B–63010EN/02
4. DESCRIPTION OF PARAMETERS
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0 : In G84 mode, the spindle rotates in a normal direction. In G74 mode,
the spindle rotates in reverse.
1 : In G84 mode, the spindle rotates in reverse. In G74 mode, the spindle
rotates in a normal direction.
REF Feed forward during movement from the initial point to point R in rigid
tapping is:
0 : Disabled.
1 : Enabled.
When this parameter is set, the following function is also enabled:
D When rigid tapping is specified in look–ahead control mode, the
system automatically exits from look–ahead control mode and
executes rigid tapping. After termination of rigid tapping, the system
automatically returns to look–ahead control mode.
RGS When bit 0 (MIF) of parameter No. 1403 is set to 1 and rigid tapping is
specified in feed–per–minute mode, the spindle speed becomes:
0 : 1/1000 of the specified speed.
1 : 1/1 of the specified speed.
OVS In rigid tapping, override by the feedrate override signal and invalidation
of override by the override cancel signal is:
0 : Disabled.
1 : Enabled.
Setting this parameter enables override by the feedrate override signal
<G012> to be applied for rigid tapping operation (cutting and extraction)
in rigid tapping.
The spindle speed override is fixed to 100%, but override is also applied to
the spindle speed in synchronization with the feedrate along the tapping
axis by feedrate override.
The override cancel signal OVC <bit 4 of G006> and second feedrate
override signal <G013> also become available.
NOTE
1 When this parameter is set to override the feedrate, override
by parameters (see parameters Nos. 5211 (T/M) and 5381
(M)) is disabled.
2 Regardless of whether this parameter is set, when feedrate
override is disabled by the override cancel signal OVC <bit
4 of G006>, override by parameters (see parameters Nos.
5211 (T/M) and 5381 (M)) is enabled.
3 An option is required separately to use the second feedrate
override signal <G013>.
RBL As acceleration/deceleration for rigid tapping cutting feed:
0 : Linear acceleration/deceleration is used.
1 : Bell–shaped acceleration/deceleration is used.
NOTE
The bell–shaped acceleration/deceleration option for rigid
tapping is required.