
B--63003EN--1/02
1. AXIS CONTROL
202
When the rotation of the position coder is stopped, setting the
one--rotation signal set signal MSPC to 1 causes the position of the
one--rotation signal to shift in the CNC as if the one--rotation signal had
been output with the position coder at the current position.
When the shift request is accepted, the one--rotation position setting
completed signal MSPCF is output. According to this signal, the operator
knows when the one--rotation signal position is shifted. The shift request
is accepted if the C--axis is in sync--off state (G80). The shift request is
canceled when the synchronization cancel command (such as G80 or a
reset) is issued.
In both automatic and manual operation modes, setting the retract signal
RTRCT to 1 (the rising edge is detected) enables retraction over the
distance specified by parameter No. 7741, along the axis set by bit 0
(RTRx) of parameter No. 7730.
Upon the completion of retraction, the retract completed signal RTRCTF
is output.
D The feedrate used for retracting is that specified using parameter No.
7740. Feedrate override is not supported for retracting.
D Feed hold is not supported for retraction.
D If the retract signal becomes 1 during automatic operation, retraction
occurs, and automatic operation is discontinued.
D The retract completed signal becomes 0 when any retract axis is
shifted.
Set a rotation axis as the C--axis (workpiece axis). (Bit 0 (ROTx) of
parameter No. 1006 = 1)
The gear ratio of the spindle to the position coder must be 1. (Bits 0 and
1 of parameter No. 3706 = 0)
[Classification] Input signal
[Function] Causes retraction along an axis specified using bit 0 (RTR) of parameter
No. 7730.
[Operation] When this signal becomes 1, the control unit behaves as follows:
D The control unit detects the positive--going edge of this signal, and can
cause retraction along an axis specified using bit 0 (RTR) of parameter
No. 7730 on that positive--going edge. The amount and speed of
retraction are those specified in advance using parameter Nos. 7741
and 7740. Upon the completion of retraction, the retract completed
signal RTRCTF becomes 1. The retract signal is usable for both
automatic operation (such as MEM and MDI) and manual operation
(such as HNDL and JOG) modes. If the retract signal is set to 1 during
automatic operation, retraction is started, and automatic operation is
discontinued.
D Manual setting of
one--rotation signal
D Retract function
Limitations
D Setting a rotation axis
D Gear ratio of the spindle
and position coder
Signal
Retract sig n al
RTRCT<G066#4>