
6. C–AXIS CONTROL
B–63123EN/01
118
The N110 block specifies a tool change command. So, C–axis offset is
canceled, and reference position return is performed.
The N120 block specifies rotary tool T10. So, C–axis movement by 90.00
deg plus an offset of 0.1 deg is performed once positioning along the
X–axis, Y–axis, and T–axis has been completed, and completion signal
FIN for the T command is returned.
The N130 block performs reference position return while cancelling
C–axis offset.
C–axis offset is canceled by the following programmed commands:
(a) T command
(b) G28 command
C–axis offset is not canceled by a reset, but can be canceled by setting bit
0 (RC0) of parameter No. 16362. When C–axis synchronization control
is applied, and the C
1
–axis offset differs from the C
2
–axis offset, however,
the (C
1
– C
2
) offset is not canceled. Instead, this (C
1
– C
2
) offset is
canceled upon execution of the next T command or G28 command.
CAUTION
1 When using this function, set bit 2 (MAI) of parameter No.
16360 to 1 and bit 3 (MAB) of parameter No. 16360 to 0.
2 When using this function, enable movement along the T
axis (by setting bit 5 (CRM) of parameter No. 16362 to 0)
only when the tool is at the reference position on the C–axis.
3 When multiple–tool control is applied together with this
function, this function is applied to the multiple–tool holder.
Set the number of the multiple–tool holder as that of a tool
that supports angle change.
4 If the C
1
–axis offset differs from the C
2
–axis offset when
C–axis synchronization control is applied, no
synchronization error check is made as part of an offset
operation or C–axis positioning including offset
cancellation.
Cancelling the offset