification is attempted, alarm 184 will be raised.
D During hobbing synchronization, a rapid traverse command such as
G00, G27, G28, or G30 cannot be specified for the workpiece axis
(C–axis). If the prohibited specification is attempted, alarm 184 will
be raised.
D Hobbing synchronization can be performed only when the hob axis
(spindle), workpiece axis (C–axis), and Z–axis are included in the
same path.
Number Message Description
010 IMPROPER G–CODE 1 Although the optional function for
hobbing machine is not added,
G80.4 to G84.4 or G80 to G84 is
specified.
2 While bit 5 of parameter No.7701 is
held to 0, G84.4 or G84 is specified.
181 FORMAT ERROR IN
G81.4/G81 BLOCK
The G81.4/G81 block is not of the cor-
rect format.
1 R (number of teeth) has not been
specified.
2 Data specified for R, L, Q, or P falls
outside the valid data range.
182 G81.4/G81 NOT COM-
MANDED
G83.4/G83 (C–axis servo delay com-
pensation) was specified when
G81.4/G81–based synchronization
had not been specified.
183 DUPLICATE G83.4/G83
(COMMANDS)
G83.4/G83–based C–axis servo delay
compensation was requested again
before the previous request had been
canceled using G82.4/G82.
D Setting the workpiece
axis (C axis)
D Gear ratio of spindle
(hobbing axis) and
position coder
D Hob axis other than the
first spindle (T series)
D Feed per revolution
during the hobbing
synchronization
D Rapid traverse during
the hobbing
synchronization (T
series)
D Hobbing synchronization
with the multi–path
system
Alarm and message