
1.AXIS CONTROL B-63783EN-1/01
- 172 -
Explanation
- Axis configuration in tandem control
The limitations below are imposed on axis configuration in tandem
control.
(1) Up to four sets of tandem control can be used.
(2) Tandem control is handled as involving two controlled axes, but is
handed as involving one axis in a programmed command and
manual feed.
(3) Tandem control is handled as involving two axes in servo
parameter management and servo alarm monitoring.
(4) The servo axis numbers (parameter No. 1023) of the master axis
and slave axis must be set so that an odd number and the
subsequent even number are assigned, respectively.
Example: When the servo axis number (parameter No. 1023) of
the master axis is 1, the servo axis number of the slave
axis must be 2. When the servo axis number of the
master axis is 3, the servo axis number of the slave axis
must be 4.
(5) For the slave axis, bit 6 (DSP) of parameter No. 1004 must be set
to 1 to disable position display.
(6) Assign the same axis name to the master axis and slave axis.
(7) A suffix can be assigned to an axis name; examples are X1, X2,
XM, and XS. By assigning a suffix to the same axis name, axes
that have the same axis name can be distinguished from each other
when displayed on the screen; in addition, when an axis-by-axis
alarm is issued, the axis in question can be identified.
Parameter No. 1021 is used to set a suffix.
An example of exercising tandem control on the X-axis and Y-axis
with a machine that involves five axes (X, Y, Z, A, and B) is given
below.
Number of controlled axes (optional parameter) = 7
Axis
No.
Axis name
displayed
Axis name
(parameter
No. 1020)
Suffix
(parameter
No. 1021)
Servo axis
number
(parameter
No. 1023)
Tandem axis
(Bit 6 of
parameter
No. 1817)
1 XM 88 77 1 1 Tandem control master axis
2 XS 88 83 2 1 Tandem control slave axis
3 YM 89 77 3 1 Tandem control master axis
4 YS 89 83 4 1 Tandem control slave axis
5Z 90 0 5 0
6A 65 0 6 0
7B 66 0 7 0