
B-63943EN-1/02 8.MULTI-PATH CONTROL
- 947 -
NOTE
Input the speed of spindle S1 (feedback pulses from
the position coder) to both paths 1 and 2.
Troubleshooting
1. Unable to start superimposed control. (No alarm occurs.)
(1) The correct superimposed control options have not been set
up.
-> To perform superimposed control, you must set up the
correct options.
(2) Signal Gn190 has not risen.
-> Superimposed control starts at the rise of signal Gn190.
After superimposed control ends due to a reset or
alarm, merely canceling the reset or alarm cause will
not cause superimposed control to restart. After
canceling the reset or alarm cause, you must make the
signal rise again.
(3) The axis number of the axis subject to superimposed control
is not set in the appropriate parameter.
-> To perform superimposed control, set the axis number
of the master axis in parameter No. 8186.
(4) Superimposed control cannot be started if the NC unit is one
of the following states:
- Emergency stop
- Reset
- Servo alarm
- Alarm PW0000
- Alarm related to superimposed control
Superimposed control cannot be started, either, if the axis
on which superimposed control is to start is either of the
following states:
- Servo off
- Overtravel
2. An attempt to raise a superimposed start signal results in an
alarm.
(1) An attempt is made to use an axis already under
superimposed control for another superimposed signal
operation. (Alarms (PS0360))
-> You cannot use a single axis for a combination of
multiple superimposed control operations.
(2) The axis number set in a parameter is greater than the
number of controllable axes. (Alarms (PS0360))
-> The number of the superimposed master axis and that
of the interchanging axis subject to superimposed
control must not exceed the number of axes
controllable in the remote path (or the local path if you
are to perform superimposed control in that path).